/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp

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/*

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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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*

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* This code is free software; you can redistribute it and/or modify it

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* under the terms of the GNU General Public License version 2 only, as

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* published by the Free Software Foundation.

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*

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* This code is distributed in the hope that it will be useful, but WITHOUT

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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License

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* version 2 for more details (a copy is included in the LICENSE file that

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* accompanied this code).

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*

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* You should have received a copy of the GNU General Public License version

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* 2 along with this work; if not, write to the Free Software Foundation,

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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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*

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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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* or visit www.oracle.com if you need additional information or have any

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* questions.

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*

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*/

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#include "precompiled.hpp"

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#include "jvm.h"

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#include "classfile/classFileParser.hpp"

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#include "classfile/classFileStream.hpp"

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#include "classfile/classLoader.hpp"

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#include "classfile/classLoaderData.inline.hpp"

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#include "classfile/classLoadInfo.hpp"

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#include "classfile/defaultMethods.hpp"

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#include "classfile/fieldLayoutBuilder.hpp"

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#include "classfile/javaClasses.inline.hpp"

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#include "classfile/moduleEntry.hpp"

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#include "classfile/packageEntry.hpp"

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#include "classfile/symbolTable.hpp"

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#include "classfile/systemDictionary.hpp"

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#include "classfile/verificationType.hpp"

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#include "classfile/verifier.hpp"

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#include "classfile/vmClasses.hpp"

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#include "classfile/vmSymbols.hpp"

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#include "logging/log.hpp"

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#include "logging/logStream.hpp"

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#include "memory/allocation.hpp"

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#include "memory/metadataFactory.hpp"

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#include "memory/oopFactory.hpp"

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#include "memory/resourceArea.hpp"

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#include "memory/universe.hpp"

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#include "oops/annotations.hpp"

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#include "oops/constantPool.inline.hpp"

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#include "oops/fieldStreams.inline.hpp"

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#include "oops/instanceKlass.inline.hpp"

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#include "oops/instanceMirrorKlass.hpp"

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#include "oops/klass.inline.hpp"

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#include "oops/klassVtable.hpp"

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#include "oops/metadata.hpp"

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#include "oops/method.inline.hpp"

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#include "oops/oop.inline.hpp"

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#include "oops/recordComponent.hpp"

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#include "oops/symbol.hpp"

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#include "prims/jvmtiExport.hpp"

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#include "prims/jvmtiThreadState.hpp"

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#include "runtime/arguments.hpp"

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#include "runtime/fieldDescriptor.inline.hpp"

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#include "runtime/handles.inline.hpp"

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#include "runtime/javaCalls.hpp"

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#include "runtime/os.hpp"

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#include "runtime/perfData.hpp"

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#include "runtime/reflection.hpp"

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#include "runtime/safepointVerifiers.hpp"

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#include "runtime/signature.hpp"

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#include "runtime/timer.hpp"

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#include "services/classLoadingService.hpp"

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#include "services/threadService.hpp"

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#include "utilities/align.hpp"

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#include "utilities/bitMap.inline.hpp"

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#include "utilities/copy.hpp"

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#include "utilities/formatBuffer.hpp"

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#include "utilities/exceptions.hpp"

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#include "utilities/globalDefinitions.hpp"

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#include "utilities/growableArray.hpp"

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#include "utilities/macros.hpp"

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#include "utilities/ostream.hpp"

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#include "utilities/resourceHash.hpp"

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#include "utilities/utf8.hpp"

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#if INCLUDE_CDS1

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#include "classfile/systemDictionaryShared.hpp"

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#endif

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#if INCLUDE_JFR1

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#include "jfr/support/jfrTraceIdExtension.hpp"

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#endif

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// We generally try to create the oops directly when parsing, rather than

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// allocating temporary data structures and copying the bytes twice. A

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// temporary area is only needed when parsing utf8 entries in the constant

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// pool and when parsing line number tables.

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// We add assert in debug mode when class format is not checked.

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#define JAVA_CLASSFILE_MAGIC0xCAFEBABE 0xCAFEBABE

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#define JAVA_MIN_SUPPORTED_VERSION45 45

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#define JAVA_PREVIEW_MINOR_VERSION65535 65535

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// Used for two backward compatibility reasons:

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// - to check for new additions to the class file format in JDK1.5

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// - to check for bug fixes in the format checker in JDK1.5

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#define JAVA_1_5_VERSION49 49

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// Used for backward compatibility reasons:

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// - to check for javac bug fixes that happened after 1.5

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// - also used as the max version when running in jdk6

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#define JAVA_6_VERSION50 50

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// Used for backward compatibility reasons:

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// - to disallow argument and require ACC_STATIC for <clinit> methods

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#define JAVA_7_VERSION51 51

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// Extension method support.

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#define JAVA_8_VERSION52 52

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#define JAVA_9_VERSION53 53

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#define JAVA_10_VERSION54 54

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#define JAVA_11_VERSION55 55

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#define JAVA_12_VERSION56 56

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#define JAVA_13_VERSION57 57

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#define JAVA_14_VERSION58 58

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#define JAVA_15_VERSION59 59

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#define JAVA_16_VERSION60 60

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#define JAVA_17_VERSION61 61

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#define JAVA_18_VERSION62 62

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#define JAVA_19_VERSION63 63

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void ClassFileParser::set_class_bad_constant_seen(short bad_constant) {

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assert((bad_constant == JVM_CONSTANT_Module ||do { if (!((bad_constant == JVM_CONSTANT_Module || bad_constant
== JVM_CONSTANT_Package) && _major_version >= 53)
) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 147, "assert(" "(bad_constant == JVM_CONSTANT_Module || bad_constant == JVM_CONSTANT_Package) && _major_version >= 53"
") failed", "Unexpected bad constant pool entry"); ::breakpoint
(); } } while (0)

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bad_constant == JVM_CONSTANT_Package) && _major_version >= JAVA_9_VERSION,do { if (!((bad_constant == JVM_CONSTANT_Module || bad_constant
== JVM_CONSTANT_Package) && _major_version >= 53)
) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 147, "assert(" "(bad_constant == JVM_CONSTANT_Module || bad_constant == JVM_CONSTANT_Package) && _major_version >= 53"
") failed", "Unexpected bad constant pool entry"); ::breakpoint
(); } } while (0)

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"Unexpected bad constant pool entry")do { if (!((bad_constant == JVM_CONSTANT_Module || bad_constant
== JVM_CONSTANT_Package) && _major_version >= 53)
) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 147, "assert(" "(bad_constant == JVM_CONSTANT_Module || bad_constant == JVM_CONSTANT_Package) && _major_version >= 53"
") failed", "Unexpected bad constant pool entry"); ::breakpoint
(); } } while (0);

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if (_bad_constant_seen == 0) _bad_constant_seen = bad_constant;

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}

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void ClassFileParser::parse_constant_pool_entries(const ClassFileStream* const stream,

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ConstantPool* cp,

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const int length,

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TRAPSJavaThread* __the_thread__) {

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assert(stream != NULL, "invariant")do { if (!(stream != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 155, "assert(" "stream != __null" ") failed", "invariant");
::breakpoint(); } } while (0);

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assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 156, "assert(" "cp != __null" ") failed", "invariant"); ::breakpoint
(); } } while (0);

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// Use a local copy of ClassFileStream. It helps the C++ compiler to optimize

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// this function (_current can be allocated in a register, with scalar

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// replacement of aggregates). The _current pointer is copied back to

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// stream() when this function returns. DON'T call another method within

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// this method that uses stream().

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const ClassFileStream cfs1 = *stream;

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const ClassFileStream* const cfs = &cfs1;

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assert(cfs->allocated_on_stack_or_embedded(), "should be local")do { if (!(cfs->allocated_on_stack_or_embedded())) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 166, "assert(" "cfs->allocated_on_stack_or_embedded()" ") failed"
, "should be local"); ::breakpoint(); } } while (0);

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debug_only(const u1* const old_current = stream->current();)const u1* const old_current = stream->current();

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// Used for batching symbol allocations.

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const char* names[SymbolTable::symbol_alloc_batch_size];

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int lengths[SymbolTable::symbol_alloc_batch_size];

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int indices[SymbolTable::symbol_alloc_batch_size];

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unsigned int hashValues[SymbolTable::symbol_alloc_batch_size];

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int names_count = 0;

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// parsing Index 0 is unused

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for (int index = 1; index < length; index++) {

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// Each of the following case guarantees one more byte in the stream

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// for the following tag or the access_flags following constant pool,

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// so we don't need bounds-check for reading tag.

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const u1 tag = cfs->get_u1_fast();

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switch (tag) {

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case JVM_CONSTANT_Class : {

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cfs->guarantee_more(3, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // name_index, tag/access_flags

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const u2 name_index = cfs->get_u2_fast();

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cp->klass_index_at_put(index, name_index);

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break;

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}

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case JVM_CONSTANT_Fieldref: {

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cfs->guarantee_more(5, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // class_index, name_and_type_index, tag/access_flags

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const u2 class_index = cfs->get_u2_fast();

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const u2 name_and_type_index = cfs->get_u2_fast();

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cp->field_at_put(index, class_index, name_and_type_index);

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break;

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}

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case JVM_CONSTANT_Methodref: {

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cfs->guarantee_more(5, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // class_index, name_and_type_index, tag/access_flags

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const u2 class_index = cfs->get_u2_fast();

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const u2 name_and_type_index = cfs->get_u2_fast();

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cp->method_at_put(index, class_index, name_and_type_index);

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break;

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}

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case JVM_CONSTANT_InterfaceMethodref: {

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cfs->guarantee_more(5, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // class_index, name_and_type_index, tag/access_flags

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const u2 class_index = cfs->get_u2_fast();

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const u2 name_and_type_index = cfs->get_u2_fast();

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cp->interface_method_at_put(index, class_index, name_and_type_index);

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break;

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}

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case JVM_CONSTANT_String : {

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cfs->guarantee_more(3, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // string_index, tag/access_flags

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const u2 string_index = cfs->get_u2_fast();

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cp->string_index_at_put(index, string_index);

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break;

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}

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case JVM_CONSTANT_MethodHandle :

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case JVM_CONSTANT_MethodType: {

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if (_major_version < Verifier::INVOKEDYNAMIC_MAJOR_VERSION) {

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classfile_parse_error(

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"Class file version does not support constant tag %u in class file %s",

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tag, THREAD__the_thread__);

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return;

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}

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if (tag == JVM_CONSTANT_MethodHandle) {

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cfs->guarantee_more(4, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // ref_kind, method_index, tag/access_flags

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const u1 ref_kind = cfs->get_u1_fast();

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const u2 method_index = cfs->get_u2_fast();

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cp->method_handle_index_at_put(index, ref_kind, method_index);

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}

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else if (tag == JVM_CONSTANT_MethodType) {

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cfs->guarantee_more(3, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // signature_index, tag/access_flags

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const u2 signature_index = cfs->get_u2_fast();

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cp->method_type_index_at_put(index, signature_index);

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}

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else {

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ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here(
"/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 236); ::breakpoint(); } while (0);

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}

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break;

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}

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case JVM_CONSTANT_Dynamic : {

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if (_major_version < Verifier::DYNAMICCONSTANT_MAJOR_VERSION) {

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classfile_parse_error(

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"Class file version does not support constant tag %u in class file %s",

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tag, THREAD__the_thread__);

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return;

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}

247

cfs->guarantee_more(5, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // bsm_index, nt, tag/access_flags

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const u2 bootstrap_specifier_index = cfs->get_u2_fast();

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const u2 name_and_type_index = cfs->get_u2_fast();

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if (_max_bootstrap_specifier_index < (int) bootstrap_specifier_index) {

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_max_bootstrap_specifier_index = (int) bootstrap_specifier_index; // collect for later

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}

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cp->dynamic_constant_at_put(index, bootstrap_specifier_index, name_and_type_index);

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break;

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}

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case JVM_CONSTANT_InvokeDynamic : {

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if (_major_version < Verifier::INVOKEDYNAMIC_MAJOR_VERSION) {

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classfile_parse_error(

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"Class file version does not support constant tag %u in class file %s",

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tag, THREAD__the_thread__);

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return;

262

}

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cfs->guarantee_more(5, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // bsm_index, nt, tag/access_flags

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const u2 bootstrap_specifier_index = cfs->get_u2_fast();

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const u2 name_and_type_index = cfs->get_u2_fast();

266

if (_max_bootstrap_specifier_index < (int) bootstrap_specifier_index) {

267

_max_bootstrap_specifier_index = (int) bootstrap_specifier_index; // collect for later

268

}

269

cp->invoke_dynamic_at_put(index, bootstrap_specifier_index, name_and_type_index);

270

break;

271

}

272

case JVM_CONSTANT_Integer: {

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cfs->guarantee_more(5, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // bytes, tag/access_flags

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const u4 bytes = cfs->get_u4_fast();

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cp->int_at_put(index, (jint)bytes);

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break;

277

}

278

case JVM_CONSTANT_Float: {

279

cfs->guarantee_more(5, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // bytes, tag/access_flags

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const u4 bytes = cfs->get_u4_fast();

281

cp->float_at_put(index, *(jfloat*)&bytes);

282

break;

283

}

284

case JVM_CONSTANT_Long: {

285

// A mangled type might cause you to overrun allocated memory

286

guarantee_property(index + 1 < length,

287

"Invalid constant pool entry %u in class file %s",

288

index,

289

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

290

cfs->guarantee_more(9, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // bytes, tag/access_flags

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const u8 bytes = cfs->get_u8_fast();

292

cp->long_at_put(index, bytes);

293

index++; // Skip entry following eigth-byte constant, see JVM book p. 98

294

break;

295

}

296

case JVM_CONSTANT_Double: {

297

// A mangled type might cause you to overrun allocated memory

298

guarantee_property(index+1 < length,

299

"Invalid constant pool entry %u in class file %s",

300

index,

301

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

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cfs->guarantee_more(9, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // bytes, tag/access_flags

303

const u8 bytes = cfs->get_u8_fast();

304

cp->double_at_put(index, *(jdouble*)&bytes);

305

index++; // Skip entry following eigth-byte constant, see JVM book p. 98

306

break;

307

}

308

case JVM_CONSTANT_NameAndType: {

309

cfs->guarantee_more(5, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // name_index, signature_index, tag/access_flags

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const u2 name_index = cfs->get_u2_fast();

311

const u2 signature_index = cfs->get_u2_fast();

312

cp->name_and_type_at_put(index, name_index, signature_index);

313

break;

314

}

315

case JVM_CONSTANT_Utf8 : {

316

cfs->guarantee_more(2, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // utf8_length

317

u2 utf8_length = cfs->get_u2_fast();

318

const u1* utf8_buffer = cfs->current();

319

assert(utf8_buffer != NULL, "null utf8 buffer")do { if (!(utf8_buffer != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 319, "assert(" "utf8_buffer != __null" ") failed", "null utf8 buffer"
); ::breakpoint(); } } while (0);

320

// Got utf8 string, guarantee utf8_length+1 bytes, set stream position forward.

321

cfs->guarantee_more(utf8_length+1, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // utf8 string, tag/access_flags

322

cfs->skip_u1_fast(utf8_length);

323

324

// Before storing the symbol, make sure it's legal

325

if (_need_verify) {

326

verify_legal_utf8(utf8_buffer, utf8_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

327

}

328

329

unsigned int hash;

330

Symbol* const result = SymbolTable::lookup_only((const char*)utf8_buffer,

331

utf8_length,

332

hash);

333

if (result == NULL__null) {

334

names[names_count] = (const char*)utf8_buffer;

335

lengths[names_count] = utf8_length;

336

indices[names_count] = index;

337

hashValues[names_count++] = hash;

338

if (names_count == SymbolTable::symbol_alloc_batch_size) {

339

SymbolTable::new_symbols(_loader_data,

340

constantPoolHandle(THREAD__the_thread__, cp),

341

names_count,

342

names,

343

lengths,

344

indices,

345

hashValues);

346

names_count = 0;

347

}

348

} else {

349

cp->symbol_at_put(index, result);

350

}

351

break;

352

}

353

case JVM_CONSTANT_Module:

354

case JVM_CONSTANT_Package: {

355

// Record that an error occurred in these two cases but keep parsing so

356

// that ACC_Module can be checked for in the access_flags. Need to

357

// throw NoClassDefFoundError in that case.

358

if (_major_version >= JAVA_9_VERSION53) {

359

cfs->guarantee_more(3, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

360

cfs->get_u2_fast();

361

set_class_bad_constant_seen(tag);

362

break;

363

}

364

}

365

default: {

366

classfile_parse_error("Unknown constant tag %u in class file %s",

367

tag,

368

THREAD__the_thread__);

369

return;

370

}

371

} // end of switch(tag)

372

} // end of for

373

374

// Allocate the remaining symbols

375

if (names_count > 0) {

376

SymbolTable::new_symbols(_loader_data,

377

constantPoolHandle(THREAD__the_thread__, cp),

378

names_count,

379

names,

380

lengths,

381

indices,

382

hashValues);

383

}

384

385

// Copy _current pointer of local copy back to stream.

386

assert(stream->current() == old_current, "non-exclusive use of stream")do { if (!(stream->current() == old_current)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 386, "assert(" "stream->current() == old_current" ") failed"
, "non-exclusive use of stream"); ::breakpoint(); } } while (
0);

387

stream->set_current(cfs1.current());

388

389

}

390

391

static inline bool valid_cp_range(int index, int length) {

392

return (index > 0 && index < length);

393

}

394

395

static inline Symbol* check_symbol_at(const ConstantPool* cp, int index) {

396

assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 396, "assert(" "cp != __null" ") failed", "invariant"); ::breakpoint
(); } } while (0);

397

if (valid_cp_range(index, cp->length()) && cp->tag_at(index).is_utf8()) {

398

return cp->symbol_at(index);

399

}

400

return NULL__null;

401

}

402

403

#ifdef ASSERT1

404

PRAGMA_DIAG_PUSHGCC diagnostic push

405

PRAGMA_FORMAT_NONLITERAL_IGNOREDGCC diagnostic ignored "-Wformat-nonliteral" GCC diagnostic ignored
"-Wformat-security"

406

void ClassFileParser::report_assert_property_failure(const char* msg, TRAPSJavaThread* __the_thread__) const {

407

ResourceMark rm(THREAD__the_thread__);

408

fatal(msg, _class_name->as_C_string())do { (*g_assert_poison) = 'X';; report_fatal(INTERNAL_ERROR, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 408, msg, _class_name->as_C_string()); ::breakpoint(); }
while (0);

409

}

410

411

void ClassFileParser::report_assert_property_failure(const char* msg,

412

int index,

413

TRAPSJavaThread* __the_thread__) const {

414

ResourceMark rm(THREAD__the_thread__);

415

fatal(msg, index, _class_name->as_C_string())do { (*g_assert_poison) = 'X';; report_fatal(INTERNAL_ERROR, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 415, msg, index, _class_name->as_C_string()); ::breakpoint
(); } while (0);

416

}

417

PRAGMA_DIAG_POPGCC diagnostic pop

418

#endif

419

420

void ClassFileParser::parse_constant_pool(const ClassFileStream* const stream,

421

ConstantPool* const cp,

422

const int length,

423

TRAPSJavaThread* __the_thread__) {

424

assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 424, "assert(" "cp != __null" ") failed", "invariant"); ::breakpoint
(); } } while (0);

425

assert(stream != NULL, "invariant")do { if (!(stream != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 425, "assert(" "stream != __null" ") failed", "invariant");
::breakpoint(); } } while (0);

426

427

// parsing constant pool entries

428

parse_constant_pool_entries(stream, cp, length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

429

if (class_bad_constant_seen() != 0) {

430

// a bad CP entry has been detected previously so stop parsing and just return.

431

return;

432

}

433

434

int index = 1; // declared outside of loops for portability

435

int num_klasses = 0;

436

437

// first verification pass - validate cross references

438

// and fixup class and string constants

439

for (index = 1; index < length; index++) { // Index 0 is unused

440

const jbyte tag = cp->tag_at(index).value();

441

switch (tag) {

442

case JVM_CONSTANT_Class: {

443

ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here(
"/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 443); ::breakpoint(); } while (0); // Only JVM_CONSTANT_ClassIndex should be present

444

break;

445

}

446

case JVM_CONSTANT_Fieldref:

447

// fall through

448

case JVM_CONSTANT_Methodref:

449

// fall through

450

case JVM_CONSTANT_InterfaceMethodref: {

451

if (!_need_verify) break;

452

const int klass_ref_index = cp->klass_ref_index_at(index);

453

const int name_and_type_ref_index = cp->name_and_type_ref_index_at(index);

454

check_property(valid_klass_reference_at(klass_ref_index),

455

"Invalid constant pool index %u in class file %s",

456

klass_ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

457

check_property(valid_cp_range(name_and_type_ref_index, length) &&

458

cp->tag_at(name_and_type_ref_index).is_name_and_type(),

459

"Invalid constant pool index %u in class file %s",

460

name_and_type_ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

461

break;

462

}

463

case JVM_CONSTANT_String: {

464

ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here(
"/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 464); ::breakpoint(); } while (0); // Only JVM_CONSTANT_StringIndex should be present

465

break;

466

}

467

case JVM_CONSTANT_Integer:

468

break;

469

case JVM_CONSTANT_Float:

470

break;

471

case JVM_CONSTANT_Long:

472

case JVM_CONSTANT_Double: {

473

index++;

474

check_property(

475

(index < length && cp->tag_at(index).is_invalid()),

476

"Improper constant pool long/double index %u in class file %s",

477

index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

478

break;

479

}

480

case JVM_CONSTANT_NameAndType: {

481

if (!_need_verify) break;

482

const int name_ref_index = cp->name_ref_index_at(index);

483

const int signature_ref_index = cp->signature_ref_index_at(index);

484

check_property(valid_symbol_at(name_ref_index),

485

"Invalid constant pool index %u in class file %s",

486

name_ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

487

check_property(valid_symbol_at(signature_ref_index),

488

"Invalid constant pool index %u in class file %s",

489

signature_ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

490

break;

491

}

492

case JVM_CONSTANT_Utf8:

493

break;

494

case JVM_CONSTANT_UnresolvedClass: // fall-through

495

case JVM_CONSTANT_UnresolvedClassInError: {

496

ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here(
"/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 496); ::breakpoint(); } while (0); // Only JVM_CONSTANT_ClassIndex should be present

497

break;

498

}

499

case JVM_CONSTANT_ClassIndex: {

500

const int class_index = cp->klass_index_at(index);

501

check_property(valid_symbol_at(class_index),

502

"Invalid constant pool index %u in class file %s",

503

class_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

504

cp->unresolved_klass_at_put(index, class_index, num_klasses++);

505

break;

506

}

507

case JVM_CONSTANT_StringIndex: {

508

const int string_index = cp->string_index_at(index);

509

check_property(valid_symbol_at(string_index),

510

"Invalid constant pool index %u in class file %s",

511

string_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

512

Symbol* const sym = cp->symbol_at(string_index);

513

cp->unresolved_string_at_put(index, sym);

514

break;

515

}

516

case JVM_CONSTANT_MethodHandle: {

517

const int ref_index = cp->method_handle_index_at(index);

518

check_property(valid_cp_range(ref_index, length),

519

"Invalid constant pool index %u in class file %s",

520

ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

521

const constantTag tag = cp->tag_at(ref_index);

522

const int ref_kind = cp->method_handle_ref_kind_at(index);

523

524

switch (ref_kind) {

525

case JVM_REF_getField:

526

case JVM_REF_getStatic:

527

case JVM_REF_putField:

528

case JVM_REF_putStatic: {

529

check_property(

530

tag.is_field(),

531

"Invalid constant pool index %u in class file %s (not a field)",

532

ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

533

break;

534

}

535

case JVM_REF_invokeVirtual:

536

case JVM_REF_newInvokeSpecial: {

537

check_property(

538

tag.is_method(),

539

"Invalid constant pool index %u in class file %s (not a method)",

540

ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

541

break;

542

}

543

case JVM_REF_invokeStatic:

544

case JVM_REF_invokeSpecial: {

545

check_property(

546

tag.is_method() ||

547

((_major_version >= JAVA_8_VERSION52) && tag.is_interface_method()),

548

"Invalid constant pool index %u in class file %s (not a method)",

549

ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

550

break;

551

}

552

case JVM_REF_invokeInterface: {

553

check_property(

554

tag.is_interface_method(),

555

"Invalid constant pool index %u in class file %s (not an interface method)",

556

ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

557

break;

558

}

559

default: {

560

classfile_parse_error(

561

"Bad method handle kind at constant pool index %u in class file %s",

562

index, THREAD__the_thread__);

563

return;

564

}

565

} // switch(refkind)

566

// Keep the ref_index unchanged. It will be indirected at link-time.

567

break;

568

} // case MethodHandle

569

case JVM_CONSTANT_MethodType: {

570

const int ref_index = cp->method_type_index_at(index);

571

check_property(valid_symbol_at(ref_index),

572

"Invalid constant pool index %u in class file %s",

573

ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

574

break;

575

}

576

case JVM_CONSTANT_Dynamic: {

577

const int name_and_type_ref_index =

578

cp->bootstrap_name_and_type_ref_index_at(index);

579

580

check_property(valid_cp_range(name_and_type_ref_index, length) &&

581

cp->tag_at(name_and_type_ref_index).is_name_and_type(),

582

"Invalid constant pool index %u in class file %s",

583

name_and_type_ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

584

// bootstrap specifier index must be checked later,

585

// when BootstrapMethods attr is available

586

587

// Mark the constant pool as having a CONSTANT_Dynamic_info structure

588

cp->set_has_dynamic_constant();

589

break;

590

}

591

case JVM_CONSTANT_InvokeDynamic: {

592

const int name_and_type_ref_index =

593

cp->bootstrap_name_and_type_ref_index_at(index);

594

595

check_property(valid_cp_range(name_and_type_ref_index, length) &&

596

cp->tag_at(name_and_type_ref_index).is_name_and_type(),

597

"Invalid constant pool index %u in class file %s",

598

name_and_type_ref_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

599

// bootstrap specifier index must be checked later,

600

// when BootstrapMethods attr is available

601

break;

602

}

603

default: {

604

fatal("bad constant pool tag value %u", cp->tag_at(index).value())do { (*g_assert_poison) = 'X';; report_fatal(INTERNAL_ERROR, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 604, "bad constant pool tag value %u", cp->tag_at(index)
.value()); ::breakpoint(); } while (0);

605

ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here(
"/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 605); ::breakpoint(); } while (0);

606

break;

607

}

608

} // switch(tag)

609

} // end of for

610

611

cp->allocate_resolved_klasses(_loader_data, num_klasses, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

612

613

if (!_need_verify) {

614

return;

615

}

616

617

// second verification pass - checks the strings are of the right format.

618

// but not yet to the other entries

619

for (index = 1; index < length; index++) {

620

const jbyte tag = cp->tag_at(index).value();

621

switch (tag) {

622

case JVM_CONSTANT_UnresolvedClass: {

623

const Symbol* const class_name = cp->klass_name_at(index);

624

// check the name

625

verify_legal_class_name(class_name, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

626

break;

627

}

628

case JVM_CONSTANT_NameAndType: {

629

if (_need_verify) {

630

const int sig_index = cp->signature_ref_index_at(index);

631

const int name_index = cp->name_ref_index_at(index);

632

const Symbol* const name = cp->symbol_at(name_index);

633

const Symbol* const sig = cp->symbol_at(sig_index);

634

guarantee_property(sig->utf8_length() != 0,

635

"Illegal zero length constant pool entry at %d in class %s",

636

sig_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

637

guarantee_property(name->utf8_length() != 0,

638

"Illegal zero length constant pool entry at %d in class %s",

639

name_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

640

641

if (Signature::is_method(sig)) {

642

// Format check method name and signature

643

verify_legal_method_name(name, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

644

verify_legal_method_signature(name, sig, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

645

} else {

646

// Format check field name and signature

647

verify_legal_field_name(name, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

648

verify_legal_field_signature(name, sig, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

649

}

650

}

651

break;

652

}

653

case JVM_CONSTANT_Dynamic: {

654

const int name_and_type_ref_index =

655

cp->name_and_type_ref_index_at(index);

656

// already verified to be utf8

657

const int name_ref_index =

658

cp->name_ref_index_at(name_and_type_ref_index);

659

// already verified to be utf8

660

const int signature_ref_index =

661

cp->signature_ref_index_at(name_and_type_ref_index);

662

const Symbol* const name = cp->symbol_at(name_ref_index);

663

const Symbol* const signature = cp->symbol_at(signature_ref_index);

664

if (_need_verify) {

665

// CONSTANT_Dynamic's name and signature are verified above, when iterating NameAndType_info.

666

// Need only to be sure signature is the right type.

667

if (Signature::is_method(signature)) {

668

throwIllegalSignature("CONSTANT_Dynamic", name, signature, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

669

}

670

}

671

break;

672

}

673

case JVM_CONSTANT_InvokeDynamic:

674

case JVM_CONSTANT_Fieldref:

675

case JVM_CONSTANT_Methodref:

676

case JVM_CONSTANT_InterfaceMethodref: {

677

const int name_and_type_ref_index =

678

cp->name_and_type_ref_index_at(index);

679

// already verified to be utf8

680

const int name_ref_index =

681

cp->name_ref_index_at(name_and_type_ref_index);

682

// already verified to be utf8

683

const int signature_ref_index =

684

cp->signature_ref_index_at(name_and_type_ref_index);

685

const Symbol* const name = cp->symbol_at(name_ref_index);

686

const Symbol* const signature = cp->symbol_at(signature_ref_index);

687

if (tag == JVM_CONSTANT_Fieldref) {

688

if (_need_verify) {

689

// Field name and signature are verified above, when iterating NameAndType_info.

690

// Need only to be sure signature is non-zero length and the right type.

691

if (Signature::is_method(signature)) {

692

throwIllegalSignature("Field", name, signature, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

693

}

694

}

695

} else {

696

if (_need_verify) {

697

// Method name and signature are individually verified above, when iterating

698

// NameAndType_info. Need to check here that signature is non-zero length and

699

// the right type.

700

if (!Signature::is_method(signature)) {

701

throwIllegalSignature("Method", name, signature, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

702

}

703

}

704

// If a class method name begins with '<', it must be "<init>" and have void signature.

705

const unsigned int name_len = name->utf8_length();

706

if (tag == JVM_CONSTANT_Methodref && name_len != 0 &&

707

name->char_at(0) == JVM_SIGNATURE_SPECIAL) {

708

if (name != vmSymbols::object_initializer_name()) {

709

classfile_parse_error(

710

"Bad method name at constant pool index %u in class file %s",

711

name_ref_index, THREAD__the_thread__);

712

return;

713

} else if (!Signature::is_void_method(signature)) { // must have void signature.

714

throwIllegalSignature("Method", name, signature, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

715

}

716

}

717

}

718

break;

719

}

720

case JVM_CONSTANT_MethodHandle: {

721

const int ref_index = cp->method_handle_index_at(index);

722

const int ref_kind = cp->method_handle_ref_kind_at(index);

723

switch (ref_kind) {

724

case JVM_REF_invokeVirtual:

725

case JVM_REF_invokeStatic:

726

case JVM_REF_invokeSpecial:

727

case JVM_REF_newInvokeSpecial: {

728

const int name_and_type_ref_index =

729

cp->name_and_type_ref_index_at(ref_index);

730

const int name_ref_index =

731

cp->name_ref_index_at(name_and_type_ref_index);

732

const Symbol* const name = cp->symbol_at(name_ref_index);

733

if (ref_kind == JVM_REF_newInvokeSpecial) {

734

if (name != vmSymbols::object_initializer_name()) {

735

classfile_parse_error(

736

"Bad constructor name at constant pool index %u in class file %s",

737

name_ref_index, THREAD__the_thread__);

738

return;

739

}

740

} else {

741

if (name == vmSymbols::object_initializer_name()) {

742

classfile_parse_error(

743

"Bad method name at constant pool index %u in class file %s",

744

name_ref_index, THREAD__the_thread__);

745

return;

746

}

747

}

748

break;

749

}

750

// Other ref_kinds are already fully checked in previous pass.

751

} // switch(ref_kind)

752

break;

753

}

754

case JVM_CONSTANT_MethodType: {

755

const Symbol* const no_name = vmSymbols::type_name(); // place holder

756

const Symbol* const signature = cp->method_type_signature_at(index);

757

verify_legal_method_signature(no_name, signature, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

758

break;

759

}

760

case JVM_CONSTANT_Utf8: {

761

assert(cp->symbol_at(index)->refcount() != 0, "count corrupted")do { if (!(cp->symbol_at(index)->refcount() != 0)) { (*
g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 761, "assert(" "cp->symbol_at(index)->refcount() != 0"
") failed", "count corrupted"); ::breakpoint(); } } while (0
);

762

}

763

} // switch(tag)

764

} // end of for

765

}

766

767

class NameSigHash: public ResourceObj {

768

public:

769

const Symbol* _name; // name

770

const Symbol* _sig; // signature

771

NameSigHash* _next; // Next entry in hash table

772

};

773

774

static const int HASH_ROW_SIZE = 256;

775

776

static unsigned int hash(const Symbol* name, const Symbol* sig) {

777

unsigned int raw_hash = 0;

778

raw_hash += ((unsigned int)(uintptr_t)name) >> (LogHeapWordSize + 2);

779

raw_hash += ((unsigned int)(uintptr_t)sig) >> LogHeapWordSize;

780

781

return (raw_hash + (unsigned int)(uintptr_t)name) % HASH_ROW_SIZE;

782

}

783

784

785

static void initialize_hashtable(NameSigHash** table) {

786

memset((void*)table, 0, sizeof(NameSigHash*) * HASH_ROW_SIZE);

787

}

788

// Return false if the name/sig combination is found in table.

789

// Return true if no duplicate is found. And name/sig is added as a new entry in table.

790

// The old format checker uses heap sort to find duplicates.

791

// NOTE: caller should guarantee that GC doesn't happen during the life cycle

792

// of table since we don't expect Symbol*'s to move.

793

static bool put_after_lookup(const Symbol* name, const Symbol* sig, NameSigHash** table) {

794

assert(name != NULL, "name in constant pool is NULL")do { if (!(name != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 794, "assert(" "name != __null" ") failed", "name in constant pool is NULL"
); ::breakpoint(); } } while (0);

795

796

// First lookup for duplicates

797

int index = hash(name, sig);

798

NameSigHash* entry = table[index];

799

while (entry != NULL__null) {

800

if (entry->_name == name && entry->_sig == sig) {

801

return false;

802

}

803

entry = entry->_next;

804

}

805

806

// No duplicate is found, allocate a new entry and fill it.

807

entry = new NameSigHash();

808

entry->_name = name;

809

entry->_sig = sig;

810

811

// Insert into hash table

812

entry->_next = table[index];

813

table[index] = entry;

814

815

return true;

816

}

817

818

// Side-effects: populates the _local_interfaces field

819

void ClassFileParser::parse_interfaces(const ClassFileStream* const stream,

820

const int itfs_len,

821

ConstantPool* const cp,

822

bool* const has_nonstatic_concrete_methods,

823

TRAPSJavaThread* __the_thread__) {

824

assert(stream != NULL, "invariant")do { if (!(stream != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 824, "assert(" "stream != __null" ") failed", "invariant");
::breakpoint(); } } while (0);

825

assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 825, "assert(" "cp != __null" ") failed", "invariant"); ::breakpoint
(); } } while (0);

826

assert(has_nonstatic_concrete_methods != NULL, "invariant")do { if (!(has_nonstatic_concrete_methods != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 826, "assert(" "has_nonstatic_concrete_methods != __null" ") failed"
, "invariant"); ::breakpoint(); } } while (0);

827

828

if (itfs_len == 0) {

829

_local_interfaces = Universe::the_empty_instance_klass_array();

830

} else {

831

assert(itfs_len > 0, "only called for len>0")do { if (!(itfs_len > 0)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 831, "assert(" "itfs_len > 0" ") failed", "only called for len>0"
); ::breakpoint(); } } while (0);

832

_local_interfaces = MetadataFactory::new_array<InstanceKlass*>(_loader_data, itfs_len, NULL__null, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

833

834

int index;

835

for (index = 0; index < itfs_len; index++) {

836

const u2 interface_index = stream->get_u2(CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

837

Klass* interf;

838

check_property(

839

valid_klass_reference_at(interface_index),

840

"Interface name has bad constant pool index %u in class file %s",

841

interface_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

842

if (cp->tag_at(interface_index).is_klass()) {

843

interf = cp->resolved_klass_at(interface_index);

844

} else {

845

Symbol* const unresolved_klass = cp->klass_name_at(interface_index);

846

847

// Don't need to check legal name because it's checked when parsing constant pool.

848

// But need to make sure it's not an array type.

849

guarantee_property(unresolved_klass->char_at(0) != JVM_SIGNATURE_ARRAY,

850

"Bad interface name in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

851

852

// Call resolve_super so class circularity is checked

853

interf = SystemDictionary::resolve_super_or_fail(

854

_class_name,

855

unresolved_klass,

856

Handle(THREAD__the_thread__, _loader_data->class_loader()),

857

_protection_domain,

858

false,

859

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

860

}

861

862

if (!interf->is_interface()) {

863

THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(),{ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 867, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s can not implement %s, because it is not an interface (%s)"
, _class_name->as_klass_external_name(), interf->external_name
(), interf->class_in_module_of_loader())); return; }

864

err_msg("class %s can not implement %s, because it is not an interface (%s)",{ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 867, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s can not implement %s, because it is not an interface (%s)"
, _class_name->as_klass_external_name(), interf->external_name
(), interf->class_in_module_of_loader())); return; }

865

_class_name->as_klass_external_name(),{ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 867, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s can not implement %s, because it is not an interface (%s)"
, _class_name->as_klass_external_name(), interf->external_name
(), interf->class_in_module_of_loader())); return; }

866

interf->external_name(),{ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 867, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s can not implement %s, because it is not an interface (%s)"
, _class_name->as_klass_external_name(), interf->external_name
(), interf->class_in_module_of_loader())); return; }

867

interf->class_in_module_of_loader())){ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 867, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s can not implement %s, because it is not an interface (%s)"
, _class_name->as_klass_external_name(), interf->external_name
(), interf->class_in_module_of_loader())); return; };

868

}

869

870

if (InstanceKlass::cast(interf)->has_nonstatic_concrete_methods()) {

871

*has_nonstatic_concrete_methods = true;

872

}

873

_local_interfaces->at_put(index, InstanceKlass::cast(interf));

874

}

875

876

if (!_need_verify || itfs_len <= 1) {

877

return;

878

}

879

880

// Check if there's any duplicates in interfaces

881

ResourceMark rm(THREAD__the_thread__);

882

NameSigHash** interface_names = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD,(NameSigHash**) resource_allocate_bytes(__the_thread__, (HASH_ROW_SIZE
) * sizeof(NameSigHash*))

883

NameSigHash*,(NameSigHash**) resource_allocate_bytes(__the_thread__, (HASH_ROW_SIZE
) * sizeof(NameSigHash*))

884

HASH_ROW_SIZE)(NameSigHash**) resource_allocate_bytes(__the_thread__, (HASH_ROW_SIZE
) * sizeof(NameSigHash*));

885

initialize_hashtable(interface_names);

886

bool dup = false;

887

const Symbol* name = NULL__null;

888

{

889

debug_only(NoSafepointVerifier nsv;)NoSafepointVerifier nsv;

890

for (index = 0; index < itfs_len; index++) {

891

const InstanceKlass* const k = _local_interfaces->at(index);

892

name = k->name();

893

// If no duplicates, add (name, NULL) in hashtable interface_names.

894

if (!put_after_lookup(name, NULL__null, interface_names)) {

895

dup = true;

896

break;

897

}

898

}

899

}

900

if (dup) {

901

classfile_parse_error("Duplicate interface name \"%s\" in class file %s",

902

name->as_C_string(), THREAD__the_thread__);

903

}

904

}

905

}

906

907

void ClassFileParser::verify_constantvalue(const ConstantPool* const cp,

908

int constantvalue_index,

909

int signature_index,

910

TRAPSJavaThread* __the_thread__) const {

911

// Make sure the constant pool entry is of a type appropriate to this field

912

guarantee_property(

913

(constantvalue_index > 0 &&

914

constantvalue_index < cp->length()),

915

"Bad initial value index %u in ConstantValue attribute in class file %s",

916

constantvalue_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

917

918

const constantTag value_type = cp->tag_at(constantvalue_index);

919

switch(cp->basic_type_for_signature_at(signature_index)) {

920

case T_LONG: {

921

guarantee_property(value_type.is_long(),

922

"Inconsistent constant value type in class file %s",

923

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

924

break;

925

}

926

case T_FLOAT: {

927

guarantee_property(value_type.is_float(),

928

"Inconsistent constant value type in class file %s",

929

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

930

break;

931

}

932

case T_DOUBLE: {

933

guarantee_property(value_type.is_double(),

934

"Inconsistent constant value type in class file %s",

935

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

936

break;

937

}

938

case T_BYTE:

939

case T_CHAR:

940

case T_SHORT:

941

case T_BOOLEAN:

942

case T_INT: {

943

guarantee_property(value_type.is_int(),

944

"Inconsistent constant value type in class file %s",

945

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

946

break;

947

}

948

case T_OBJECT: {

949

guarantee_property((cp->symbol_at(signature_index)->equals("Ljava/lang/String;")

950

&& value_type.is_string()),

951

"Bad string initial value in class file %s",

952

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

953

break;

954

}

955

default: {

956

classfile_parse_error("Unable to set initial value %u in class file %s",

957

constantvalue_index,

958

THREAD__the_thread__);

959

}

960

}

961

}

962

963

class AnnotationCollector : public ResourceObj{

964

public:

965

enum Location { _in_field, _in_method, _in_class };

966

enum ID {

967

_unknown = 0,

968

_method_CallerSensitive,

969

_method_ForceInline,

970

_method_DontInline,

971

_method_InjectedProfile,

972

_method_LambdaForm_Compiled,

973

_method_Hidden,

974

_method_Scoped,

975

_method_IntrinsicCandidate,

976

_jdk_internal_vm_annotation_Contended,

977

_field_Stable,

978

_jdk_internal_vm_annotation_ReservedStackAccess,

979

_jdk_internal_ValueBased,

980

_annotation_LIMIT

981

};

982

const Location _location;

983

int _annotations_present;

984

u2 _contended_group;

985

986

AnnotationCollector(Location location)

987

: _location(location), _annotations_present(0), _contended_group(0)

988

{

989

assert((int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte, "")do { if (!((int)_annotation_LIMIT <= (int)sizeof(_annotations_present
) * BitsPerByte)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 989, "assert(" "(int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte"
") failed", ""); ::breakpoint(); } } while (0);

990

}

991

// If this annotation name has an ID, report it (or _none).

992

ID annotation_index(const ClassLoaderData* loader_data, const Symbol* name, bool can_access_vm_annotations);

993

// Set the annotation name:

994

void set_annotation(ID id) {

995

assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob")do { if (!((int)id >= 0 && (int)id < (int)_annotation_LIMIT
)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 995, "assert(" "(int)id >= 0 && (int)id < (int)_annotation_LIMIT"
") failed", "oob"); ::breakpoint(); } } while (0);

996

_annotations_present |= nth_bit((int)id)((((int)id) >= BitsPerWord) ? 0 : (OneBit << ((int)id
)));

997

}

998

999

void remove_annotation(ID id) {

1000

assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob")do { if (!((int)id >= 0 && (int)id < (int)_annotation_LIMIT
)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1000, "assert(" "(int)id >= 0 && (int)id < (int)_annotation_LIMIT"
") failed", "oob"); ::breakpoint(); } } while (0);

1001

_annotations_present &= ~nth_bit((int)id)((((int)id) >= BitsPerWord) ? 0 : (OneBit << ((int)id
)));

1002

}

1003

1004

// Report if the annotation is present.

1005

bool has_any_annotations() const { return _annotations_present != 0; }

1006

bool has_annotation(ID id) const { return (nth_bit((int)id)((((int)id) >= BitsPerWord) ? 0 : (OneBit << ((int)id
))) & _annotations_present) != 0; }

1007

1008

void set_contended_group(u2 group) { _contended_group = group; }

1009

u2 contended_group() const { return _contended_group; }

1010

1011

bool is_contended() const { return has_annotation(_jdk_internal_vm_annotation_Contended); }

1012

1013

void set_stable(bool stable) { set_annotation(_field_Stable); }

1014

bool is_stable() const { return has_annotation(_field_Stable); }

1015

};

1016

1017

// This class also doubles as a holder for metadata cleanup.

1018

class ClassFileParser::FieldAnnotationCollector : public AnnotationCollector {

1019

private:

1020

ClassLoaderData* _loader_data;

1021

AnnotationArray* _field_annotations;

1022

AnnotationArray* _field_type_annotations;

1023

public:

1024

FieldAnnotationCollector(ClassLoaderData* loader_data) :

1025

AnnotationCollector(_in_field),

1026

_loader_data(loader_data),

1027

_field_annotations(NULL__null),

1028

_field_type_annotations(NULL__null) {}

1029

~FieldAnnotationCollector();

1030

void apply_to(FieldInfo* f);

1031

AnnotationArray* field_annotations() { return _field_annotations; }

1032

AnnotationArray* field_type_annotations() { return _field_type_annotations; }

1033

1034

void set_field_annotations(AnnotationArray* a) { _field_annotations = a; }

1035

void set_field_type_annotations(AnnotationArray* a) { _field_type_annotations = a; }

1036

};

1037

1038

class MethodAnnotationCollector : public AnnotationCollector{

1039

public:

1040

MethodAnnotationCollector() : AnnotationCollector(_in_method) { }

1041

void apply_to(const methodHandle& m);

1042

};

1043

1044

class ClassFileParser::ClassAnnotationCollector : public AnnotationCollector{

1045

public:

1046

ClassAnnotationCollector() : AnnotationCollector(_in_class) { }

1047

void apply_to(InstanceKlass* ik);

1048

};

1049

1050

1051

static int skip_annotation_value(const u1*, int, int); // fwd decl

1052

1053

// Safely increment index by val if does not pass limit

1054

#define SAFE_ADD(index, limit, val)if (index >= limit - val) return limit; index += val; \

1055

if (index >= limit - val) return limit; \

1056

index += val;

1057

1058

// Skip an annotation. Return >=limit if there is any problem.

1059

static int skip_annotation(const u1* buffer, int limit, int index) {

1060

assert(buffer != NULL, "invariant")do { if (!(buffer != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1060, "assert(" "buffer != __null" ") failed", "invariant")
; ::breakpoint(); } } while (0);

1061

// annotation := atype:u2 do(nmem:u2) {member:u2 value}

1062

// value := switch (tag:u1) { ... }

1063

SAFE_ADD(index, limit, 4)if (index >= limit - 4) return limit; index += 4;; // skip atype and read nmem

1064

int nmem = Bytes::get_Java_u2((address)buffer + index - 2);

1065

while (--nmem >= 0 && index < limit) {

1066

SAFE_ADD(index, limit, 2)if (index >= limit - 2) return limit; index += 2;; // skip member

1067

index = skip_annotation_value(buffer, limit, index);

1068

}

1069

return index;

1070

}

1071

1072

// Skip an annotation value. Return >=limit if there is any problem.

1073

static int skip_annotation_value(const u1* buffer, int limit, int index) {

1074

assert(buffer != NULL, "invariant")do { if (!(buffer != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1074, "assert(" "buffer != __null" ") failed", "invariant")
; ::breakpoint(); } } while (0);

1075

1076

// value := switch (tag:u1) {

1077

// case B, C, I, S, Z, D, F, J, c: con:u2;

1078

// case e: e_class:u2 e_name:u2;

1079

// case s: s_con:u2;

1080

// case [: do(nval:u2) {value};

1081

// case @: annotation;

1082

// case s: s_con:u2;

1083

// }

1084

SAFE_ADD(index, limit, 1)if (index >= limit - 1) return limit; index += 1;; // read tag

1085

const u1 tag = buffer[index - 1];

1086

switch (tag) {

1087

case 'B':

1088

case 'C':

1089

case 'I':

1090

case 'S':

1091

case 'Z':

1092

case 'D':

1093

case 'F':

1094

case 'J':

1095

case 'c':

1096

case 's':

1097

SAFE_ADD(index, limit, 2)if (index >= limit - 2) return limit; index += 2;; // skip con or s_con

1098

break;

1099

case 'e':

1100

SAFE_ADD(index, limit, 4)if (index >= limit - 4) return limit; index += 4;; // skip e_class, e_name

1101

break;

1102

case '[':

1103

{

1104

SAFE_ADD(index, limit, 2)if (index >= limit - 2) return limit; index += 2;; // read nval

1105

int nval = Bytes::get_Java_u2((address)buffer + index - 2);

1106

while (--nval >= 0 && index < limit) {

1107

index = skip_annotation_value(buffer, limit, index);

1108

}

1109

}

1110

break;

1111

case '@':

1112

index = skip_annotation(buffer, limit, index);

1113

break;

1114

default:

1115

return limit; // bad tag byte

1116

}

1117

return index;

1118

}

1119

1120

// Sift through annotations, looking for those significant to the VM:

1121

static void parse_annotations(const ConstantPool* const cp,

1122

const u1* buffer, int limit,

1123

AnnotationCollector* coll,

1124

ClassLoaderData* loader_data,

1125

const bool can_access_vm_annotations) {

1126

1127

assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1127, "assert(" "cp != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1128

assert(buffer != NULL, "invariant")do { if (!(buffer != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1128, "assert(" "buffer != __null" ") failed", "invariant")
; ::breakpoint(); } } while (0);

1129

assert(coll != NULL, "invariant")do { if (!(coll != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1129, "assert(" "coll != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1130

assert(loader_data != NULL, "invariant")do { if (!(loader_data != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1130, "assert(" "loader_data != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

1131

1132

// annotations := do(nann:u2) {annotation}

1133

int index = 2; // read nann

1134

if (index >= limit) return;

1135

int nann = Bytes::get_Java_u2((address)buffer + index - 2);

1136

enum { // initial annotation layout

1137

atype_off = 0, // utf8 such as 'Ljava/lang/annotation/Retention;'

1138

count_off = 2, // u2 such as 1 (one value)

1139

member_off = 4, // utf8 such as 'value'

1140

tag_off = 6, // u1 such as 'c' (type) or 'e' (enum)

1141

e_tag_val = 'e',

1142

e_type_off = 7, // utf8 such as 'Ljava/lang/annotation/RetentionPolicy;'

1143

e_con_off = 9, // utf8 payload, such as 'SOURCE', 'CLASS', 'RUNTIME'

1144

e_size = 11, // end of 'e' annotation

1145

c_tag_val = 'c', // payload is type

1146

c_con_off = 7, // utf8 payload, such as 'I'

1147

c_size = 9, // end of 'c' annotation

1148

s_tag_val = 's', // payload is String

1149

s_con_off = 7, // utf8 payload, such as 'Ljava/lang/String;'

1150

s_size = 9,

1151

min_size = 6 // smallest possible size (zero members)

1152

};

1153

// Cannot add min_size to index in case of overflow MAX_INT

1154

while ((--nann) >= 0 && (index - 2 <= limit - min_size)) {

1155

int index0 = index;

1156

index = skip_annotation(buffer, limit, index);

1157

const u1* const abase = buffer + index0;

1158

const int atype = Bytes::get_Java_u2((address)abase + atype_off);

1159

const int count = Bytes::get_Java_u2((address)abase + count_off);

1160

const Symbol* const aname = check_symbol_at(cp, atype);

1161

if (aname == NULL__null) break; // invalid annotation name

1162

const Symbol* member = NULL__null;

1163

if (count >= 1) {

1164

const int member_index = Bytes::get_Java_u2((address)abase + member_off);

1165

member = check_symbol_at(cp, member_index);

1166

if (member == NULL__null) break; // invalid member name

1167

}

1168

1169

// Here is where parsing particular annotations will take place.

1170

AnnotationCollector::ID id = coll->annotation_index(loader_data, aname, can_access_vm_annotations);

1171

if (AnnotationCollector::_unknown == id) continue;

1172

coll->set_annotation(id);

1173

1174

if (AnnotationCollector::_jdk_internal_vm_annotation_Contended == id) {

1175

// @Contended can optionally specify the contention group.

1176

//

1177

// Contended group defines the equivalence class over the fields:

1178

// the fields within the same contended group are not treated distinct.

1179

// The only exception is default group, which does not incur the

1180

// equivalence. Naturally, contention group for classes is meaningless.

1181

//

1182

// While the contention group is specified as String, annotation

1183

// values are already interned, and we might as well use the constant

1184

// pool index as the group tag.

1185

//

1186

u2 group_index = 0; // default contended group

1187

if (count == 1

1188

&& s_size == (index - index0) // match size

1189

&& s_tag_val == *(abase + tag_off)

1190

&& member == vmSymbols::value_name()) {

1191

group_index = Bytes::get_Java_u2((address)abase + s_con_off);

1192

if (cp->symbol_at(group_index)->utf8_length() == 0) {

1193

group_index = 0; // default contended group

1194

}

1195

}

1196

coll->set_contended_group(group_index);

1197

}

1198

}

1199

}

1200

1201

1202

// Parse attributes for a field.

1203

void ClassFileParser::parse_field_attributes(const ClassFileStream* const cfs,

1204

u2 attributes_count,

1205

bool is_static, u2 signature_index,

1206

u2* const constantvalue_index_addr,

1207

bool* const is_synthetic_addr,

1208

u2* const generic_signature_index_addr,

1209

ClassFileParser::FieldAnnotationCollector* parsed_annotations,

1210

TRAPSJavaThread* __the_thread__) {

1211

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1211, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1212

assert(constantvalue_index_addr != NULL, "invariant")do { if (!(constantvalue_index_addr != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1212, "assert(" "constantvalue_index_addr != __null" ") failed"
, "invariant"); ::breakpoint(); } } while (0);

1213

assert(is_synthetic_addr != NULL, "invariant")do { if (!(is_synthetic_addr != __null)) { (*g_assert_poison)
= 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1213, "assert(" "is_synthetic_addr != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

1214

assert(generic_signature_index_addr != NULL, "invariant")do { if (!(generic_signature_index_addr != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1214, "assert(" "generic_signature_index_addr != __null" ") failed"
, "invariant"); ::breakpoint(); } } while (0);

1215

assert(parsed_annotations != NULL, "invariant")do { if (!(parsed_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1215, "assert(" "parsed_annotations != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

1216

assert(attributes_count > 0, "attributes_count should be greater than 0")do { if (!(attributes_count > 0)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1216, "assert(" "attributes_count > 0" ") failed", "attributes_count should be greater than 0"
); ::breakpoint(); } } while (0);

1217

1218

u2 constantvalue_index = 0;

1219

u2 generic_signature_index = 0;

1220

bool is_synthetic = false;

1221

const u1* runtime_visible_annotations = NULL__null;

1222

int runtime_visible_annotations_length = 0;

1223

const u1* runtime_invisible_annotations = NULL__null;

1224

int runtime_invisible_annotations_length = 0;

1225

const u1* runtime_visible_type_annotations = NULL__null;

1226

int runtime_visible_type_annotations_length = 0;

1227

const u1* runtime_invisible_type_annotations = NULL__null;

1228

int runtime_invisible_type_annotations_length = 0;

1229

bool runtime_invisible_annotations_exists = false;

1230

bool runtime_invisible_type_annotations_exists = false;

1231

const ConstantPool* const cp = _cp;

1232

1233

while (attributes_count--) {

1234

cfs->guarantee_more(6, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // attribute_name_index, attribute_length

1235

const u2 attribute_name_index = cfs->get_u2_fast();

1236

const u4 attribute_length = cfs->get_u4_fast();

1237

check_property(valid_symbol_at(attribute_name_index),

1238

"Invalid field attribute index %u in class file %s",

1239

attribute_name_index,

1240

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1241

1242

const Symbol* const attribute_name = cp->symbol_at(attribute_name_index);

1243

if (is_static && attribute_name == vmSymbols::tag_constant_value()) {

1244

// ignore if non-static

1245

if (constantvalue_index != 0) {

1246

classfile_parse_error("Duplicate ConstantValue attribute in class file %s", THREAD__the_thread__);

1247

return;

1248

}

1249

check_property(

1250

attribute_length == 2,

1251

"Invalid ConstantValue field attribute length %u in class file %s",

1252

attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1253

1254

constantvalue_index = cfs->get_u2(CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1255

if (_need_verify) {

1256

verify_constantvalue(cp, constantvalue_index, signature_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1257

}

1258

} else if (attribute_name == vmSymbols::tag_synthetic()) {

1259

if (attribute_length != 0) {

1260

classfile_parse_error(

1261

"Invalid Synthetic field attribute length %u in class file %s",

1262

attribute_length, THREAD__the_thread__);

1263

return;

1264

}

1265

is_synthetic = true;

1266

} else if (attribute_name == vmSymbols::tag_deprecated()) { // 4276120

1267

if (attribute_length != 0) {

1268

classfile_parse_error(

1269

"Invalid Deprecated field attribute length %u in class file %s",

1270

attribute_length, THREAD__the_thread__);

1271

return;

1272

}

1273

} else if (_major_version >= JAVA_1_5_VERSION49) {

1274

if (attribute_name == vmSymbols::tag_signature()) {

1275

if (generic_signature_index != 0) {

1276

classfile_parse_error(

1277

"Multiple Signature attributes for field in class file %s", THREAD__the_thread__);

1278

return;

1279

}

1280

if (attribute_length != 2) {

1281

classfile_parse_error(

1282

"Wrong size %u for field's Signature attribute in class file %s",

1283

attribute_length, THREAD__the_thread__);

1284

return;

1285

}

1286

generic_signature_index = parse_generic_signature_attribute(cfs, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1287

} else if (attribute_name == vmSymbols::tag_runtime_visible_annotations()) {

1288

if (runtime_visible_annotations != NULL__null) {

1289

classfile_parse_error(

1290

"Multiple RuntimeVisibleAnnotations attributes for field in class file %s", THREAD__the_thread__);

1291

return;

1292

}

1293

runtime_visible_annotations_length = attribute_length;

1294

runtime_visible_annotations = cfs->current();

1295

assert(runtime_visible_annotations != NULL, "null visible annotations")do { if (!(runtime_visible_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1295, "assert(" "runtime_visible_annotations != __null" ") failed"
, "null visible annotations"); ::breakpoint(); } } while (0);

1296

cfs->guarantee_more(runtime_visible_annotations_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1297

parse_annotations(cp,

1298

runtime_visible_annotations,

1299

runtime_visible_annotations_length,

1300

parsed_annotations,

1301

_loader_data,

1302

_can_access_vm_annotations);

1303

cfs->skip_u1_fast(runtime_visible_annotations_length);

1304

} else if (attribute_name == vmSymbols::tag_runtime_invisible_annotations()) {

1305

if (runtime_invisible_annotations_exists) {

1306

classfile_parse_error(

1307

"Multiple RuntimeInvisibleAnnotations attributes for field in class file %s", THREAD__the_thread__);

1308

return;

1309

}

1310

runtime_invisible_annotations_exists = true;

1311

if (PreserveAllAnnotations) {

1312

runtime_invisible_annotations_length = attribute_length;

1313

runtime_invisible_annotations = cfs->current();

1314

assert(runtime_invisible_annotations != NULL, "null invisible annotations")do { if (!(runtime_invisible_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1314, "assert(" "runtime_invisible_annotations != __null" ") failed"
, "null invisible annotations"); ::breakpoint(); } } while (0
);

1315

}

1316

cfs->skip_u1(attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1317

} else if (attribute_name == vmSymbols::tag_runtime_visible_type_annotations()) {

1318

if (runtime_visible_type_annotations != NULL__null) {

1319

classfile_parse_error(

1320

"Multiple RuntimeVisibleTypeAnnotations attributes for field in class file %s", THREAD__the_thread__);

1321

return;

1322

}

1323

runtime_visible_type_annotations_length = attribute_length;

1324

runtime_visible_type_annotations = cfs->current();

1325

assert(runtime_visible_type_annotations != NULL, "null visible type annotations")do { if (!(runtime_visible_type_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1325, "assert(" "runtime_visible_type_annotations != __null"
") failed", "null visible type annotations"); ::breakpoint()
; } } while (0);

1326

cfs->skip_u1(runtime_visible_type_annotations_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1327

} else if (attribute_name == vmSymbols::tag_runtime_invisible_type_annotations()) {

1328

if (runtime_invisible_type_annotations_exists) {

1329

classfile_parse_error(

1330

"Multiple RuntimeInvisibleTypeAnnotations attributes for field in class file %s", THREAD__the_thread__);

1331

return;

1332

} else {

1333

runtime_invisible_type_annotations_exists = true;

1334

}

1335

if (PreserveAllAnnotations) {

1336

runtime_invisible_type_annotations_length = attribute_length;

1337

runtime_invisible_type_annotations = cfs->current();

1338

assert(runtime_invisible_type_annotations != NULL, "null invisible type annotations")do { if (!(runtime_invisible_type_annotations != __null)) { (
*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1338, "assert(" "runtime_invisible_type_annotations != __null"
") failed", "null invisible type annotations"); ::breakpoint
(); } } while (0);

1339

}

1340

cfs->skip_u1(attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1341

} else {

1342

cfs->skip_u1(attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // Skip unknown attributes

1343

}

1344

} else {

1345

cfs->skip_u1(attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // Skip unknown attributes

1346

}

1347

}

1348

1349

*constantvalue_index_addr = constantvalue_index;

1350

*is_synthetic_addr = is_synthetic;

1351

*generic_signature_index_addr = generic_signature_index;

1352

AnnotationArray* a = assemble_annotations(runtime_visible_annotations,

1353

runtime_visible_annotations_length,

1354

runtime_invisible_annotations,

1355

runtime_invisible_annotations_length,

1356

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1357

parsed_annotations->set_field_annotations(a);

1358

a = assemble_annotations(runtime_visible_type_annotations,

1359

runtime_visible_type_annotations_length,

1360

runtime_invisible_type_annotations,

1361

runtime_invisible_type_annotations_length,

1362

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1363

parsed_annotations->set_field_type_annotations(a);

1364

return;

1365

}

1366

1367

1368

// Field allocation types. Used for computing field offsets.

1369

1370

enum FieldAllocationType {

1371

STATIC_OOP, // Oops

1372

STATIC_BYTE, // Boolean, Byte, char

1373

STATIC_SHORT, // shorts

1374

STATIC_WORD, // ints

1375

STATIC_DOUBLE, // aligned long or double

1376

NONSTATIC_OOP,

1377

NONSTATIC_BYTE,

1378

NONSTATIC_SHORT,

1379

NONSTATIC_WORD,

1380

NONSTATIC_DOUBLE,

1381

MAX_FIELD_ALLOCATION_TYPE,

1382

BAD_ALLOCATION_TYPE = -1

1383

};

1384

1385

static FieldAllocationType _basic_type_to_atype[2 * (T_CONFLICT + 1)] = {

1386

BAD_ALLOCATION_TYPE, // 0

1387

BAD_ALLOCATION_TYPE, // 1

1388

BAD_ALLOCATION_TYPE, // 2

1389

BAD_ALLOCATION_TYPE, // 3

1390

NONSTATIC_BYTE , // T_BOOLEAN = 4,

1391

NONSTATIC_SHORT, // T_CHAR = 5,

1392

NONSTATIC_WORD, // T_FLOAT = 6,

1393

NONSTATIC_DOUBLE, // T_DOUBLE = 7,

1394

NONSTATIC_BYTE, // T_BYTE = 8,

1395

NONSTATIC_SHORT, // T_SHORT = 9,

1396

NONSTATIC_WORD, // T_INT = 10,

1397

NONSTATIC_DOUBLE, // T_LONG = 11,

1398

NONSTATIC_OOP, // T_OBJECT = 12,

1399

NONSTATIC_OOP, // T_ARRAY = 13,

1400

BAD_ALLOCATION_TYPE, // T_VOID = 14,

1401

BAD_ALLOCATION_TYPE, // T_ADDRESS = 15,

1402

BAD_ALLOCATION_TYPE, // T_NARROWOOP = 16,

1403

BAD_ALLOCATION_TYPE, // T_METADATA = 17,

1404

BAD_ALLOCATION_TYPE, // T_NARROWKLASS = 18,

1405

BAD_ALLOCATION_TYPE, // T_CONFLICT = 19,

1406

BAD_ALLOCATION_TYPE, // 0

1407

BAD_ALLOCATION_TYPE, // 1

1408

BAD_ALLOCATION_TYPE, // 2

1409

BAD_ALLOCATION_TYPE, // 3

1410

STATIC_BYTE , // T_BOOLEAN = 4,

1411

STATIC_SHORT, // T_CHAR = 5,

1412

STATIC_WORD, // T_FLOAT = 6,

1413

STATIC_DOUBLE, // T_DOUBLE = 7,

1414

STATIC_BYTE, // T_BYTE = 8,

1415

STATIC_SHORT, // T_SHORT = 9,

1416

STATIC_WORD, // T_INT = 10,

1417

STATIC_DOUBLE, // T_LONG = 11,

1418

STATIC_OOP, // T_OBJECT = 12,

1419

STATIC_OOP, // T_ARRAY = 13,

1420

BAD_ALLOCATION_TYPE, // T_VOID = 14,

1421

BAD_ALLOCATION_TYPE, // T_ADDRESS = 15,

1422

BAD_ALLOCATION_TYPE, // T_NARROWOOP = 16,

1423

BAD_ALLOCATION_TYPE, // T_METADATA = 17,

1424

BAD_ALLOCATION_TYPE, // T_NARROWKLASS = 18,

1425

BAD_ALLOCATION_TYPE, // T_CONFLICT = 19,

1426

};

1427

1428

static FieldAllocationType basic_type_to_atype(bool is_static, BasicType type) {

1429

assert(type >= T_BOOLEAN && type < T_VOID, "only allowable values")do { if (!(type >= T_BOOLEAN && type < T_VOID))
{ (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1429, "assert(" "type >= T_BOOLEAN && type < T_VOID"
") failed", "only allowable values"); ::breakpoint(); } } while
(0);

1430

FieldAllocationType result = _basic_type_to_atype[type + (is_static ? (T_CONFLICT + 1) : 0)];

1431

assert(result != BAD_ALLOCATION_TYPE, "bad type")do { if (!(result != BAD_ALLOCATION_TYPE)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1431, "assert(" "result != BAD_ALLOCATION_TYPE" ") failed",
"bad type"); ::breakpoint(); } } while (0);

1432

return result;

1433

}

1434

1435

class ClassFileParser::FieldAllocationCount : public ResourceObj {

1436

public:

1437

u2 count[MAX_FIELD_ALLOCATION_TYPE];

1438

1439

FieldAllocationCount() {

1440

for (int i = 0; i < MAX_FIELD_ALLOCATION_TYPE; i++) {

1441

count[i] = 0;

1442

}

1443

}

1444

1445

void update(bool is_static, BasicType type) {

1446

FieldAllocationType atype = basic_type_to_atype(is_static, type);

1447

if (atype != BAD_ALLOCATION_TYPE) {

1448

// Make sure there is no overflow with injected fields.

1449

assert(count[atype] < 0xFFFF, "More than 65535 fields")do { if (!(count[atype] < 0xFFFF)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1449, "assert(" "count[atype] < 0xFFFF" ") failed", "More than 65535 fields"
); ::breakpoint(); } } while (0);

1450

count[atype]++;

1451

}

1452

}

1453

};

1454

1455

// Side-effects: populates the _fields, _fields_annotations,

1456

// _fields_type_annotations fields

1457

void ClassFileParser::parse_fields(const ClassFileStream* const cfs,

1458

bool is_interface,

1459

FieldAllocationCount* const fac,

1460

ConstantPool* cp,

1461

const int cp_size,

1462

u2* const java_fields_count_ptr,

1463

TRAPSJavaThread* __the_thread__) {

1464

1465

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1465, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1466

assert(fac != NULL, "invariant")do { if (!(fac != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1466, "assert(" "fac != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1467

assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1467, "assert(" "cp != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1468

assert(java_fields_count_ptr != NULL, "invariant")do { if (!(java_fields_count_ptr != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1468, "assert(" "java_fields_count_ptr != __null" ") failed"
, "invariant"); ::breakpoint(); } } while (0);

1469

1470

assert(NULL == _fields, "invariant")do { if (!(__null == _fields)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1470, "assert(" "__null == _fields" ") failed", "invariant"
); ::breakpoint(); } } while (0);

1471

assert(NULL == _fields_annotations, "invariant")do { if (!(__null == _fields_annotations)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1471, "assert(" "__null == _fields_annotations" ") failed",
"invariant"); ::breakpoint(); } } while (0);

1472

assert(NULL == _fields_type_annotations, "invariant")do { if (!(__null == _fields_type_annotations)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1472, "assert(" "__null == _fields_type_annotations" ") failed"
, "invariant"); ::breakpoint(); } } while (0);

1473

1474

cfs->guarantee_more(2, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // length

1475

const u2 length = cfs->get_u2_fast();

1476

*java_fields_count_ptr = length;

1477

1478

int num_injected = 0;

1479

const InjectedField* const injected = JavaClasses::get_injected(_class_name,

1480

&num_injected);

1481

const int total_fields = length + num_injected;

1482

1483

// The field array starts with tuples of shorts

1484

// [access, name index, sig index, initial value index, byte offset].

1485

// A generic signature slot only exists for field with generic

1486

// signature attribute. And the access flag is set with

1487

// JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE for that field. The generic

1488

// signature slots are at the end of the field array and after all

1489

// other fields data.

1490

//

1491

// f1: [access, name index, sig index, initial value index, low_offset, high_offset]

1492

// f2: [access, name index, sig index, initial value index, low_offset, high_offset]

1493

// ...

1494

// fn: [access, name index, sig index, initial value index, low_offset, high_offset]

1495

// [generic signature index]

1496

// [generic signature index]

1497

// ...

1498

//

1499

// Allocate a temporary resource array for field data. For each field,

1500

// a slot is reserved in the temporary array for the generic signature

1501

// index. After parsing all fields, the data are copied to a permanent

1502

// array and any unused slots will be discarded.

1503

ResourceMark rm(THREAD__the_thread__);

1504

u2* const fa = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD,(u2*) resource_allocate_bytes(__the_thread__, (total_fields *
(FieldInfo::field_slots + 1)) * sizeof(u2))

1505

u2,(u2*) resource_allocate_bytes(__the_thread__, (total_fields *
(FieldInfo::field_slots + 1)) * sizeof(u2))

1506

total_fields * (FieldInfo::field_slots + 1))(u2*) resource_allocate_bytes(__the_thread__, (total_fields *
(FieldInfo::field_slots + 1)) * sizeof(u2));

1507

1508

// The generic signature slots start after all other fields' data.

1509

int generic_signature_slot = total_fields * FieldInfo::field_slots;

1510

int num_generic_signature = 0;

1511

for (int n = 0; n < length; n++) {

1512

// access_flags, name_index, descriptor_index, attributes_count

1513

cfs->guarantee_more(8, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1514

1515

AccessFlags access_flags;

1516

1517

verify_legal_field_modifiers(flags, is_interface, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1518

access_flags.set_flags(flags);

1519

1520

const u2 name_index = cfs->get_u2_fast();

1521

check_property(valid_symbol_at(name_index),

1522

"Invalid constant pool index %u for field name in class file %s",

1523

name_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1524

const Symbol* const name = cp->symbol_at(name_index);

1525

verify_legal_field_name(name, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1526

1527

const u2 signature_index = cfs->get_u2_fast();

1528

check_property(valid_symbol_at(signature_index),

1529

"Invalid constant pool index %u for field signature in class file %s",

1530

signature_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1531

const Symbol* const sig = cp->symbol_at(signature_index);

1532

verify_legal_field_signature(name, sig, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1533

1534

u2 constantvalue_index = 0;

1535

bool is_synthetic = false;

1536

u2 generic_signature_index = 0;

1537

const bool is_static = access_flags.is_static();

1538

FieldAnnotationCollector parsed_annotations(_loader_data);

1539

1540

const u2 attributes_count = cfs->get_u2_fast();

1541

if (attributes_count > 0) {

1542

parse_field_attributes(cfs,

1543

attributes_count,

1544

is_static,

1545

signature_index,

1546

&constantvalue_index,

1547

&is_synthetic,

1548

&generic_signature_index,

1549

&parsed_annotations,

1550

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1551

1552

if (parsed_annotations.field_annotations() != NULL__null) {

1553

if (_fields_annotations == NULL__null) {

1554

_fields_annotations = MetadataFactory::new_array<AnnotationArray*>(

1555

_loader_data, length, NULL__null,

1556

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1557

}

1558

_fields_annotations->at_put(n, parsed_annotations.field_annotations());

1559

parsed_annotations.set_field_annotations(NULL__null);

1560

}

1561

if (parsed_annotations.field_type_annotations() != NULL__null) {

1562

if (_fields_type_annotations == NULL__null) {

1563

_fields_type_annotations =

1564

MetadataFactory::new_array<AnnotationArray*>(_loader_data,

1565

length,

1566

NULL__null,

1567

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1568

}

1569

_fields_type_annotations->at_put(n, parsed_annotations.field_type_annotations());

1570

parsed_annotations.set_field_type_annotations(NULL__null);

1571

}

1572

1573

if (is_synthetic) {

1574

access_flags.set_is_synthetic();

1575

}

1576

if (generic_signature_index != 0) {

1577

access_flags.set_field_has_generic_signature();

1578

fa[generic_signature_slot] = generic_signature_index;

1579

generic_signature_slot ++;

1580

num_generic_signature ++;

1581

}

1582

}

1583

1584

FieldInfo* const field = FieldInfo::from_field_array(fa, n);

1585

field->initialize(access_flags.as_short(),

1586

name_index,

1587

signature_index,

1588

constantvalue_index);

1589

const BasicType type = cp->basic_type_for_signature_at(signature_index);

1590

1591

// Update FieldAllocationCount for this kind of field

1592

fac->update(is_static, type);

1593

1594

// After field is initialized with type, we can augment it with aux info

1595

if (parsed_annotations.has_any_annotations()) {

1596

parsed_annotations.apply_to(field);

1597

if (field->is_contended()) {

1598

_has_contended_fields = true;

1599

}

1600

}

1601

}

1602

1603

int index = length;

1604

if (num_injected != 0) {

1605

for (int n = 0; n < num_injected; n++) {

1606

// Check for duplicates

1607

if (injected[n].may_be_java) {

1608

const Symbol* const name = injected[n].name();

1609

const Symbol* const signature = injected[n].signature();

1610

bool duplicate = false;

1611

for (int i = 0; i < length; i++) {

1612

const FieldInfo* const f = FieldInfo::from_field_array(fa, i);

1613

if (name == cp->symbol_at(f->name_index()) &&

1614

signature == cp->symbol_at(f->signature_index())) {

1615

// Symbol is desclared in Java so skip this one

1616

duplicate = true;

1617

break;

1618

}

1619

}

1620

if (duplicate) {

1621

// These will be removed from the field array at the end

1622

continue;

1623

}

1624

}

1625

1626

// Injected field

1627

FieldInfo* const field = FieldInfo::from_field_array(fa, index);

1628

field->initialize((u2)JVM_ACC_FIELD_INTERNAL,

1629

(u2)(injected[n].name_index),

1630

(u2)(injected[n].signature_index),

1631

0);

1632

1633

const BasicType type = Signature::basic_type(injected[n].signature());

1634

1635

// Update FieldAllocationCount for this kind of field

1636

fac->update(false, type);

1637

index++;

1638

}

1639

}

1640

1641

assert(NULL == _fields, "invariant")do { if (!(__null == _fields)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1641, "assert(" "__null == _fields" ") failed", "invariant"
); ::breakpoint(); } } while (0);

1642

1643

_fields =

1644

MetadataFactory::new_array<u2>(_loader_data,

1645

index * FieldInfo::field_slots + num_generic_signature,

1646

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1647

// Sometimes injected fields already exist in the Java source so

1648

// the fields array could be too long. In that case the

1649

// fields array is trimed. Also unused slots that were reserved

1650

// for generic signature indexes are discarded.

1651

{

1652

int i = 0;

1653

for (; i < index * FieldInfo::field_slots; i++) {

1654

_fields->at_put(i, fa[i]);

1655

}

1656

for (int j = total_fields * FieldInfo::field_slots;

1657

j < generic_signature_slot; j++) {

1658

_fields->at_put(i++, fa[j]);

1659

}

1660

assert(_fields->length() == i, "")do { if (!(_fields->length() == i)) { (*g_assert_poison) =
'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1660, "assert(" "_fields->length() == i" ") failed", "")
; ::breakpoint(); } } while (0);

1661

}

1662

1663

if (_need_verify && length > 1) {

1664

// Check duplicated fields

1665

ResourceMark rm(THREAD__the_thread__);

1666

NameSigHash** names_and_sigs = NEW_RESOURCE_ARRAY_IN_THREAD((NameSigHash**) resource_allocate_bytes(__the_thread__, (HASH_ROW_SIZE
) * sizeof(NameSigHash*))

1667

THREAD, NameSigHash*, HASH_ROW_SIZE)(NameSigHash**) resource_allocate_bytes(__the_thread__, (HASH_ROW_SIZE
) * sizeof(NameSigHash*));

1668

initialize_hashtable(names_and_sigs);

1669

bool dup = false;

1670

const Symbol* name = NULL__null;

1671

const Symbol* sig = NULL__null;

1672

{

1673

debug_only(NoSafepointVerifier nsv;)NoSafepointVerifier nsv;

1674

for (AllFieldStream fs(_fields, cp); !fs.done(); fs.next()) {

1675

name = fs.name();

1676

sig = fs.signature();

1677

// If no duplicates, add name/signature in hashtable names_and_sigs.

1678

if (!put_after_lookup(name, sig, names_and_sigs)) {

1679

dup = true;

1680

break;

1681

}

1682

}

1683

}

1684

if (dup) {

1685

classfile_parse_error("Duplicate field name \"%s\" with signature \"%s\" in class file %s",

1686

name->as_C_string(), sig->as_klass_external_name(), THREAD__the_thread__);

1687

}

1688

}

1689

}

1690

1691

1692

const ClassFileParser::unsafe_u2* ClassFileParser::parse_exception_table(const ClassFileStream* const cfs,

1693

u4 code_length,

1694

u4 exception_table_length,

1695

TRAPSJavaThread* __the_thread__) {

1696

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1696, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1697

1698

const unsafe_u2* const exception_table_start = cfs->current();

1699

assert(exception_table_start != NULL, "null exception table")do { if (!(exception_table_start != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1699, "assert(" "exception_table_start != __null" ") failed"
, "null exception table"); ::breakpoint(); } } while (0);

1700

1701

cfs->guarantee_more(8 * exception_table_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0); // start_pc,

1702

// end_pc,

1703

// handler_pc,

1704

// catch_type_index

1705

1706

// Will check legal target after parsing code array in verifier.

1707

if (_need_verify) {

1708

for (unsigned int i = 0; i < exception_table_length; i++) {

1709

const u2 start_pc = cfs->get_u2_fast();

1710

const u2 end_pc = cfs->get_u2_fast();

1711

const u2 handler_pc = cfs->get_u2_fast();

1712

const u2 catch_type_index = cfs->get_u2_fast();

1713

guarantee_property((start_pc < end_pc) && (end_pc <= code_length),

1714

"Illegal exception table range in class file %s",

1715

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1716

guarantee_property(handler_pc < code_length,

1717

"Illegal exception table handler in class file %s",

1718

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1719

if (catch_type_index != 0) {

1720

guarantee_property(valid_klass_reference_at(catch_type_index),

1721

"Catch type in exception table has bad constant type in class file %s", CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1722

}

1723

}

1724

} else {

1725

cfs->skip_u2_fast(exception_table_length * 4);

1726

}

1727

return exception_table_start;

1728

}

1729

1730

void ClassFileParser::parse_linenumber_table(u4 code_attribute_length,

1731

u4 code_length,

1732

CompressedLineNumberWriteStream**const write_stream,

1733

TRAPSJavaThread* __the_thread__) {

1734

1735

const ClassFileStream* const cfs = _stream;

1736

unsigned int num_entries = cfs->get_u2(CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1737

1738

// Each entry is a u2 start_pc, and a u2 line_number

1739

const unsigned int length_in_bytes = num_entries * (sizeof(u2) * 2);

1740

1741

// Verify line number attribute and table length

1742

check_property(

1743

code_attribute_length == sizeof(u2) + length_in_bytes,

1744

"LineNumberTable attribute has wrong length in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1745

1746

cfs->guarantee_more(length_in_bytes, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1747

1748

if ((*write_stream) == NULL__null) {

1749

if (length_in_bytes > fixed_buffer_size) {

1750

(*write_stream) = new CompressedLineNumberWriteStream(length_in_bytes);

1751

} else {

1752

(*write_stream) = new CompressedLineNumberWriteStream(

1753

_linenumbertable_buffer, fixed_buffer_size);

1754

}

1755

}

1756

1757

while (num_entries-- > 0) {

1758

const u2 bci = cfs->get_u2_fast(); // start_pc

1759

const u2 line = cfs->get_u2_fast(); // line_number

1760

guarantee_property(bci < code_length,

1761

"Invalid pc in LineNumberTable in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

1762

(*write_stream)->write_pair(bci, line);

1763

}

1764

}

1765

1766

1767

class LVT_Hash : public AllStatic {

1768

public:

1769

1770

static bool equals(LocalVariableTableElement const& e0, LocalVariableTableElement const& e1) {

1771

/*

1772

* 3-tuple start_bci/length/slot has to be unique key,

1773

* so the following comparison seems to be redundant:

1774

* && elem->name_cp_index == entry->_elem->name_cp_index

1775

*/

1776

return (e0.start_bci == e1.start_bci &&

1777

e0.length == e1.length &&

1778

e0.name_cp_index == e1.name_cp_index &&

1779

e0.slot == e1.slot);

1780

}

1781

1782

static unsigned int hash(LocalVariableTableElement const& e0) {

1783

unsigned int raw_hash = e0.start_bci;

1784

1785

raw_hash = e0.length + raw_hash * 37;

1786

raw_hash = e0.name_cp_index + raw_hash * 37;

1787

raw_hash = e0.slot + raw_hash * 37;

1788

1789

return raw_hash;

1790

}

1791

};

1792

1793

1794

// Class file LocalVariableTable elements.

1795

class Classfile_LVT_Element {

1796

public:

1797

u2 start_bci;

1798

u2 length;

1799

u2 name_cp_index;

1800

u2 descriptor_cp_index;

1801

u2 slot;

1802

};

1803

1804

static void copy_lvt_element(const Classfile_LVT_Element* const src,

1805

LocalVariableTableElement* const lvt) {

1806

lvt->start_bci = Bytes::get_Java_u2((u1*) &src->start_bci);

1807

lvt->length = Bytes::get_Java_u2((u1*) &src->length);

1808

lvt->name_cp_index = Bytes::get_Java_u2((u1*) &src->name_cp_index);

1809

lvt->descriptor_cp_index = Bytes::get_Java_u2((u1*) &src->descriptor_cp_index);

1810

lvt->signature_cp_index = 0;

1811

lvt->slot = Bytes::get_Java_u2((u1*) &src->slot);

1812

}

1813

1814

// Function is used to parse both attributes:

1815

// LocalVariableTable (LVT) and LocalVariableTypeTable (LVTT)

1816

const ClassFileParser::unsafe_u2* ClassFileParser::parse_localvariable_table(const ClassFileStream* cfs,

1817

u4 code_length,

1818

u2 max_locals,

1819

u4 code_attribute_length,

1820

u2* const localvariable_table_length,

1821

bool isLVTT,

1822

TRAPSJavaThread* __the_thread__) {

1823

const char* const tbl_name = (isLVTT) ? "LocalVariableTypeTable" : "LocalVariableTable";

1824

*localvariable_table_length = cfs->get_u2(CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1825

const unsigned int size =

1826

(*localvariable_table_length) * sizeof(Classfile_LVT_Element) / sizeof(u2);

1827

1828

const ConstantPool* const cp = _cp;

1829

1830

// Verify local variable table attribute has right length

1831

if (_need_verify) {

1832

guarantee_property(code_attribute_length == (sizeof(*localvariable_table_length) + size * sizeof(u2)),

1833

"%s has wrong length in class file %s", tbl_name, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1834

}

1835

1836

const unsafe_u2* const localvariable_table_start = cfs->current();

1837

assert(localvariable_table_start != NULL, "null local variable table")do { if (!(localvariable_table_start != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1837, "assert(" "localvariable_table_start != __null" ") failed"
, "null local variable table"); ::breakpoint(); } } while (0);

1838

if (!_need_verify) {

1839

cfs->skip_u2_fast(size);

1840

} else {

1841

cfs->guarantee_more(size * 2, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1842

for(int i = 0; i < (*localvariable_table_length); i++) {

1843

const u2 start_pc = cfs->get_u2_fast();

1844

const u2 length = cfs->get_u2_fast();

1845

const u2 name_index = cfs->get_u2_fast();

1846

const u2 descriptor_index = cfs->get_u2_fast();

1847

const u2 index = cfs->get_u2_fast();

1848

// Assign to a u4 to avoid overflow

1849

const u4 end_pc = (u4)start_pc + (u4)length;

1850

1851

if (start_pc >= code_length) {

1852

classfile_parse_error(

1853

"Invalid start_pc %u in %s in class file %s",

1854

start_pc, tbl_name, THREAD__the_thread__);

1855

return NULL__null;

1856

}

1857

if (end_pc > code_length) {

1858

classfile_parse_error(

1859

"Invalid length %u in %s in class file %s",

1860

length, tbl_name, THREAD__the_thread__);

1861

return NULL__null;

1862

}

1863

const int cp_size = cp->length();

1864

guarantee_property(valid_symbol_at(name_index),

1865

"Name index %u in %s has bad constant type in class file %s",

1866

name_index, tbl_name, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1867

guarantee_property(valid_symbol_at(descriptor_index),

1868

"Signature index %u in %s has bad constant type in class file %s",

1869

descriptor_index, tbl_name, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1870

1871

const Symbol* const name = cp->symbol_at(name_index);

1872

const Symbol* const sig = cp->symbol_at(descriptor_index);

1873

verify_legal_field_name(name, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1874

u2 extra_slot = 0;

1875

if (!isLVTT) {

1876

verify_legal_field_signature(name, sig, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1877

1878

// 4894874: check special cases for double and long local variables

1879

if (sig == vmSymbols::type_signature(T_DOUBLE) ||

1880

sig == vmSymbols::type_signature(T_LONG)) {

1881

extra_slot = 1;

1882

}

1883

}

1884

guarantee_property((index + extra_slot) < max_locals,

1885

"Invalid index %u in %s in class file %s",

1886

index, tbl_name, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1887

}

1888

}

1889

return localvariable_table_start;

1890

}

1891

1892

static const u1* parse_stackmap_table(const ClassFileStream* const cfs,

1893

u4 code_attribute_length,

1894

bool need_verify,

1895

TRAPSJavaThread* __the_thread__) {

1896

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1896, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1897

1898

if (0 == code_attribute_length) {

1899

return NULL__null;

1900

}

1901

1902

const u1* const stackmap_table_start = cfs->current();

1903

assert(stackmap_table_start != NULL, "null stackmap table")do { if (!(stackmap_table_start != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1903, "assert(" "stackmap_table_start != __null" ") failed"
, "null stackmap table"); ::breakpoint(); } } while (0);

1904

1905

// check code_attribute_length first

1906

cfs->skip_u1(code_attribute_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1907

1908

if (!need_verify && !DumpSharedSpaces) {

1909

return NULL__null;

1910

}

1911

return stackmap_table_start;

1912

}

1913

1914

const ClassFileParser::unsafe_u2* ClassFileParser::parse_checked_exceptions(const ClassFileStream* const cfs,

1915

u2* const checked_exceptions_length,

1916

u4 method_attribute_length,

1917

TRAPSJavaThread* __the_thread__) {

1918

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1918, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1919

assert(checked_exceptions_length != NULL, "invariant")do { if (!(checked_exceptions_length != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1919, "assert(" "checked_exceptions_length != __null" ") failed"
, "invariant"); ::breakpoint(); } } while (0);

1920

1921

cfs->guarantee_more(2, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0); // checked_exceptions_length

1922

*checked_exceptions_length = cfs->get_u2_fast();

1923

const unsigned int size =

1924

(*checked_exceptions_length) * sizeof(CheckedExceptionElement) / sizeof(u2);

1925

const unsafe_u2* const checked_exceptions_start = cfs->current();

1926

assert(checked_exceptions_start != NULL, "null checked exceptions")do { if (!(checked_exceptions_start != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1926, "assert(" "checked_exceptions_start != __null" ") failed"
, "null checked exceptions"); ::breakpoint(); } } while (0);

1927

if (!_need_verify) {

1928

cfs->skip_u2_fast(size);

1929

} else {

1930

// Verify each value in the checked exception table

1931

u2 checked_exception;

1932

const u2 len = *checked_exceptions_length;

1933

cfs->guarantee_more(2 * len, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1934

for (int i = 0; i < len; i++) {

1935

checked_exception = cfs->get_u2_fast();

1936

check_property(

1937

valid_klass_reference_at(checked_exception),

1938

"Exception name has bad type at constant pool %u in class file %s",

1939

checked_exception, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1940

}

1941

}

1942

// check exceptions attribute length

1943

if (_need_verify) {

1944

guarantee_property(method_attribute_length == (sizeof(*checked_exceptions_length) +

1945

sizeof(u2) * size),

1946

"Exceptions attribute has wrong length in class file %s", CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

1947

}

1948

return checked_exceptions_start;

1949

}

1950

1951

void ClassFileParser::throwIllegalSignature(const char* type,

1952

const Symbol* name,

1953

const Symbol* sig,

1954

TRAPSJavaThread* __the_thread__) const {

1955

assert(name != NULL, "invariant")do { if (!(name != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1955, "assert(" "name != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1956

assert(sig != NULL, "invariant")do { if (!(sig != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1956, "assert(" "sig != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

1957

1958

ResourceMark rm(THREAD__the_thread__);

1959

Exceptions::fthrow(THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 1959,

1960

vmSymbols::java_lang_ClassFormatError(),

1961

"%s \"%s\" in class %s has illegal signature \"%s\"", type,

1962

name->as_C_string(), _class_name->as_C_string(), sig->as_C_string());

1963

}

1964

1965

AnnotationCollector::ID

1966

AnnotationCollector::annotation_index(const ClassLoaderData* loader_data,

1967

const Symbol* name,

1968

const bool can_access_vm_annotations) {

1969

const vmSymbolID sid = vmSymbols::find_sid(name);

1970

// Privileged code can use all annotations. Other code silently drops some.

1971

const bool privileged = loader_data->is_boot_class_loader_data() ||

1972

loader_data->is_platform_class_loader_data() ||

1973

can_access_vm_annotations;

1974

switch (sid) {

1975

case VM_SYMBOL_ENUM_NAME(reflect_CallerSensitive_signature)vmSymbolID::reflect_CallerSensitive_signature_enum: {

1976

if (_location != _in_method) break; // only allow for methods

1977

if (!privileged) break; // only allow in privileged code

1978

return _method_CallerSensitive;

1979

}

1980

case VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_ForceInline_signature)vmSymbolID::jdk_internal_vm_annotation_ForceInline_signature_enum: {

1981

if (_location != _in_method) break; // only allow for methods

1982

if (!privileged) break; // only allow in privileged code

1983

return _method_ForceInline;

1984

}

1985

case VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_DontInline_signature)vmSymbolID::jdk_internal_vm_annotation_DontInline_signature_enum: {

1986

if (_location != _in_method) break; // only allow for methods

1987

if (!privileged) break; // only allow in privileged code

1988

return _method_DontInline;

1989

}

1990

case VM_SYMBOL_ENUM_NAME(java_lang_invoke_InjectedProfile_signature)vmSymbolID::java_lang_invoke_InjectedProfile_signature_enum: {

1991

if (_location != _in_method) break; // only allow for methods

1992

if (!privileged) break; // only allow in privileged code

1993

return _method_InjectedProfile;

1994

}

1995

case VM_SYMBOL_ENUM_NAME(java_lang_invoke_LambdaForm_Compiled_signature)vmSymbolID::java_lang_invoke_LambdaForm_Compiled_signature_enum: {

1996

if (_location != _in_method) break; // only allow for methods

1997

if (!privileged) break; // only allow in privileged code

1998

return _method_LambdaForm_Compiled;

1999

}

2000

case VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_Hidden_signature)vmSymbolID::jdk_internal_vm_annotation_Hidden_signature_enum: {

2001

if (_location != _in_method) break; // only allow for methods

2002

if (!privileged) break; // only allow in privileged code

2003

return _method_Hidden;

2004

}

2005

case VM_SYMBOL_ENUM_NAME(jdk_internal_misc_Scoped_signature)vmSymbolID::jdk_internal_misc_Scoped_signature_enum: {

2006

if (_location != _in_method) break; // only allow for methods

2007

if (!privileged) break; // only allow in privileged code

2008

return _method_Scoped;

2009

}

2010

case VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_IntrinsicCandidate_signature)vmSymbolID::jdk_internal_vm_annotation_IntrinsicCandidate_signature_enum: {

2011

if (_location != _in_method) break; // only allow for methods

2012

if (!privileged) break; // only allow in privileged code

2013

return _method_IntrinsicCandidate;

2014

}

2015

case VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_Stable_signature)vmSymbolID::jdk_internal_vm_annotation_Stable_signature_enum: {

2016

if (_location != _in_field) break; // only allow for fields

2017

if (!privileged) break; // only allow in privileged code

2018

return _field_Stable;

2019

}

2020

case VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_Contended_signature)vmSymbolID::jdk_internal_vm_annotation_Contended_signature_enum: {

2021

if (_location != _in_field && _location != _in_class) {

2022

break; // only allow for fields and classes

2023

}

2024

if (!EnableContended || (RestrictContended && !privileged)) {

2025

break; // honor privileges

2026

}

2027

return _jdk_internal_vm_annotation_Contended;

2028

}

2029

case VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_ReservedStackAccess_signature)vmSymbolID::jdk_internal_vm_annotation_ReservedStackAccess_signature_enum: {

2030

if (_location != _in_method) break; // only allow for methods

2031

if (RestrictReservedStack && !privileged) break; // honor privileges

2032

return _jdk_internal_vm_annotation_ReservedStackAccess;

2033

}

2034

case VM_SYMBOL_ENUM_NAME(jdk_internal_ValueBased_signature)vmSymbolID::jdk_internal_ValueBased_signature_enum: {

2035

if (_location != _in_class) break; // only allow for classes

2036

if (!privileged) break; // only allow in priviledged code

2037

return _jdk_internal_ValueBased;

2038

}

2039

default: {

2040

break;

2041

}

2042

}

2043

return AnnotationCollector::_unknown;

2044

}

2045

2046

void ClassFileParser::FieldAnnotationCollector::apply_to(FieldInfo* f) {

2047

if (is_contended())

2048

f->set_contended_group(contended_group());

2049

if (is_stable())

2050

f->set_stable(true);

2051

}

2052

2053

ClassFileParser::FieldAnnotationCollector::~FieldAnnotationCollector() {

2054

// If there's an error deallocate metadata for field annotations

2055

MetadataFactory::free_array<u1>(_loader_data, _field_annotations);

2056

MetadataFactory::free_array<u1>(_loader_data, _field_type_annotations);

2057

}

2058

2059

void MethodAnnotationCollector::apply_to(const methodHandle& m) {

2060

if (has_annotation(_method_CallerSensitive))

2061

m->set_caller_sensitive(true);

2062

if (has_annotation(_method_ForceInline))

2063

m->set_force_inline(true);

2064

if (has_annotation(_method_DontInline))

2065

m->set_dont_inline(true);

2066

if (has_annotation(_method_InjectedProfile))

2067

m->set_has_injected_profile(true);

2068

if (has_annotation(_method_LambdaForm_Compiled) && m->intrinsic_id() == vmIntrinsics::_none)

2069

m->set_intrinsic_id(vmIntrinsics::_compiledLambdaForm);

2070

if (has_annotation(_method_Hidden))

2071

m->set_hidden(true);

2072

if (has_annotation(_method_Scoped))

2073

m->set_scoped(true);

2074

if (has_annotation(_method_IntrinsicCandidate) && !m->is_synthetic())

2075

m->set_intrinsic_candidate(true);

2076

if (has_annotation(_jdk_internal_vm_annotation_ReservedStackAccess))

2077

m->set_has_reserved_stack_access(true);

2078

}

2079

2080

void ClassFileParser::ClassAnnotationCollector::apply_to(InstanceKlass* ik) {

2081

assert(ik != NULL, "invariant")do { if (!(ik != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2081, "assert(" "ik != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

2082

if (has_annotation(_jdk_internal_vm_annotation_Contended)) {

2083

ik->set_is_contended(is_contended());

2084

}

2085

if (has_annotation(_jdk_internal_ValueBased)) {

2086

ik->set_has_value_based_class_annotation();

2087

if (DiagnoseSyncOnValueBasedClasses) {

2088

ik->set_is_value_based();

2089

}

2090

}

2091

}

2092

2093

#define MAX_ARGS_SIZE255 255

2094

#define MAX_CODE_SIZE65535 65535

2095

#define INITIAL_MAX_LVT_NUMBER256 256

2096

2097

/* Copy class file LVT's/LVTT's into the HotSpot internal LVT.

2098

*

2099

* Rules for LVT's and LVTT's are:

2100

* - There can be any number of LVT's and LVTT's.

2101

* - If there are n LVT's, it is the same as if there was just

2102

* one LVT containing all the entries from the n LVT's.

2103

* - There may be no more than one LVT entry per local variable.

2104

* Two LVT entries are 'equal' if these fields are the same:

2105

* start_pc, length, name, slot

2106

* - There may be no more than one LVTT entry per each LVT entry.

2107

* Each LVTT entry has to match some LVT entry.

2108

* - HotSpot internal LVT keeps natural ordering of class file LVT entries.

2109

*/

2110

void ClassFileParser::copy_localvariable_table(const ConstMethod* cm,

2111

int lvt_cnt,

2112

u2* const localvariable_table_length,

2113

const unsafe_u2** const localvariable_table_start,

2114

int lvtt_cnt,

2115

u2* const localvariable_type_table_length,

2116

const unsafe_u2** const localvariable_type_table_start,

2117

TRAPSJavaThread* __the_thread__) {

2118

2119

ResourceMark rm(THREAD__the_thread__);

2120

2121

typedef ResourceHashtable<LocalVariableTableElement, LocalVariableTableElement*,

2122

256, ResourceObj::RESOURCE_AREA, mtInternal,

2123

&LVT_Hash::hash, &LVT_Hash::equals> LVT_HashTable;

2124

2125

LVT_HashTable* const table = new LVT_HashTable();

2126

2127

// To fill LocalVariableTable in

2128

const Classfile_LVT_Element* cf_lvt;

2129

LocalVariableTableElement* lvt = cm->localvariable_table_start();

2130

2131

for (int tbl_no = 0; tbl_no < lvt_cnt; tbl_no++) {

2132

cf_lvt = (Classfile_LVT_Element *) localvariable_table_start[tbl_no];

2133

for (int idx = 0; idx < localvariable_table_length[tbl_no]; idx++, lvt++) {

2134

copy_lvt_element(&cf_lvt[idx], lvt);

2135

// If no duplicates, add LVT elem in hashtable.

2136

if (table->put(*lvt, lvt) == false

2137

&& _need_verify

2138

&& _major_version >= JAVA_1_5_VERSION49) {

2139

classfile_parse_error("Duplicated LocalVariableTable attribute "

2140

"entry for '%s' in class file %s",

2141

_cp->symbol_at(lvt->name_cp_index)->as_utf8(),

2142

THREAD__the_thread__);

2143

return;

2144

}

2145

}

2146

}

2147

2148

// To merge LocalVariableTable and LocalVariableTypeTable

2149

const Classfile_LVT_Element* cf_lvtt;

2150

LocalVariableTableElement lvtt_elem;

2151

2152

for (int tbl_no = 0; tbl_no < lvtt_cnt; tbl_no++) {

2153

cf_lvtt = (Classfile_LVT_Element *) localvariable_type_table_start[tbl_no];

2154

for (int idx = 0; idx < localvariable_type_table_length[tbl_no]; idx++) {

2155

copy_lvt_element(&cf_lvtt[idx], &lvtt_elem);

2156

LocalVariableTableElement** entry = table->get(lvtt_elem);

2157

if (entry == NULL__null) {

2158

if (_need_verify) {

2159

classfile_parse_error("LVTT entry for '%s' in class file %s "

2160

"does not match any LVT entry",

2161

_cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(),

2162

THREAD__the_thread__);

2163

return;

2164

}

2165

} else if ((*entry)->signature_cp_index != 0 && _need_verify) {

2166

classfile_parse_error("Duplicated LocalVariableTypeTable attribute "

2167

"entry for '%s' in class file %s",

2168

_cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(),

2169

THREAD__the_thread__);

2170

return;

2171

} else {

2172

// to add generic signatures into LocalVariableTable

2173

(*entry)->signature_cp_index = lvtt_elem.descriptor_cp_index;

2174

}

2175

}

2176

}

2177

}

2178

2179

2180

void ClassFileParser::copy_method_annotations(ConstMethod* cm,

2181

const u1* runtime_visible_annotations,

2182

int runtime_visible_annotations_length,

2183

const u1* runtime_invisible_annotations,

2184

int runtime_invisible_annotations_length,

2185

const u1* runtime_visible_parameter_annotations,

2186

int runtime_visible_parameter_annotations_length,

2187

const u1* runtime_invisible_parameter_annotations,

2188

int runtime_invisible_parameter_annotations_length,

2189

const u1* runtime_visible_type_annotations,

2190

int runtime_visible_type_annotations_length,

2191

const u1* runtime_invisible_type_annotations,

2192

int runtime_invisible_type_annotations_length,

2193

const u1* annotation_default,

2194

int annotation_default_length,

2195

TRAPSJavaThread* __the_thread__) {

2196

2197

AnnotationArray* a;

2198

2199

if (runtime_visible_annotations_length +

2200

runtime_invisible_annotations_length > 0) {

2201

a = assemble_annotations(runtime_visible_annotations,

2202

runtime_visible_annotations_length,

2203

runtime_invisible_annotations,

2204

runtime_invisible_annotations_length,

2205

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

2206

cm->set_method_annotations(a);

2207

}

2208

2209

if (runtime_visible_parameter_annotations_length +

2210

runtime_invisible_parameter_annotations_length > 0) {

2211

a = assemble_annotations(runtime_visible_parameter_annotations,

2212

runtime_visible_parameter_annotations_length,

2213

runtime_invisible_parameter_annotations,

2214

runtime_invisible_parameter_annotations_length,

2215

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

2216

cm->set_parameter_annotations(a);

2217

}

2218

2219

if (annotation_default_length > 0) {

2220

a = assemble_annotations(annotation_default,

2221

annotation_default_length,

2222

NULL__null,

2223

0,

2224

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

2225

cm->set_default_annotations(a);

2226

}

2227

2228

if (runtime_visible_type_annotations_length +

2229

runtime_invisible_type_annotations_length > 0) {

2230

a = assemble_annotations(runtime_visible_type_annotations,

2231

runtime_visible_type_annotations_length,

2232

runtime_invisible_type_annotations,

2233

runtime_invisible_type_annotations_length,

2234

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

2235

cm->set_type_annotations(a);

2236

}

2237

}

2238

2239

2240

// Note: the parse_method below is big and clunky because all parsing of the code and exceptions

2241

// attribute is inlined. This is cumbersome to avoid since we inline most of the parts in the

2242

// Method* to save footprint, so we only know the size of the resulting Method* when the

2243

// entire method attribute is parsed.

2244

//

2245

// The promoted_flags parameter is used to pass relevant access_flags

2246

// from the method back up to the containing klass. These flag values

2247

// are added to klass's access_flags.

2248

2249

Method* ClassFileParser::parse_method(const ClassFileStream* const cfs,

2250

bool is_interface,

2251

const ConstantPool* cp,

2252

AccessFlags* const promoted_flags,

2253

TRAPSJavaThread* __the_thread__) {

2254

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2254, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

2255

assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2255, "assert(" "cp != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

2256

assert(promoted_flags != NULL, "invariant")do { if (!(promoted_flags != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2256, "assert(" "promoted_flags != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

2257

2258

ResourceMark rm(THREAD__the_thread__);

2259

// Parse fixed parts:

2260

// access_flags, name_index, descriptor_index, attributes_count

2261

cfs->guarantee_more(8, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2262

2263

int flags = cfs->get_u2_fast();

2264

const u2 name_index = cfs->get_u2_fast();

2265

const int cp_size = cp->length();

2266

check_property(

2267

valid_symbol_at(name_index),

2268

"Illegal constant pool index %u for method name in class file %s",

2269

name_index, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2270

const Symbol* const name = cp->symbol_at(name_index);

2271

verify_legal_method_name(name, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2272

2273

const u2 signature_index = cfs->get_u2_fast();

2274

guarantee_property(

2275

valid_symbol_at(signature_index),

2276

"Illegal constant pool index %u for method signature in class file %s",

2277

signature_index, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2278

const Symbol* const signature = cp->symbol_at(signature_index);

2279

2280

if (name == vmSymbols::class_initializer_name()) {

2281

// We ignore the other access flags for a valid class initializer.

2282

// (JVM Spec 2nd ed., chapter 4.6)

2283

if (_major_version < 51) { // backward compatibility

2284

flags = JVM_ACC_STATIC;

2285

} else if ((flags & JVM_ACC_STATIC) == JVM_ACC_STATIC) {

2286

flags &= JVM_ACC_STATIC | (_major_version <= JAVA_16_VERSION60 ? JVM_ACC_STRICT : 0);

2287

} else {

2288

classfile_parse_error("Method <clinit> is not static in class file %s", THREAD__the_thread__);

2289

return NULL__null;

2290

}

2291

} else {

2292

verify_legal_method_modifiers(flags, is_interface, name, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2293

}

2294

2295

if (name == vmSymbols::object_initializer_name() && is_interface) {

2296

classfile_parse_error("Interface cannot have a method named <init>, class file %s", THREAD__the_thread__);

2297

return NULL__null;

2298

}

2299

2300

int args_size = -1; // only used when _need_verify is true

2301

if (_need_verify) {

2302

verify_legal_name_with_signature(name, signature, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2303

args_size = ((flags & JVM_ACC_STATIC) ? 0 : 1) +

2304

verify_legal_method_signature(name, signature, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2305

if (args_size > MAX_ARGS_SIZE255) {

2306

classfile_parse_error("Too many arguments in method signature in class file %s", THREAD__the_thread__);

2307

return NULL__null;

2308

}

2309

}

2310

2311

2312

2313

// Default values for code and exceptions attribute elements

2314

u2 max_stack = 0;

2315

u2 max_locals = 0;

2316

u4 code_length = 0;

2317

const u1* code_start = 0;

2318

u2 exception_table_length = 0;

2319

const unsafe_u2* exception_table_start = NULL__null; // (potentially unaligned) pointer to array of u2 elements

2320

Array<int>* exception_handlers = Universe::the_empty_int_array();

2321

u2 checked_exceptions_length = 0;

2322

const unsafe_u2* checked_exceptions_start = NULL__null; // (potentially unaligned) pointer to array of u2 elements

2323

CompressedLineNumberWriteStream* linenumber_table = NULL__null;

2324

int linenumber_table_length = 0;

2325

int total_lvt_length = 0;

2326

u2 lvt_cnt = 0;

2327

u2 lvtt_cnt = 0;

2328

bool lvt_allocated = false;

2329

u2 max_lvt_cnt = INITIAL_MAX_LVT_NUMBER256;

2330

u2 max_lvtt_cnt = INITIAL_MAX_LVT_NUMBER256;

2331

u2* localvariable_table_length = NULL__null;

2332

const unsafe_u2** localvariable_table_start = NULL__null; // (potentially unaligned) pointer to array of LVT attributes

2333

u2* localvariable_type_table_length = NULL__null;

2334

const unsafe_u2** localvariable_type_table_start = NULL__null; // (potentially unaligned) pointer to LVTT attributes

2335

int method_parameters_length = -1;

2336

const u1* method_parameters_data = NULL__null;

2337

bool method_parameters_seen = false;

2338

bool parsed_code_attribute = false;

2339

bool parsed_checked_exceptions_attribute = false;

2340

bool parsed_stackmap_attribute = false;

2341

// stackmap attribute - JDK1.5

2342

const u1* stackmap_data = NULL__null;

2343

int stackmap_data_length = 0;

2344

u2 generic_signature_index = 0;

2345

MethodAnnotationCollector parsed_annotations;

2346

const u1* runtime_visible_annotations = NULL__null;

2347

int runtime_visible_annotations_length = 0;

2348

const u1* runtime_invisible_annotations = NULL__null;

2349

int runtime_invisible_annotations_length = 0;

2350

const u1* runtime_visible_parameter_annotations = NULL__null;

2351

int runtime_visible_parameter_annotations_length = 0;

2352

const u1* runtime_invisible_parameter_annotations = NULL__null;

2353

int runtime_invisible_parameter_annotations_length = 0;

2354

const u1* runtime_visible_type_annotations = NULL__null;

2355

int runtime_visible_type_annotations_length = 0;

2356

const u1* runtime_invisible_type_annotations = NULL__null;

2357

int runtime_invisible_type_annotations_length = 0;

2358

bool runtime_invisible_annotations_exists = false;

2359

bool runtime_invisible_type_annotations_exists = false;

2360

bool runtime_invisible_parameter_annotations_exists = false;

2361

const u1* annotation_default = NULL__null;

2362

int annotation_default_length = 0;

2363

2364

// Parse code and exceptions attribute

2365

u2 method_attributes_count = cfs->get_u2_fast();

2366

while (method_attributes_count--) {

2367

cfs->guarantee_more(6, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0); // method_attribute_name_index, method_attribute_length

2368

const u2 method_attribute_name_index = cfs->get_u2_fast();

2369

const u4 method_attribute_length = cfs->get_u4_fast();

2370

check_property(

2371

valid_symbol_at(method_attribute_name_index),

2372

"Invalid method attribute name index %u in class file %s",

2373

method_attribute_name_index, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2374

2375

const Symbol* const method_attribute_name = cp->symbol_at(method_attribute_name_index);

2376

if (method_attribute_name == vmSymbols::tag_code()) {

2377

// Parse Code attribute

2378

if (_need_verify) {

2379

guarantee_property(

2380

!access_flags.is_native() && !access_flags.is_abstract(),

2381

"Code attribute in native or abstract methods in class file %s",

2382

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2383

}

2384

if (parsed_code_attribute) {

2385

classfile_parse_error("Multiple Code attributes in class file %s",

2386

THREAD__the_thread__);

2387

return NULL__null;

2388

}

2389

parsed_code_attribute = true;

2390

2391

// Stack size, locals size, and code size

2392

cfs->guarantee_more(8, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2393

max_stack = cfs->get_u2_fast();

2394

max_locals = cfs->get_u2_fast();

2395

code_length = cfs->get_u4_fast();

2396

if (_need_verify) {

2397

guarantee_property(args_size <= max_locals,

2398

"Arguments can't fit into locals in class file %s",

2399

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2400

guarantee_property(code_length > 0 && code_length <= MAX_CODE_SIZE65535,

2401

"Invalid method Code length %u in class file %s",

2402

code_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2403

}

2404

// Code pointer

2405

code_start = cfs->current();

2406

assert(code_start != NULL, "null code start")do { if (!(code_start != __null)) { (*g_assert_poison) = 'X';
; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2406, "assert(" "code_start != __null" ") failed", "null code start"
); ::breakpoint(); } } while (0);

2407

cfs->guarantee_more(code_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2408

cfs->skip_u1_fast(code_length);

2409

2410

// Exception handler table

2411

cfs->guarantee_more(2, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0); // exception_table_length

2412

exception_table_length = cfs->get_u2_fast();

2413

if (exception_table_length > 0) {

2414

exception_table_start = parse_exception_table(cfs,

2415

code_length,

2416

exception_table_length,

2417

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2418

}

2419

2420

// Parse additional attributes in code attribute

2421

cfs->guarantee_more(2, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0); // code_attributes_count

2422

u2 code_attributes_count = cfs->get_u2_fast();

2423

2424

unsigned int calculated_attribute_length = 0;

2425

2426

calculated_attribute_length =

2427

sizeof(max_stack) + sizeof(max_locals) + sizeof(code_length);

2428

calculated_attribute_length +=

2429

code_length +

2430

sizeof(exception_table_length) +

2431

sizeof(code_attributes_count) +

2432

exception_table_length *

2433

( sizeof(u2) + // start_pc

2434

sizeof(u2) + // end_pc

2435

sizeof(u2) + // handler_pc

2436

sizeof(u2) ); // catch_type_index

2437

2438

while (code_attributes_count--) {

2439

cfs->guarantee_more(6, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0); // code_attribute_name_index, code_attribute_length

2440

const u2 code_attribute_name_index = cfs->get_u2_fast();

2441

const u4 code_attribute_length = cfs->get_u4_fast();

2442

calculated_attribute_length += code_attribute_length +

2443

sizeof(code_attribute_name_index) +

2444

sizeof(code_attribute_length);

2445

check_property(valid_symbol_at(code_attribute_name_index),

2446

"Invalid code attribute name index %u in class file %s",

2447

code_attribute_name_index,

2448

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2449

if (LoadLineNumberTables &&

2450

cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_line_number_table()) {

2451

// Parse and compress line number table

2452

parse_linenumber_table(code_attribute_length,

2453

code_length,

2454

&linenumber_table,

2455

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2456

2457

} else if (LoadLocalVariableTables &&

2458

cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_local_variable_table()) {

2459

// Parse local variable table

2460

if (!lvt_allocated) {

2461

localvariable_table_length = NEW_RESOURCE_ARRAY_IN_THREAD((u2*) resource_allocate_bytes(__the_thread__, (256) * sizeof(
u2))

2462

THREAD, u2, INITIAL_MAX_LVT_NUMBER)(u2*) resource_allocate_bytes(__the_thread__, (256) * sizeof(
u2));

2463

localvariable_table_start = NEW_RESOURCE_ARRAY_IN_THREAD((const unsafe_u2**) resource_allocate_bytes(__the_thread__, (
256) * sizeof(const unsafe_u2*))

2464

THREAD, const unsafe_u2*, INITIAL_MAX_LVT_NUMBER)(const unsafe_u2**) resource_allocate_bytes(__the_thread__, (
256) * sizeof(const unsafe_u2*));

2465

localvariable_type_table_length = NEW_RESOURCE_ARRAY_IN_THREAD((u2*) resource_allocate_bytes(__the_thread__, (256) * sizeof(
u2))

2466

THREAD, u2, INITIAL_MAX_LVT_NUMBER)(u2*) resource_allocate_bytes(__the_thread__, (256) * sizeof(
u2));

2467

localvariable_type_table_start = NEW_RESOURCE_ARRAY_IN_THREAD((const unsafe_u2**) resource_allocate_bytes(__the_thread__, (
256) * sizeof(const unsafe_u2*))

2468

THREAD, const unsafe_u2*, INITIAL_MAX_LVT_NUMBER)(const unsafe_u2**) resource_allocate_bytes(__the_thread__, (
256) * sizeof(const unsafe_u2*));

2469

lvt_allocated = true;

2470

}

2471

if (lvt_cnt == max_lvt_cnt) {

2472

max_lvt_cnt <<= 1;

2473

localvariable_table_length = REALLOC_RESOURCE_ARRAY(u2, localvariable_table_length, lvt_cnt, max_lvt_cnt)(u2*) resource_reallocate_bytes((char*)(localvariable_table_length
), (lvt_cnt) * sizeof(u2), (max_lvt_cnt) * sizeof(u2));

2474

localvariable_table_start = REALLOC_RESOURCE_ARRAY(const unsafe_u2*, localvariable_table_start, lvt_cnt, max_lvt_cnt)(const unsafe_u2**) resource_reallocate_bytes((char*)(localvariable_table_start
), (lvt_cnt) * sizeof(const unsafe_u2*), (max_lvt_cnt) * sizeof
(const unsafe_u2*));

2475

}

2476

localvariable_table_start[lvt_cnt] =

2477

parse_localvariable_table(cfs,

2478

code_length,

2479

max_locals,

2480

code_attribute_length,

2481

&localvariable_table_length[lvt_cnt],

2482

false, // is not LVTT

2483

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2484

total_lvt_length += localvariable_table_length[lvt_cnt];

2485

lvt_cnt++;

2486

} else if (LoadLocalVariableTypeTables &&

2487

_major_version >= JAVA_1_5_VERSION49 &&

2488

cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_local_variable_type_table()) {

2489

if (!lvt_allocated) {

2490

localvariable_table_length = NEW_RESOURCE_ARRAY_IN_THREAD((u2*) resource_allocate_bytes(__the_thread__, (256) * sizeof(
u2))

2491

THREAD, u2, INITIAL_MAX_LVT_NUMBER)(u2*) resource_allocate_bytes(__the_thread__, (256) * sizeof(
u2));

2492

localvariable_table_start = NEW_RESOURCE_ARRAY_IN_THREAD((const unsafe_u2**) resource_allocate_bytes(__the_thread__, (
256) * sizeof(const unsafe_u2*))

2493

THREAD, const unsafe_u2*, INITIAL_MAX_LVT_NUMBER)(const unsafe_u2**) resource_allocate_bytes(__the_thread__, (
256) * sizeof(const unsafe_u2*));

2494

localvariable_type_table_length = NEW_RESOURCE_ARRAY_IN_THREAD((u2*) resource_allocate_bytes(__the_thread__, (256) * sizeof(
u2))

2495

THREAD, u2, INITIAL_MAX_LVT_NUMBER)(u2*) resource_allocate_bytes(__the_thread__, (256) * sizeof(
u2));

2496

localvariable_type_table_start = NEW_RESOURCE_ARRAY_IN_THREAD((const unsafe_u2**) resource_allocate_bytes(__the_thread__, (
256) * sizeof(const unsafe_u2*))

2497

THREAD, const unsafe_u2*, INITIAL_MAX_LVT_NUMBER)(const unsafe_u2**) resource_allocate_bytes(__the_thread__, (
256) * sizeof(const unsafe_u2*));

2498

lvt_allocated = true;

2499

}

2500

// Parse local variable type table

2501

if (lvtt_cnt == max_lvtt_cnt) {

2502

max_lvtt_cnt <<= 1;

2503

localvariable_type_table_length = REALLOC_RESOURCE_ARRAY(u2, localvariable_type_table_length, lvtt_cnt, max_lvtt_cnt)(u2*) resource_reallocate_bytes((char*)(localvariable_type_table_length
), (lvtt_cnt) * sizeof(u2), (max_lvtt_cnt) * sizeof(u2));

2504

localvariable_type_table_start = REALLOC_RESOURCE_ARRAY(const unsafe_u2*, localvariable_type_table_start, lvtt_cnt, max_lvtt_cnt)(const unsafe_u2**) resource_reallocate_bytes((char*)(localvariable_type_table_start
), (lvtt_cnt) * sizeof(const unsafe_u2*), (max_lvtt_cnt) * sizeof
(const unsafe_u2*));

2505

}

2506

localvariable_type_table_start[lvtt_cnt] =

2507

parse_localvariable_table(cfs,

2508

code_length,

2509

max_locals,

2510

code_attribute_length,

2511

&localvariable_type_table_length[lvtt_cnt],

2512

true, // is LVTT

2513

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2514

lvtt_cnt++;

2515

} else if (_major_version >= Verifier::STACKMAP_ATTRIBUTE_MAJOR_VERSION &&

2516

cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_stack_map_table()) {

2517

// Stack map is only needed by the new verifier in JDK1.5.

2518

if (parsed_stackmap_attribute) {

2519

classfile_parse_error("Multiple StackMapTable attributes in class file %s", THREAD__the_thread__);

2520

return NULL__null;

2521

}

2522

stackmap_data = parse_stackmap_table(cfs, code_attribute_length, _need_verify, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2523

stackmap_data_length = code_attribute_length;

2524

parsed_stackmap_attribute = true;

2525

} else {

2526

// Skip unknown attributes

2527

cfs->skip_u1(code_attribute_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2528

}

2529

}

2530

// check method attribute length

2531

if (_need_verify) {

2532

guarantee_property(method_attribute_length == calculated_attribute_length,

2533

"Code segment has wrong length in class file %s",

2534

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2535

}

2536

} else if (method_attribute_name == vmSymbols::tag_exceptions()) {

2537

// Parse Exceptions attribute

2538

if (parsed_checked_exceptions_attribute) {

2539

classfile_parse_error("Multiple Exceptions attributes in class file %s",

2540

THREAD__the_thread__);

2541

return NULL__null;

2542

}

2543

parsed_checked_exceptions_attribute = true;

2544

checked_exceptions_start =

2545

parse_checked_exceptions(cfs,

2546

&checked_exceptions_length,

2547

method_attribute_length,

2548

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2549

} else if (method_attribute_name == vmSymbols::tag_method_parameters()) {

2550

// reject multiple method parameters

2551

if (method_parameters_seen) {

2552

classfile_parse_error("Multiple MethodParameters attributes in class file %s",

2553

THREAD__the_thread__);

2554

return NULL__null;

2555

}

2556

method_parameters_seen = true;

2557

method_parameters_length = cfs->get_u1_fast();

2558

const u2 real_length = (method_parameters_length * 4u) + 1u;

2559

if (method_attribute_length != real_length) {

2560

classfile_parse_error(

2561

"Invalid MethodParameters method attribute length %u in class file",

2562

method_attribute_length, THREAD__the_thread__);

2563

return NULL__null;

2564

}

2565

method_parameters_data = cfs->current();

2566

cfs->skip_u2_fast(method_parameters_length);

2567

cfs->skip_u2_fast(method_parameters_length);

2568

// ignore this attribute if it cannot be reflected

2569

if (!vmClasses::Parameter_klass_loaded())

2570

method_parameters_length = -1;

2571

} else if (method_attribute_name == vmSymbols::tag_synthetic()) {

2572

if (method_attribute_length != 0) {

2573

classfile_parse_error(

2574

"Invalid Synthetic method attribute length %u in class file %s",

2575

method_attribute_length, THREAD__the_thread__);

2576

return NULL__null;

2577

}

2578

// Should we check that there hasn't already been a synthetic attribute?

2579

access_flags.set_is_synthetic();

2580

} else if (method_attribute_name == vmSymbols::tag_deprecated()) { // 4276120

2581

if (method_attribute_length != 0) {

2582

classfile_parse_error(

2583

"Invalid Deprecated method attribute length %u in class file %s",

2584

method_attribute_length, THREAD__the_thread__);

2585

return NULL__null;

2586

}

2587

} else if (_major_version >= JAVA_1_5_VERSION49) {

2588

if (method_attribute_name == vmSymbols::tag_signature()) {

2589

if (generic_signature_index != 0) {

2590

classfile_parse_error(

2591

"Multiple Signature attributes for method in class file %s",

2592

THREAD__the_thread__);

2593

return NULL__null;

2594

}

2595

if (method_attribute_length != 2) {

2596

classfile_parse_error(

2597

"Invalid Signature attribute length %u in class file %s",

2598

method_attribute_length, THREAD__the_thread__);

2599

return NULL__null;

2600

}

2601

generic_signature_index = parse_generic_signature_attribute(cfs, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2602

} else if (method_attribute_name == vmSymbols::tag_runtime_visible_annotations()) {

2603

if (runtime_visible_annotations != NULL__null) {

2604

classfile_parse_error(

2605

"Multiple RuntimeVisibleAnnotations attributes for method in class file %s",

2606

THREAD__the_thread__);

2607

return NULL__null;

2608

}

2609

runtime_visible_annotations_length = method_attribute_length;

2610

runtime_visible_annotations = cfs->current();

2611

assert(runtime_visible_annotations != NULL, "null visible annotations")do { if (!(runtime_visible_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2611, "assert(" "runtime_visible_annotations != __null" ") failed"
, "null visible annotations"); ::breakpoint(); } } while (0);

2612

cfs->guarantee_more(runtime_visible_annotations_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2613

parse_annotations(cp,

2614

runtime_visible_annotations,

2615

runtime_visible_annotations_length,

2616

&parsed_annotations,

2617

_loader_data,

2618

_can_access_vm_annotations);

2619

cfs->skip_u1_fast(runtime_visible_annotations_length);

2620

} else if (method_attribute_name == vmSymbols::tag_runtime_invisible_annotations()) {

2621

if (runtime_invisible_annotations_exists) {

2622

classfile_parse_error(

2623

"Multiple RuntimeInvisibleAnnotations attributes for method in class file %s",

2624

THREAD__the_thread__);

2625

return NULL__null;

2626

}

2627

runtime_invisible_annotations_exists = true;

2628

if (PreserveAllAnnotations) {

2629

runtime_invisible_annotations_length = method_attribute_length;

2630

runtime_invisible_annotations = cfs->current();

2631

assert(runtime_invisible_annotations != NULL, "null invisible annotations")do { if (!(runtime_invisible_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2631, "assert(" "runtime_invisible_annotations != __null" ") failed"
, "null invisible annotations"); ::breakpoint(); } } while (0
);

2632

}

2633

cfs->skip_u1(method_attribute_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2634

} else if (method_attribute_name == vmSymbols::tag_runtime_visible_parameter_annotations()) {

2635

if (runtime_visible_parameter_annotations != NULL__null) {

2636

classfile_parse_error(

2637

"Multiple RuntimeVisibleParameterAnnotations attributes for method in class file %s",

2638

THREAD__the_thread__);

2639

return NULL__null;

2640

}

2641

runtime_visible_parameter_annotations_length = method_attribute_length;

2642

runtime_visible_parameter_annotations = cfs->current();

2643

assert(runtime_visible_parameter_annotations != NULL, "null visible parameter annotations")do { if (!(runtime_visible_parameter_annotations != __null)) {
(*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2643, "assert(" "runtime_visible_parameter_annotations != __null"
") failed", "null visible parameter annotations"); ::breakpoint
(); } } while (0);

2644

cfs->skip_u1(runtime_visible_parameter_annotations_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2645

} else if (method_attribute_name == vmSymbols::tag_runtime_invisible_parameter_annotations()) {

2646

if (runtime_invisible_parameter_annotations_exists) {

2647

classfile_parse_error(

2648

"Multiple RuntimeInvisibleParameterAnnotations attributes for method in class file %s",

2649

THREAD__the_thread__);

2650

return NULL__null;

2651

}

2652

runtime_invisible_parameter_annotations_exists = true;

2653

if (PreserveAllAnnotations) {

2654

runtime_invisible_parameter_annotations_length = method_attribute_length;

2655

runtime_invisible_parameter_annotations = cfs->current();

2656

assert(runtime_invisible_parameter_annotations != NULL,do { if (!(runtime_invisible_parameter_annotations != __null)
) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2657, "assert(" "runtime_invisible_parameter_annotations != __null"
") failed", "null invisible parameter annotations"); ::breakpoint
(); } } while (0)

2657

"null invisible parameter annotations")do { if (!(runtime_invisible_parameter_annotations != __null)
) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2657, "assert(" "runtime_invisible_parameter_annotations != __null"
") failed", "null invisible parameter annotations"); ::breakpoint
(); } } while (0);

2658

}

2659

cfs->skip_u1(method_attribute_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2660

} else if (method_attribute_name == vmSymbols::tag_annotation_default()) {

2661

if (annotation_default != NULL__null) {

2662

classfile_parse_error(

2663

"Multiple AnnotationDefault attributes for method in class file %s",

2664

THREAD__the_thread__);

2665

return NULL__null;

2666

}

2667

annotation_default_length = method_attribute_length;

2668

annotation_default = cfs->current();

2669

assert(annotation_default != NULL, "null annotation default")do { if (!(annotation_default != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2669, "assert(" "annotation_default != __null" ") failed", "null annotation default"
); ::breakpoint(); } } while (0);

2670

cfs->skip_u1(annotation_default_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2671

} else if (method_attribute_name == vmSymbols::tag_runtime_visible_type_annotations()) {

2672

if (runtime_visible_type_annotations != NULL__null) {

2673

classfile_parse_error(

2674

"Multiple RuntimeVisibleTypeAnnotations attributes for method in class file %s",

2675

THREAD__the_thread__);

2676

return NULL__null;

2677

}

2678

runtime_visible_type_annotations_length = method_attribute_length;

2679

runtime_visible_type_annotations = cfs->current();

2680

assert(runtime_visible_type_annotations != NULL, "null visible type annotations")do { if (!(runtime_visible_type_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2680, "assert(" "runtime_visible_type_annotations != __null"
") failed", "null visible type annotations"); ::breakpoint()
; } } while (0);

2681

// No need for the VM to parse Type annotations

2682

cfs->skip_u1(runtime_visible_type_annotations_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2683

} else if (method_attribute_name == vmSymbols::tag_runtime_invisible_type_annotations()) {

2684

if (runtime_invisible_type_annotations_exists) {

2685

classfile_parse_error(

2686

"Multiple RuntimeInvisibleTypeAnnotations attributes for method in class file %s",

2687

THREAD__the_thread__);

2688

return NULL__null;

2689

} else {

2690

runtime_invisible_type_annotations_exists = true;

2691

}

2692

if (PreserveAllAnnotations) {

2693

runtime_invisible_type_annotations_length = method_attribute_length;

2694

runtime_invisible_type_annotations = cfs->current();

2695

assert(runtime_invisible_type_annotations != NULL, "null invisible type annotations")do { if (!(runtime_invisible_type_annotations != __null)) { (
*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2695, "assert(" "runtime_invisible_type_annotations != __null"
") failed", "null invisible type annotations"); ::breakpoint
(); } } while (0);

2696

}

2697

cfs->skip_u1(method_attribute_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2698

} else {

2699

// Skip unknown attributes

2700

cfs->skip_u1(method_attribute_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2701

}

2702

} else {

2703

// Skip unknown attributes

2704

cfs->skip_u1(method_attribute_length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2705

}

2706

}

2707

2708

if (linenumber_table != NULL__null) {

2709

linenumber_table->write_terminator();

2710

linenumber_table_length = linenumber_table->position();

2711

}

2712

2713

// Make sure there's at least one Code attribute in non-native/non-abstract method

2714

if (_need_verify) {

2715

guarantee_property(access_flags.is_native() ||

2716

access_flags.is_abstract() ||

2717

parsed_code_attribute,

2718

"Absent Code attribute in method that is not native or abstract in class file %s",

2719

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2720

}

2721

2722

// All sizing information for a Method* is finally available, now create it

2723

InlineTableSizes sizes(

2724

total_lvt_length,

2725

linenumber_table_length,

2726

exception_table_length,

2727

checked_exceptions_length,

2728

method_parameters_length,

2729

generic_signature_index,

2730

runtime_visible_annotations_length +

2731

runtime_invisible_annotations_length,

2732

runtime_visible_parameter_annotations_length +

2733

runtime_invisible_parameter_annotations_length,

2734

runtime_visible_type_annotations_length +

2735

runtime_invisible_type_annotations_length,

2736

annotation_default_length,

2737

0);

2738

2739

Method* const m = Method::allocate(_loader_data,

2740

code_length,

2741

access_flags,

2742

&sizes,

2743

ConstMethod::NORMAL,

2744

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2745

2746

ClassLoadingService::add_class_method_size(m->size()*wordSize);

2747

2748

// Fill in information from fixed part (access_flags already set)

2749

m->set_constants(_cp);

2750

m->set_name_index(name_index);

2751

m->set_signature_index(signature_index);

2752

m->compute_from_signature(cp->symbol_at(signature_index));

2753

assert(args_size < 0 || args_size == m->size_of_parameters(), "")do { if (!(args_size < 0 || args_size == m->size_of_parameters
())) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2753, "assert(" "args_size < 0 || args_size == m->size_of_parameters()"
") failed", ""); ::breakpoint(); } } while (0);

2754

2755

// Fill in code attribute information

2756

m->set_max_stack(max_stack);

2757

m->set_max_locals(max_locals);

2758

if (stackmap_data != NULL__null) {

2759

m->constMethod()->copy_stackmap_data(_loader_data,

2760

(u1*)stackmap_data,

2761

stackmap_data_length,

2762

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2763

}

2764

2765

// Copy byte codes

2766

m->set_code((u1*)code_start);

2767

2768

// Copy line number table

2769

if (linenumber_table != NULL__null) {

2770

memcpy(m->compressed_linenumber_table(),

2771

linenumber_table->buffer(),

2772

linenumber_table_length);

2773

}

2774

2775

// Copy exception table

2776

if (exception_table_length > 0) {

2777

Copy::conjoint_swap_if_needed<Endian::JAVA>(exception_table_start,

2778

m->exception_table_start(),

2779

exception_table_length * sizeof(ExceptionTableElement),

2780

sizeof(u2));

2781

}

2782

2783

// Copy method parameters

2784

if (method_parameters_length > 0) {

2785

MethodParametersElement* elem = m->constMethod()->method_parameters_start();

2786

for (int i = 0; i < method_parameters_length; i++) {

2787

elem[i].name_cp_index = Bytes::get_Java_u2((address)method_parameters_data);

2788

method_parameters_data += 2;

2789

elem[i].flags = Bytes::get_Java_u2((address)method_parameters_data);

2790

method_parameters_data += 2;

2791

}

2792

}

2793

2794

// Copy checked exceptions

2795

if (checked_exceptions_length > 0) {

2796

Copy::conjoint_swap_if_needed<Endian::JAVA>(checked_exceptions_start,

2797

m->checked_exceptions_start(),

2798

checked_exceptions_length * sizeof(CheckedExceptionElement),

2799

sizeof(u2));

2800

}

2801

2802

// Copy class file LVT's/LVTT's into the HotSpot internal LVT.

2803

if (total_lvt_length > 0) {

2804

promoted_flags->set_has_localvariable_table();

2805

copy_localvariable_table(m->constMethod(),

2806

lvt_cnt,

2807

localvariable_table_length,

2808

localvariable_table_start,

2809

lvtt_cnt,

2810

localvariable_type_table_length,

2811

localvariable_type_table_start,

2812

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2813

}

2814

2815

if (parsed_annotations.has_any_annotations())

2816

parsed_annotations.apply_to(methodHandle(THREAD__the_thread__, m));

2817

2818

if (is_hidden()) { // Mark methods in hidden classes as 'hidden'.

2819

m->set_hidden(true);

2820

}

2821

2822

// Copy annotations

2823

copy_method_annotations(m->constMethod(),

2824

runtime_visible_annotations,

2825

runtime_visible_annotations_length,

2826

runtime_invisible_annotations,

2827

runtime_invisible_annotations_length,

2828

runtime_visible_parameter_annotations,

2829

runtime_visible_parameter_annotations_length,

2830

runtime_invisible_parameter_annotations,

2831

runtime_invisible_parameter_annotations_length,

2832

runtime_visible_type_annotations,

2833

runtime_visible_type_annotations_length,

2834

runtime_invisible_type_annotations,

2835

runtime_invisible_type_annotations_length,

2836

annotation_default,

2837

annotation_default_length,

2838

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

2839

2840

if (InstanceKlass::is_finalization_enabled() &&

2841

name == vmSymbols::finalize_method_name() &&

2842

signature == vmSymbols::void_method_signature()) {

2843

if (m->is_empty_method()) {

2844

_has_empty_finalizer = true;

2845

} else {

2846

_has_finalizer = true;

2847

}

2848

}

2849

if (name == vmSymbols::object_initializer_name() &&

2850

signature == vmSymbols::void_method_signature() &&

2851

m->is_vanilla_constructor()) {

2852

_has_vanilla_constructor = true;

2853

}

2854

2855

NOT_PRODUCT(m->verify())m->verify();

2856

return m;

2857

}

2858

2859

2860

// The promoted_flags parameter is used to pass relevant access_flags

2861

// from the methods back up to the containing klass. These flag values

2862

// are added to klass's access_flags.

2863

// Side-effects: populates the _methods field in the parser

2864

void ClassFileParser::parse_methods(const ClassFileStream* const cfs,

2865

bool is_interface,

2866

AccessFlags* promoted_flags,

2867

bool* has_final_method,

2868

bool* declares_nonstatic_concrete_methods,

2869

TRAPSJavaThread* __the_thread__) {

2870

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2870, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

2871

assert(promoted_flags != NULL, "invariant")do { if (!(promoted_flags != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2871, "assert(" "promoted_flags != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

2872

assert(has_final_method != NULL, "invariant")do { if (!(has_final_method != __null)) { (*g_assert_poison) =
'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2872, "assert(" "has_final_method != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

2873

assert(declares_nonstatic_concrete_methods != NULL, "invariant")do { if (!(declares_nonstatic_concrete_methods != __null)) { (
*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2873, "assert(" "declares_nonstatic_concrete_methods != __null"
") failed", "invariant"); ::breakpoint(); } } while (0);

2874

2875

assert(NULL == _methods, "invariant")do { if (!(__null == _methods)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2875, "assert(" "__null == _methods" ") failed", "invariant"
); ::breakpoint(); } } while (0);

2876

2877

cfs->guarantee_more(2, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // length

2878

const u2 length = cfs->get_u2_fast();

2879

if (length == 0) {

2880

_methods = Universe::the_empty_method_array();

2881

} else {

2882

_methods = MetadataFactory::new_array<Method*>(_loader_data,

2883

length,

2884

NULL__null,

2885

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

2886

2887

for (int index = 0; index < length; index++) {

2888

Method* method = parse_method(cfs,

2889

is_interface,

2890

_cp,

2891

promoted_flags,

2892

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

2893

2894

if (method->is_final()) {

2895

*has_final_method = true;

2896

}

2897

// declares_nonstatic_concrete_methods: declares concrete instance methods, any access flags

2898

// used for interface initialization, and default method inheritance analysis

2899

if (is_interface && !(*declares_nonstatic_concrete_methods)

2900

&& !method->is_abstract() && !method->is_static()) {

2901

*declares_nonstatic_concrete_methods = true;

2902

}

2903

_methods->at_put(index, method);

2904

}

2905

2906

if (_need_verify && length > 1) {

2907

// Check duplicated methods

2908

ResourceMark rm(THREAD__the_thread__);

2909

NameSigHash** names_and_sigs = NEW_RESOURCE_ARRAY_IN_THREAD((NameSigHash**) resource_allocate_bytes(__the_thread__, (HASH_ROW_SIZE
) * sizeof(NameSigHash*))

2910

THREAD, NameSigHash*, HASH_ROW_SIZE)(NameSigHash**) resource_allocate_bytes(__the_thread__, (HASH_ROW_SIZE
) * sizeof(NameSigHash*));

2911

initialize_hashtable(names_and_sigs);

2912

bool dup = false;

2913

const Symbol* name = NULL__null;

2914

const Symbol* sig = NULL__null;

2915

{

2916

debug_only(NoSafepointVerifier nsv;)NoSafepointVerifier nsv;

2917

for (int i = 0; i < length; i++) {

2918

const Method* const m = _methods->at(i);

2919

name = m->name();

2920

sig = m->signature();

2921

// If no duplicates, add name/signature in hashtable names_and_sigs.

2922

if (!put_after_lookup(name, sig, names_and_sigs)) {

2923

dup = true;

2924

break;

2925

}

2926

}

2927

}

2928

if (dup) {

2929

classfile_parse_error("Duplicate method name \"%s\" with signature \"%s\" in class file %s",

2930

name->as_C_string(), sig->as_klass_external_name(), THREAD__the_thread__);

2931

}

2932

}

2933

}

2934

}

2935

2936

static const intArray* sort_methods(Array<Method*>* methods) {

2937

const int length = methods->length();

2938

// If JVMTI original method ordering or sharing is enabled we have to

2939

// remember the original class file ordering.

2940

// We temporarily use the vtable_index field in the Method* to store the

2941

// class file index, so we can read in after calling qsort.

2942

// Put the method ordering in the shared archive.

2943

if (JvmtiExport::can_maintain_original_method_order() || Arguments::is_dumping_archive()) {

2944

for (int index = 0; index < length; index++) {

2945

Method* const m = methods->at(index);

2946

assert(!m->valid_vtable_index(), "vtable index should not be set")do { if (!(!m->valid_vtable_index())) { (*g_assert_poison)
= 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2946, "assert(" "!m->valid_vtable_index()" ") failed", "vtable index should not be set"
); ::breakpoint(); } } while (0);

2947

m->set_vtable_index(index);

2948

}

2949

}

2950

// Sort method array by ascending method name (for faster lookups & vtable construction)

2951

// Note that the ordering is not alphabetical, see Symbol::fast_compare

2952

Method::sort_methods(methods);

2953

2954

intArray* method_ordering = NULL__null;

2955

// If JVMTI original method ordering or sharing is enabled construct int

2956

// array remembering the original ordering

2957

if (JvmtiExport::can_maintain_original_method_order() || Arguments::is_dumping_archive()) {

2958

method_ordering = new intArray(length, length, -1);

2959

for (int index = 0; index < length; index++) {

2960

Method* const m = methods->at(index);

2961

const int old_index = m->vtable_index();

2962

assert(old_index >= 0 && old_index < length, "invalid method index")do { if (!(old_index >= 0 && old_index < length
)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2962, "assert(" "old_index >= 0 && old_index < length"
") failed", "invalid method index"); ::breakpoint(); } } while
(0);

2963

method_ordering->at_put(index, old_index);

2964

m->set_vtable_index(Method::invalid_vtable_index);

2965

}

2966

}

2967

return method_ordering;

2968

}

2969

2970

// Parse generic_signature attribute for methods and fields

2971

u2 ClassFileParser::parse_generic_signature_attribute(const ClassFileStream* const cfs,

2972

TRAPSJavaThread* __the_thread__) {

2973

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2973, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

2974

2975

cfs->guarantee_more(2, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0); // generic_signature_index

2976

const u2 generic_signature_index = cfs->get_u2_fast();

2977

check_property(

2978

valid_symbol_at(generic_signature_index),

2979

"Invalid Signature attribute at constant pool index %u in class file %s",

2980

generic_signature_index, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

2981

return generic_signature_index;

2982

}

2983

2984

void ClassFileParser::parse_classfile_sourcefile_attribute(const ClassFileStream* const cfs,

2985

TRAPSJavaThread* __the_thread__) {

2986

2987

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 2987, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

2988

2989

cfs->guarantee_more(2, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // sourcefile_index

2990

const u2 sourcefile_index = cfs->get_u2_fast();

2991

check_property(

2992

valid_symbol_at(sourcefile_index),

2993

"Invalid SourceFile attribute at constant pool index %u in class file %s",

2994

sourcefile_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

2995

set_class_sourcefile_index(sourcefile_index);

2996

}

2997

2998

void ClassFileParser::parse_classfile_source_debug_extension_attribute(const ClassFileStream* const cfs,

2999

int length,

3000

TRAPSJavaThread* __the_thread__) {

3001

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3001, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

3002

3003

const u1* const sde_buffer = cfs->current();

3004

assert(sde_buffer != NULL, "null sde buffer")do { if (!(sde_buffer != __null)) { (*g_assert_poison) = 'X';
; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3004, "assert(" "sde_buffer != __null" ") failed", "null sde buffer"
); ::breakpoint(); } } while (0);

3005

3006

// Don't bother storing it if there is no way to retrieve it

3007

if (JvmtiExport::can_get_source_debug_extension()) {

3008

assert((length+1) > length, "Overflow checking")do { if (!((length+1) > length)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3008, "assert(" "(length+1) > length" ") failed", "Overflow checking"
); ::breakpoint(); } } while (0);

3009

u1* const sde = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, u1, length+1)(u1*) resource_allocate_bytes(__the_thread__, (length+1) * sizeof
(u1));

3010

for (int i = 0; i < length; i++) {

3011

sde[i] = sde_buffer[i];

3012

}

3013

sde[length] = '\0';

3014

set_class_sde_buffer((const char*)sde, length);

3015

}

3016

// Got utf8 string, set stream position forward

3017

cfs->skip_u1(length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3018

}

3019

3020

3021

// Inner classes can be static, private or protected (classic VM does this)

3022

3023

JVM_ACC_PRIVATE | \

3024

JVM_ACC_PROTECTED | \

3025

JVM_ACC_STATIC \

3026

)

3027

3028

// Find index of the InnerClasses entry for the specified inner_class_info_index.

3029

// Return -1 if none is found.

3030

static int inner_classes_find_index(const Array<u2>* inner_classes, int inner, const ConstantPool* cp, int length) {

3031

Symbol* cp_klass_name = cp->klass_name_at(inner);

3032

for (int idx = 0; idx < length; idx += InstanceKlass::inner_class_next_offset) {

3033

int idx_inner = inner_classes->at(idx + InstanceKlass::inner_class_inner_class_info_offset);

3034

if (cp->klass_name_at(idx_inner) == cp_klass_name) {

3035

return idx;

3036

}

3037

}

3038

return -1;

3039

}

3040

3041

// Return the outer_class_info_index for the InnerClasses entry containing the

3042

// specified inner_class_info_index. Return -1 if no InnerClasses entry is found.

3043

static int inner_classes_jump_to_outer(const Array<u2>* inner_classes, int inner, const ConstantPool* cp, int length) {

3044

if (inner == 0) return -1;

3045

int idx = inner_classes_find_index(inner_classes, inner, cp, length);

3046

if (idx == -1) return -1;

3047

int result = inner_classes->at(idx + InstanceKlass::inner_class_outer_class_info_offset);

3048

return result;

3049

}

3050

3051

// Return true if circularity is found, false if no circularity is found.

3052

// Use Floyd's cycle finding algorithm.

3053

static bool inner_classes_check_loop_through_outer(const Array<u2>* inner_classes, int idx, const ConstantPool* cp, int length) {

3054

int slow = inner_classes->at(idx + InstanceKlass::inner_class_inner_class_info_offset);

3055

int fast = inner_classes->at(idx + InstanceKlass::inner_class_outer_class_info_offset);

3056

while (fast != -1 && fast != 0) {

3057

if (slow != 0 && (cp->klass_name_at(slow) == cp->klass_name_at(fast))) {

3058

return true; // found a circularity

3059

}

3060

fast = inner_classes_jump_to_outer(inner_classes, fast, cp, length);

3061

if (fast == -1) return false;

3062

fast = inner_classes_jump_to_outer(inner_classes, fast, cp, length);

3063

if (fast == -1) return false;

3064

slow = inner_classes_jump_to_outer(inner_classes, slow, cp, length);

3065

assert(slow != -1, "sanity check")do { if (!(slow != -1)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3065, "assert(" "slow != -1" ") failed", "sanity check"); ::
breakpoint(); } } while (0);

3066

}

3067

return false;

3068

}

3069

3070

// Loop through each InnerClasses entry checking for circularities and duplications

3071

// with other entries. If duplicate entries are found then throw CFE. Otherwise,

3072

// return true if a circularity or entries with duplicate inner_class_info_indexes

3073

// are found.

3074

bool ClassFileParser::check_inner_classes_circularity(const ConstantPool* cp, int length, TRAPSJavaThread* __the_thread__) {

3075

// Loop through each InnerClasses entry.

3076

for (int idx = 0; idx < length; idx += InstanceKlass::inner_class_next_offset) {

3077

// Return true if there are circular entries.

3078

if (inner_classes_check_loop_through_outer(_inner_classes, idx, cp, length)) {

3079

return true;

3080

}

3081

// Check if there are duplicate entries or entries with the same inner_class_info_index.

3082

for (int y = idx + InstanceKlass::inner_class_next_offset; y < length;

3083

y += InstanceKlass::inner_class_next_offset) {

3084

3085

// To maintain compatibility, throw an exception if duplicate inner classes

3086

// entries are found.

3087

guarantee_property((_inner_classes->at(idx) != _inner_classes->at(y) ||

3088

_inner_classes->at(idx+1) != _inner_classes->at(y+1) ||

3089

_inner_classes->at(idx+2) != _inner_classes->at(y+2) ||

3090

_inner_classes->at(idx+3) != _inner_classes->at(y+3)),

3091

"Duplicate entry in InnerClasses attribute in class file %s",

3092

CHECK_(true)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return true; (void)(0);

3093

// Return true if there are two entries with the same inner_class_info_index.

3094

if (_inner_classes->at(y) == _inner_classes->at(idx)) {

3095

return true;

3096

}

3097

}

3098

}

3099

return false;

3100

}

3101

3102

// Return number of classes in the inner classes attribute table

3103

u2 ClassFileParser::parse_classfile_inner_classes_attribute(const ClassFileStream* const cfs,

3104

const ConstantPool* cp,

3105

const u1* const inner_classes_attribute_start,

3106

bool parsed_enclosingmethod_attribute,

3107

u2 enclosing_method_class_index,

3108

u2 enclosing_method_method_index,

3109

TRAPSJavaThread* __the_thread__) {

3110

const u1* const current_mark = cfs->current();

3111

u2 length = 0;

3112

if (inner_classes_attribute_start != NULL__null) {

3113

cfs->set_current(inner_classes_attribute_start);

3114

cfs->guarantee_more(2, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0); // length

3115

length = cfs->get_u2_fast();

3116

}

3117

3118

// 4-tuples of shorts of inner classes data and 2 shorts of enclosing

3119

// method data:

3120

// [inner_class_info_index,

3121

// outer_class_info_index,

3122

// inner_name_index,

3123

// inner_class_access_flags,

3124

// ...

3125

// enclosing_method_class_index,

3126

// enclosing_method_method_index]

3127

const int size = length * 4 + (parsed_enclosingmethod_attribute ? 2 : 0);

3128

Array<u2>* inner_classes = MetadataFactory::new_array<u2>(_loader_data, size, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3129

_inner_classes = inner_classes;

3130

3131

int index = 0;

3132

cfs->guarantee_more(8 * length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0); // 4-tuples of u2

3133

for (int n = 0; n < length; n++) {

3134

// Inner class index

3135

const u2 inner_class_info_index = cfs->get_u2_fast();

3136

check_property(

3137

valid_klass_reference_at(inner_class_info_index),

3138

"inner_class_info_index %u has bad constant type in class file %s",

3139

inner_class_info_index, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3140

// Outer class index

3141

const u2 outer_class_info_index = cfs->get_u2_fast();

3142

check_property(

3143

outer_class_info_index == 0 ||

3144

valid_klass_reference_at(outer_class_info_index),

3145

"outer_class_info_index %u has bad constant type in class file %s",

3146

outer_class_info_index, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3147

3148

if (outer_class_info_index != 0) {

3149

const Symbol* const outer_class_name = cp->klass_name_at(outer_class_info_index);

3150

char* bytes = (char*)outer_class_name->bytes();

3151

guarantee_property(bytes[0] != JVM_SIGNATURE_ARRAY,

3152

"Outer class is an array class in class file %s", CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3153

}

3154

// Inner class name

3155

const u2 inner_name_index = cfs->get_u2_fast();

3156

check_property(

3157

inner_name_index == 0 || valid_symbol_at(inner_name_index),

3158

"inner_name_index %u has bad constant type in class file %s",

3159

inner_name_index, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3160

if (_need_verify) {

3161

guarantee_property(inner_class_info_index != outer_class_info_index,

3162

"Class is both outer and inner class in class file %s", CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3163

}

3164

// Access flags

3165

jint flags;

3166

// JVM_ACC_MODULE is defined in JDK-9 and later.

3167

if (_major_version >= JAVA_9_VERSION53) {

3168

3169

} else {

3170

3171

}

3172

if ((flags & JVM_ACC_INTERFACE) && _major_version < JAVA_6_VERSION50) {

3173

// Set abstract bit for old class files for backward compatibility

3174

flags |= JVM_ACC_ABSTRACT;

3175

}

3176

verify_legal_class_modifiers(flags, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3177

AccessFlags inner_access_flags(flags);

3178

3179

inner_classes->at_put(index++, inner_class_info_index);

3180

inner_classes->at_put(index++, outer_class_info_index);

3181

inner_classes->at_put(index++, inner_name_index);

3182

inner_classes->at_put(index++, inner_access_flags.as_short());

3183

}

3184

3185

// 4347400: make sure there's no duplicate entry in the classes array

3186

// Also, check for circular entries.

3187

bool has_circularity = false;

3188

if (_need_verify && _major_version >= JAVA_1_5_VERSION49) {

3189

has_circularity = check_inner_classes_circularity(cp, length * 4, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3190

if (has_circularity) {

3191

// If circularity check failed then ignore InnerClasses attribute.

3192

MetadataFactory::free_array<u2>(_loader_data, _inner_classes);

3193

index = 0;

3194

if (parsed_enclosingmethod_attribute) {

3195

inner_classes = MetadataFactory::new_array<u2>(_loader_data, 2, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3196

_inner_classes = inner_classes;

3197

} else {

3198

_inner_classes = Universe::the_empty_short_array();

3199

}

3200

}

3201

}

3202

// Set EnclosingMethod class and method indexes.

3203

if (parsed_enclosingmethod_attribute) {

3204

inner_classes->at_put(index++, enclosing_method_class_index);

3205

inner_classes->at_put(index++, enclosing_method_method_index);

3206

}

3207

assert(index == size || has_circularity, "wrong size")do { if (!(index == size || has_circularity)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3207, "assert(" "index == size || has_circularity" ") failed"
, "wrong size"); ::breakpoint(); } } while (0);

3208

3209

// Restore buffer's current position.

3210

cfs->set_current(current_mark);

3211

3212

return length;

3213

}

3214

3215

u2 ClassFileParser::parse_classfile_nest_members_attribute(const ClassFileStream* const cfs,

3216

const u1* const nest_members_attribute_start,

3217

TRAPSJavaThread* __the_thread__) {

3218

const u1* const current_mark = cfs->current();

3219

u2 length = 0;

3220

if (nest_members_attribute_start != NULL__null) {

3221

cfs->set_current(nest_members_attribute_start);

3222

cfs->guarantee_more(2, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0); // length

3223

length = cfs->get_u2_fast();

3224

}

3225

const int size = length;

3226

Array<u2>* const nest_members = MetadataFactory::new_array<u2>(_loader_data, size, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3227

_nest_members = nest_members;

3228

3229

int index = 0;

3230

cfs->guarantee_more(2 * length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3231

for (int n = 0; n < length; n++) {

3232

const u2 class_info_index = cfs->get_u2_fast();

3233

check_property(

3234

valid_klass_reference_at(class_info_index),

3235

"Nest member class_info_index %u has bad constant type in class file %s",

3236

class_info_index, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3237

nest_members->at_put(index++, class_info_index);

3238

}

3239

assert(index == size, "wrong size")do { if (!(index == size)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3239, "assert(" "index == size" ") failed", "wrong size"); ::
breakpoint(); } } while (0);

3240

3241

// Restore buffer's current position.

3242

cfs->set_current(current_mark);

3243

3244

return length;

3245

}

3246

3247

u2 ClassFileParser::parse_classfile_permitted_subclasses_attribute(const ClassFileStream* const cfs,

3248

const u1* const permitted_subclasses_attribute_start,

3249

TRAPSJavaThread* __the_thread__) {

3250

const u1* const current_mark = cfs->current();

3251

u2 length = 0;

3252

if (permitted_subclasses_attribute_start != NULL__null) {

3253

cfs->set_current(permitted_subclasses_attribute_start);

3254

cfs->guarantee_more(2, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0); // length

3255

length = cfs->get_u2_fast();

3256

}

3257

const int size = length;

3258

Array<u2>* const permitted_subclasses = MetadataFactory::new_array<u2>(_loader_data, size, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3259

_permitted_subclasses = permitted_subclasses;

3260

3261

if (length > 0) {

3262

int index = 0;

3263

cfs->guarantee_more(2 * length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3264

for (int n = 0; n < length; n++) {

3265

const u2 class_info_index = cfs->get_u2_fast();

3266

check_property(

3267

valid_klass_reference_at(class_info_index),

3268

"Permitted subclass class_info_index %u has bad constant type in class file %s",

3269

class_info_index, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3270

permitted_subclasses->at_put(index++, class_info_index);

3271

}

3272

assert(index == size, "wrong size")do { if (!(index == size)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3272, "assert(" "index == size" ") failed", "wrong size"); ::
breakpoint(); } } while (0);

3273

}

3274

3275

// Restore buffer's current position.

3276

cfs->set_current(current_mark);

3277

3278

return length;

3279

}

3280

3281

// Record {

3282

// u2 attribute_name_index;

3283

// u4 attribute_length;

3284

// u2 components_count;

3285

// component_info components[components_count];

3286

// }

3287

// component_info {

3288

// u2 name_index;

3289

// u2 descriptor_index

3290

// u2 attributes_count;

3291

// attribute_info_attributes[attributes_count];

3292

// }

3293

u2 ClassFileParser::parse_classfile_record_attribute(const ClassFileStream* const cfs,

3294

const ConstantPool* cp,

3295

const u1* const record_attribute_start,

3296

TRAPSJavaThread* __the_thread__) {

3297

const u1* const current_mark = cfs->current();

3298

int components_count = 0;

3299

unsigned int calculate_attr_size = 0;

3300

if (record_attribute_start != NULL__null) {

3301

cfs->set_current(record_attribute_start);

3302

cfs->guarantee_more(2, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0); // num of components

3303

components_count = (int)cfs->get_u2_fast();

3304

calculate_attr_size = 2;

3305

}

3306

3307

Array<RecordComponent*>* const record_components =

3308

MetadataFactory::new_array<RecordComponent*>(_loader_data, components_count, NULL__null, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3309

_record_components = record_components;

3310

3311

for (int x = 0; x < components_count; x++) {

3312

cfs->guarantee_more(6, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0); // name_index, descriptor_index, attributes_count

3313

3314

const u2 name_index = cfs->get_u2_fast();

3315

check_property(valid_symbol_at(name_index),

3316

"Invalid constant pool index %u for name in Record attribute in class file %s",

3317

name_index, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3318

const Symbol* const name = cp->symbol_at(name_index);

3319

verify_legal_field_name(name, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3320

3321

const u2 descriptor_index = cfs->get_u2_fast();

3322

check_property(valid_symbol_at(descriptor_index),

3323

"Invalid constant pool index %u for descriptor in Record attribute in class file %s",

3324

descriptor_index, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3325

const Symbol* const descr = cp->symbol_at(descriptor_index);

3326

verify_legal_field_signature(name, descr, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3327

3328

const u2 attributes_count = cfs->get_u2_fast();

3329

calculate_attr_size += 6;

3330

u2 generic_sig_index = 0;

3331

const u1* runtime_visible_annotations = NULL__null;

3332

int runtime_visible_annotations_length = 0;

3333

const u1* runtime_invisible_annotations = NULL__null;

3334

int runtime_invisible_annotations_length = 0;

3335

bool runtime_invisible_annotations_exists = false;

3336

const u1* runtime_visible_type_annotations = NULL__null;

3337

int runtime_visible_type_annotations_length = 0;

3338

const u1* runtime_invisible_type_annotations = NULL__null;

3339

int runtime_invisible_type_annotations_length = 0;

3340

bool runtime_invisible_type_annotations_exists = false;

3341

3342

// Expected attributes for record components are Signature, Runtime(In)VisibleAnnotations,

3343

// and Runtime(In)VisibleTypeAnnotations. Other attributes are ignored.

3344

for (int y = 0; y < attributes_count; y++) {

3345

cfs->guarantee_more(6, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0); // attribute_name_index, attribute_length

3346

const u2 attribute_name_index = cfs->get_u2_fast();

3347

const u4 attribute_length = cfs->get_u4_fast();

3348

calculate_attr_size += 6;

3349

check_property(

3350

valid_symbol_at(attribute_name_index),

3351

"Invalid Record attribute name index %u in class file %s",

3352

attribute_name_index, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3353

3354

const Symbol* const attribute_name = cp->symbol_at(attribute_name_index);

3355

if (attribute_name == vmSymbols::tag_signature()) {

3356

if (generic_sig_index != 0) {

3357

classfile_parse_error(

3358

"Multiple Signature attributes for Record component in class file %s",

3359

THREAD__the_thread__);

3360

return 0;

3361

}

3362

if (attribute_length != 2) {

3363

classfile_parse_error(

3364

"Invalid Signature attribute length %u in Record component in class file %s",

3365

attribute_length, THREAD__the_thread__);

3366

return 0;

3367

}

3368

generic_sig_index = parse_generic_signature_attribute(cfs, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3369

3370

} else if (attribute_name == vmSymbols::tag_runtime_visible_annotations()) {

3371

if (runtime_visible_annotations != NULL__null) {

3372

classfile_parse_error(

3373

"Multiple RuntimeVisibleAnnotations attributes for Record component in class file %s", THREAD__the_thread__);

3374

return 0;

3375

}

3376

runtime_visible_annotations_length = attribute_length;

3377

runtime_visible_annotations = cfs->current();

3378

3379

assert(runtime_visible_annotations != NULL, "null record component visible annotation")do { if (!(runtime_visible_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3379, "assert(" "runtime_visible_annotations != __null" ") failed"
, "null record component visible annotation"); ::breakpoint()
; } } while (0);

3380

cfs->guarantee_more(runtime_visible_annotations_length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3381

cfs->skip_u1_fast(runtime_visible_annotations_length);

3382

3383

} else if (attribute_name == vmSymbols::tag_runtime_invisible_annotations()) {

3384

if (runtime_invisible_annotations_exists) {

3385

classfile_parse_error(

3386

"Multiple RuntimeInvisibleAnnotations attributes for Record component in class file %s", THREAD__the_thread__);

3387

return 0;

3388

}

3389

runtime_invisible_annotations_exists = true;

3390

if (PreserveAllAnnotations) {

3391

runtime_invisible_annotations_length = attribute_length;

3392

runtime_invisible_annotations = cfs->current();

3393

assert(runtime_invisible_annotations != NULL, "null record component invisible annotation")do { if (!(runtime_invisible_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3393, "assert(" "runtime_invisible_annotations != __null" ") failed"
, "null record component invisible annotation"); ::breakpoint
(); } } while (0);

3394

}

3395

cfs->skip_u1(attribute_length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3396

3397

} else if (attribute_name == vmSymbols::tag_runtime_visible_type_annotations()) {

3398

if (runtime_visible_type_annotations != NULL__null) {

3399

classfile_parse_error(

3400

"Multiple RuntimeVisibleTypeAnnotations attributes for Record component in class file %s", THREAD__the_thread__);

3401

return 0;

3402

}

3403

runtime_visible_type_annotations_length = attribute_length;

3404

runtime_visible_type_annotations = cfs->current();

3405

3406

assert(runtime_visible_type_annotations != NULL, "null record component visible type annotation")do { if (!(runtime_visible_type_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3406, "assert(" "runtime_visible_type_annotations != __null"
") failed", "null record component visible type annotation")
; ::breakpoint(); } } while (0);

3407

cfs->guarantee_more(runtime_visible_type_annotations_length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3408

cfs->skip_u1_fast(runtime_visible_type_annotations_length);

3409

3410

} else if (attribute_name == vmSymbols::tag_runtime_invisible_type_annotations()) {

3411

if (runtime_invisible_type_annotations_exists) {

3412

classfile_parse_error(

3413

"Multiple RuntimeInvisibleTypeAnnotations attributes for Record component in class file %s", THREAD__the_thread__);

3414

return 0;

3415

}

3416

runtime_invisible_type_annotations_exists = true;

3417

if (PreserveAllAnnotations) {

3418

runtime_invisible_type_annotations_length = attribute_length;

3419

runtime_invisible_type_annotations = cfs->current();

3420

assert(runtime_invisible_type_annotations != NULL, "null record component invisible type annotation")do { if (!(runtime_invisible_type_annotations != __null)) { (
*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3420, "assert(" "runtime_invisible_type_annotations != __null"
") failed", "null record component invisible type annotation"
); ::breakpoint(); } } while (0);

3421

}

3422

cfs->skip_u1(attribute_length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3423

3424

} else {

3425

// Skip unknown attributes

3426

cfs->skip_u1(attribute_length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3427

}

3428

calculate_attr_size += attribute_length;

3429

} // End of attributes For loop

3430

3431

AnnotationArray* annotations = assemble_annotations(runtime_visible_annotations,

3432

runtime_visible_annotations_length,

3433

runtime_invisible_annotations,

3434

runtime_invisible_annotations_length,

3435

CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3436

AnnotationArray* type_annotations = assemble_annotations(runtime_visible_type_annotations,

3437

runtime_visible_type_annotations_length,

3438

runtime_invisible_type_annotations,

3439

runtime_invisible_type_annotations_length,

3440

CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3441

3442

RecordComponent* record_component =

3443

RecordComponent::allocate(_loader_data, name_index, descriptor_index,

3444

attributes_count, generic_sig_index,

3445

annotations, type_annotations, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

3446

record_components->at_put(x, record_component);

3447

} // End of component processing loop

3448

3449

// Restore buffer's current position.

3450

cfs->set_current(current_mark);

3451

return calculate_attr_size;

3452

}

3453

3454

void ClassFileParser::parse_classfile_synthetic_attribute() {

3455

set_class_synthetic_flag(true);

3456

}

3457

3458

void ClassFileParser::parse_classfile_signature_attribute(const ClassFileStream* const cfs, TRAPSJavaThread* __the_thread__) {

3459

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3459, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

3460

3461

const u2 signature_index = cfs->get_u2(CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3462

check_property(

3463

valid_symbol_at(signature_index),

3464

"Invalid constant pool index %u in Signature attribute in class file %s",

3465

signature_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3466

set_class_generic_signature_index(signature_index);

3467

}

3468

3469

void ClassFileParser::parse_classfile_bootstrap_methods_attribute(const ClassFileStream* const cfs,

3470

ConstantPool* cp,

3471

u4 attribute_byte_length,

3472

TRAPSJavaThread* __the_thread__) {

3473

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3473, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

3474

assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3474, "assert(" "cp != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

3475

3476

const u1* const current_start = cfs->current();

3477

3478

guarantee_property(attribute_byte_length >= sizeof(u2),

3479

"Invalid BootstrapMethods attribute length %u in class file %s",

3480

attribute_byte_length,

3481

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3482

3483

cfs->guarantee_more(attribute_byte_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3484

3485

const int attribute_array_length = cfs->get_u2_fast();

3486

3487

guarantee_property(_max_bootstrap_specifier_index < attribute_array_length,

3488

"Short length on BootstrapMethods in class file %s",

3489

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3490

3491

3492

// The attribute contains a counted array of counted tuples of shorts,

3493

// represending bootstrap specifiers:

3494

// length*{bootstrap_method_index, argument_count*{argument_index}}

3495

const int operand_count = (attribute_byte_length - sizeof(u2)) / sizeof(u2);

3496

// operand_count = number of shorts in attr, except for leading length

3497

3498

// The attribute is copied into a short[] array.

3499

// The array begins with a series of short[2] pairs, one for each tuple.

3500

const int index_size = (attribute_array_length * 2);

3501

3502

Array<u2>* const operands =

3503

MetadataFactory::new_array<u2>(_loader_data, index_size + operand_count, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3504

3505

// Eagerly assign operands so they will be deallocated with the constant

3506

// pool if there is an error.

3507

cp->set_operands(operands);

3508

3509

int operand_fill_index = index_size;

3510

const int cp_size = cp->length();

3511

3512

for (int n = 0; n < attribute_array_length; n++) {

3513

// Store a 32-bit offset into the header of the operand array.

3514

ConstantPool::operand_offset_at_put(operands, n, operand_fill_index);

3515

3516

// Read a bootstrap specifier.

3517

cfs->guarantee_more(sizeof(u2) * 2, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // bsm, argc

3518

const u2 bootstrap_method_index = cfs->get_u2_fast();

3519

const u2 argument_count = cfs->get_u2_fast();

3520

check_property(

3521

valid_cp_range(bootstrap_method_index, cp_size) &&

3522

cp->tag_at(bootstrap_method_index).is_method_handle(),

3523

"bootstrap_method_index %u has bad constant type in class file %s",

3524

bootstrap_method_index,

3525

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3526

3527

guarantee_property((operand_fill_index + 1 + argument_count) < operands->length(),

3528

"Invalid BootstrapMethods num_bootstrap_methods or num_bootstrap_arguments value in class file %s",

3529

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3530

3531

operands->at_put(operand_fill_index++, bootstrap_method_index);

3532

operands->at_put(operand_fill_index++, argument_count);

3533

3534

cfs->guarantee_more(sizeof(u2) * argument_count, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // argv[argc]

3535

for (int j = 0; j < argument_count; j++) {

3536

const u2 argument_index = cfs->get_u2_fast();

3537

check_property(

3538

valid_cp_range(argument_index, cp_size) &&

3539

cp->tag_at(argument_index).is_loadable_constant(),

3540

"argument_index %u has bad constant type in class file %s",

3541

argument_index,

3542

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3543

operands->at_put(operand_fill_index++, argument_index);

3544

}

3545

}

3546

guarantee_property(current_start + attribute_byte_length == cfs->current(),

3547

"Bad length on BootstrapMethods in class file %s",

3548

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3549

}

3550

3551

void ClassFileParser::parse_classfile_attributes(const ClassFileStream* const cfs,

3552

ConstantPool* cp,

3553

ClassFileParser::ClassAnnotationCollector* parsed_annotations,

3554

TRAPSJavaThread* __the_thread__) {

3555

assert(cfs != NULL, "invariant")do { if (!(cfs != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3555, "assert(" "cfs != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

3556

assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3556, "assert(" "cp != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

3557

assert(parsed_annotations != NULL, "invariant")do { if (!(parsed_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3557, "assert(" "parsed_annotations != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

3558

3559

// Set inner classes attribute to default sentinel

3560

_inner_classes = Universe::the_empty_short_array();

3561

// Set nest members attribute to default sentinel

3562

_nest_members = Universe::the_empty_short_array();

3563

// Set _permitted_subclasses attribute to default sentinel

3564

_permitted_subclasses = Universe::the_empty_short_array();

3565

cfs->guarantee_more(2, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // attributes_count

3566

u2 attributes_count = cfs->get_u2_fast();

3567

bool parsed_sourcefile_attribute = false;

3568

bool parsed_innerclasses_attribute = false;

3569

bool parsed_nest_members_attribute = false;

3570

bool parsed_permitted_subclasses_attribute = false;

3571

bool parsed_nest_host_attribute = false;

3572

bool parsed_record_attribute = false;

3573

bool parsed_enclosingmethod_attribute = false;

3574

bool parsed_bootstrap_methods_attribute = false;

3575

const u1* runtime_visible_annotations = NULL__null;

3576

int runtime_visible_annotations_length = 0;

3577

const u1* runtime_invisible_annotations = NULL__null;

3578

int runtime_invisible_annotations_length = 0;

3579

const u1* runtime_visible_type_annotations = NULL__null;

3580

int runtime_visible_type_annotations_length = 0;

3581

const u1* runtime_invisible_type_annotations = NULL__null;

3582

int runtime_invisible_type_annotations_length = 0;

3583

bool runtime_invisible_type_annotations_exists = false;

3584

bool runtime_invisible_annotations_exists = false;

3585

bool parsed_source_debug_ext_annotations_exist = false;

3586

const u1* inner_classes_attribute_start = NULL__null;

3587

u4 inner_classes_attribute_length = 0;

3588

u2 enclosing_method_class_index = 0;

3589

u2 enclosing_method_method_index = 0;

3590

const u1* nest_members_attribute_start = NULL__null;

3591

u4 nest_members_attribute_length = 0;

3592

const u1* record_attribute_start = NULL__null;

3593

u4 record_attribute_length = 0;

3594

const u1* permitted_subclasses_attribute_start = NULL__null;

3595

u4 permitted_subclasses_attribute_length = 0;

3596

3597

// Iterate over attributes

3598

while (attributes_count--) {

3599

cfs->guarantee_more(6, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // attribute_name_index, attribute_length

3600

const u2 attribute_name_index = cfs->get_u2_fast();

3601

const u4 attribute_length = cfs->get_u4_fast();

3602

check_property(

3603

valid_symbol_at(attribute_name_index),

3604

"Attribute name has bad constant pool index %u in class file %s",

3605

attribute_name_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3606

const Symbol* const tag = cp->symbol_at(attribute_name_index);

3607

if (tag == vmSymbols::tag_source_file()) {

3608

// Check for SourceFile tag

3609

if (_need_verify) {

3610

guarantee_property(attribute_length == 2, "Wrong SourceFile attribute length in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3611

}

3612

if (parsed_sourcefile_attribute) {

3613

classfile_parse_error("Multiple SourceFile attributes in class file %s", THREAD__the_thread__);

3614

return;

3615

} else {

3616

parsed_sourcefile_attribute = true;

3617

}

3618

parse_classfile_sourcefile_attribute(cfs, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3619

} else if (tag == vmSymbols::tag_source_debug_extension()) {

3620

// Check for SourceDebugExtension tag

3621

if (parsed_source_debug_ext_annotations_exist) {

3622

classfile_parse_error(

3623

"Multiple SourceDebugExtension attributes in class file %s", THREAD__the_thread__);

3624

return;

3625

}

3626

parsed_source_debug_ext_annotations_exist = true;

3627

parse_classfile_source_debug_extension_attribute(cfs, (int)attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3628

} else if (tag == vmSymbols::tag_inner_classes()) {

3629

// Check for InnerClasses tag

3630

if (parsed_innerclasses_attribute) {

3631

classfile_parse_error("Multiple InnerClasses attributes in class file %s", THREAD__the_thread__);

3632

return;

3633

} else {

3634

parsed_innerclasses_attribute = true;

3635

}

3636

inner_classes_attribute_start = cfs->current();

3637

inner_classes_attribute_length = attribute_length;

3638

cfs->skip_u1(inner_classes_attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3639

} else if (tag == vmSymbols::tag_synthetic()) {

3640

// Check for Synthetic tag

3641

// Shouldn't we check that the synthetic flags wasn't already set? - not required in spec

3642

if (attribute_length != 0) {

3643

classfile_parse_error(

3644

"Invalid Synthetic classfile attribute length %u in class file %s",

3645

attribute_length, THREAD__the_thread__);

3646

return;

3647

}

3648

parse_classfile_synthetic_attribute();

3649

} else if (tag == vmSymbols::tag_deprecated()) {

3650

// Check for Deprecated tag - 4276120

3651

if (attribute_length != 0) {

3652

classfile_parse_error(

3653

"Invalid Deprecated classfile attribute length %u in class file %s",

3654

attribute_length, THREAD__the_thread__);

3655

return;

3656

}

3657

} else if (_major_version >= JAVA_1_5_VERSION49) {

3658

if (tag == vmSymbols::tag_signature()) {

3659

if (_generic_signature_index != 0) {

3660

classfile_parse_error(

3661

"Multiple Signature attributes in class file %s", THREAD__the_thread__);

3662

return;

3663

}

3664

if (attribute_length != 2) {

3665

classfile_parse_error(

3666

"Wrong Signature attribute length %u in class file %s",

3667

attribute_length, THREAD__the_thread__);

3668

return;

3669

}

3670

parse_classfile_signature_attribute(cfs, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3671

} else if (tag == vmSymbols::tag_runtime_visible_annotations()) {

3672

if (runtime_visible_annotations != NULL__null) {

3673

classfile_parse_error(

3674

"Multiple RuntimeVisibleAnnotations attributes in class file %s", THREAD__the_thread__);

3675

return;

3676

}

3677

runtime_visible_annotations_length = attribute_length;

3678

runtime_visible_annotations = cfs->current();

3679

assert(runtime_visible_annotations != NULL, "null visible annotations")do { if (!(runtime_visible_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3679, "assert(" "runtime_visible_annotations != __null" ") failed"
, "null visible annotations"); ::breakpoint(); } } while (0);

3680

cfs->guarantee_more(runtime_visible_annotations_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3681

parse_annotations(cp,

3682

runtime_visible_annotations,

3683

runtime_visible_annotations_length,

3684

parsed_annotations,

3685

_loader_data,

3686

_can_access_vm_annotations);

3687

cfs->skip_u1_fast(runtime_visible_annotations_length);

3688

} else if (tag == vmSymbols::tag_runtime_invisible_annotations()) {

3689

if (runtime_invisible_annotations_exists) {

3690

classfile_parse_error(

3691

"Multiple RuntimeInvisibleAnnotations attributes in class file %s", THREAD__the_thread__);

3692

return;

3693

}

3694

runtime_invisible_annotations_exists = true;

3695

if (PreserveAllAnnotations) {

3696

runtime_invisible_annotations_length = attribute_length;

3697

runtime_invisible_annotations = cfs->current();

3698

assert(runtime_invisible_annotations != NULL, "null invisible annotations")do { if (!(runtime_invisible_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3698, "assert(" "runtime_invisible_annotations != __null" ") failed"
, "null invisible annotations"); ::breakpoint(); } } while (0
);

3699

}

3700

cfs->skip_u1(attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3701

} else if (tag == vmSymbols::tag_enclosing_method()) {

3702

if (parsed_enclosingmethod_attribute) {

3703

classfile_parse_error("Multiple EnclosingMethod attributes in class file %s", THREAD__the_thread__);

3704

return;

3705

} else {

3706

parsed_enclosingmethod_attribute = true;

3707

}

3708

guarantee_property(attribute_length == 4,

3709

"Wrong EnclosingMethod attribute length %u in class file %s",

3710

attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3711

cfs->guarantee_more(4, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // class_index, method_index

3712

enclosing_method_class_index = cfs->get_u2_fast();

3713

enclosing_method_method_index = cfs->get_u2_fast();

3714

if (enclosing_method_class_index == 0) {

3715

classfile_parse_error("Invalid class index in EnclosingMethod attribute in class file %s", THREAD__the_thread__);

3716

return;

3717

}

3718

// Validate the constant pool indices and types

3719

check_property(valid_klass_reference_at(enclosing_method_class_index),

3720

"Invalid or out-of-bounds class index in EnclosingMethod attribute in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3721

if (enclosing_method_method_index != 0 &&

3722

(!cp->is_within_bounds(enclosing_method_method_index) ||

3723

!cp->tag_at(enclosing_method_method_index).is_name_and_type())) {

3724

classfile_parse_error("Invalid or out-of-bounds method index in EnclosingMethod attribute in class file %s", THREAD__the_thread__);

3725

return;

3726

}

3727

} else if (tag == vmSymbols::tag_bootstrap_methods() &&

3728

_major_version >= Verifier::INVOKEDYNAMIC_MAJOR_VERSION) {

3729

if (parsed_bootstrap_methods_attribute) {

3730

classfile_parse_error("Multiple BootstrapMethods attributes in class file %s", THREAD__the_thread__);

3731

return;

3732

}

3733

parsed_bootstrap_methods_attribute = true;

3734

parse_classfile_bootstrap_methods_attribute(cfs, cp, attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3735

} else if (tag == vmSymbols::tag_runtime_visible_type_annotations()) {

3736

if (runtime_visible_type_annotations != NULL__null) {

3737

classfile_parse_error(

3738

"Multiple RuntimeVisibleTypeAnnotations attributes in class file %s", THREAD__the_thread__);

3739

return;

3740

}

3741

runtime_visible_type_annotations_length = attribute_length;

3742

runtime_visible_type_annotations = cfs->current();

3743

assert(runtime_visible_type_annotations != NULL, "null visible type annotations")do { if (!(runtime_visible_type_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3743, "assert(" "runtime_visible_type_annotations != __null"
") failed", "null visible type annotations"); ::breakpoint()
; } } while (0);

3744

// No need for the VM to parse Type annotations

3745

cfs->skip_u1(runtime_visible_type_annotations_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3746

} else if (tag == vmSymbols::tag_runtime_invisible_type_annotations()) {

3747

if (runtime_invisible_type_annotations_exists) {

3748

classfile_parse_error(

3749

"Multiple RuntimeInvisibleTypeAnnotations attributes in class file %s", THREAD__the_thread__);

3750

return;

3751

} else {

3752

runtime_invisible_type_annotations_exists = true;

3753

}

3754

if (PreserveAllAnnotations) {

3755

runtime_invisible_type_annotations_length = attribute_length;

3756

runtime_invisible_type_annotations = cfs->current();

3757

assert(runtime_invisible_type_annotations != NULL, "null invisible type annotations")do { if (!(runtime_invisible_type_annotations != __null)) { (
*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3757, "assert(" "runtime_invisible_type_annotations != __null"
") failed", "null invisible type annotations"); ::breakpoint
(); } } while (0);

3758

}

3759

cfs->skip_u1(attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3760

} else if (_major_version >= JAVA_11_VERSION55) {

3761

if (tag == vmSymbols::tag_nest_members()) {

3762

// Check for NestMembers tag

3763

if (parsed_nest_members_attribute) {

3764

classfile_parse_error("Multiple NestMembers attributes in class file %s", THREAD__the_thread__);

3765

return;

3766

} else {

3767

parsed_nest_members_attribute = true;

3768

}

3769

if (parsed_nest_host_attribute) {

3770

classfile_parse_error("Conflicting NestHost and NestMembers attributes in class file %s", THREAD__the_thread__);

3771

return;

3772

}

3773

nest_members_attribute_start = cfs->current();

3774

nest_members_attribute_length = attribute_length;

3775

cfs->skip_u1(nest_members_attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3776

} else if (tag == vmSymbols::tag_nest_host()) {

3777

if (parsed_nest_host_attribute) {

3778

classfile_parse_error("Multiple NestHost attributes in class file %s", THREAD__the_thread__);

3779

return;

3780

} else {

3781

parsed_nest_host_attribute = true;

3782

}

3783

if (parsed_nest_members_attribute) {

3784

classfile_parse_error("Conflicting NestMembers and NestHost attributes in class file %s", THREAD__the_thread__);

3785

return;

3786

}

3787

if (_need_verify) {

3788

guarantee_property(attribute_length == 2, "Wrong NestHost attribute length in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3789

}

3790

cfs->guarantee_more(2, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3791

u2 class_info_index = cfs->get_u2_fast();

3792

check_property(

3793

valid_klass_reference_at(class_info_index),

3794

"Nest-host class_info_index %u has bad constant type in class file %s",

3795

class_info_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3796

_nest_host = class_info_index;

3797

3798

} else if (_major_version >= JAVA_16_VERSION60) {

3799

if (tag == vmSymbols::tag_record()) {

3800

if (parsed_record_attribute) {

3801

classfile_parse_error("Multiple Record attributes in class file %s", THREAD__the_thread__);

3802

return;

3803

}

3804

parsed_record_attribute = true;

3805

record_attribute_start = cfs->current();

3806

record_attribute_length = attribute_length;

3807

} else if (_major_version >= JAVA_17_VERSION61) {

3808

if (tag == vmSymbols::tag_permitted_subclasses()) {

3809

if (parsed_permitted_subclasses_attribute) {

3810

classfile_parse_error("Multiple PermittedSubclasses attributes in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3811

return;

3812

}

3813

// Classes marked ACC_FINAL cannot have a PermittedSubclasses attribute.

3814

if (_access_flags.is_final()) {

3815

classfile_parse_error("PermittedSubclasses attribute in final class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3816

return;

3817

}

3818

parsed_permitted_subclasses_attribute = true;

3819

permitted_subclasses_attribute_start = cfs->current();

3820

permitted_subclasses_attribute_length = attribute_length;

3821

}

3822

}

3823

// Skip attribute_length for any attribute where major_verson >= JAVA_17_VERSION

3824

cfs->skip_u1(attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3825

} else {

3826

// Unknown attribute

3827

cfs->skip_u1(attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3828

}

3829

} else {

3830

// Unknown attribute

3831

cfs->skip_u1(attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3832

}

3833

} else {

3834

// Unknown attribute

3835

cfs->skip_u1(attribute_length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3836

}

3837

}

3838

_class_annotations = assemble_annotations(runtime_visible_annotations,

3839

runtime_visible_annotations_length,

3840

runtime_invisible_annotations,

3841

runtime_invisible_annotations_length,

3842

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3843

_class_type_annotations = assemble_annotations(runtime_visible_type_annotations,

3844

runtime_visible_type_annotations_length,

3845

runtime_invisible_type_annotations,

3846

runtime_invisible_type_annotations_length,

3847

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3848

3849

if (parsed_innerclasses_attribute || parsed_enclosingmethod_attribute) {

3850

const u2 num_of_classes = parse_classfile_inner_classes_attribute(

3851

cfs,

3852

cp,

3853

inner_classes_attribute_start,

3854

parsed_innerclasses_attribute,

3855

enclosing_method_class_index,

3856

enclosing_method_method_index,

3857

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3858

if (parsed_innerclasses_attribute && _need_verify && _major_version >= JAVA_1_5_VERSION49) {

3859

guarantee_property(

3860

inner_classes_attribute_length == sizeof(num_of_classes) + 4 * sizeof(u2) * num_of_classes,

3861

"Wrong InnerClasses attribute length in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3862

}

3863

}

3864

3865

if (parsed_nest_members_attribute) {

3866

const u2 num_of_classes = parse_classfile_nest_members_attribute(

3867

cfs,

3868

nest_members_attribute_start,

3869

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3870

if (_need_verify) {

3871

guarantee_property(

3872

nest_members_attribute_length == sizeof(num_of_classes) + sizeof(u2) * num_of_classes,

3873

"Wrong NestMembers attribute length in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3874

}

3875

}

3876

3877

if (parsed_record_attribute) {

3878

const unsigned int calculated_attr_length = parse_classfile_record_attribute(

3879

cfs,

3880

cp,

3881

record_attribute_start,

3882

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3883

if (_need_verify) {

3884

guarantee_property(record_attribute_length == calculated_attr_length,

3885

"Record attribute has wrong length in class file %s",

3886

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3887

}

3888

}

3889

3890

if (parsed_permitted_subclasses_attribute) {

3891

const u2 num_subclasses = parse_classfile_permitted_subclasses_attribute(

3892

cfs,

3893

permitted_subclasses_attribute_start,

3894

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3895

if (_need_verify) {

3896

guarantee_property(

3897

permitted_subclasses_attribute_length == sizeof(num_subclasses) + sizeof(u2) * num_subclasses,

3898

"Wrong PermittedSubclasses attribute length in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3899

}

3900

}

3901

3902

if (_max_bootstrap_specifier_index >= 0) {

3903

guarantee_property(parsed_bootstrap_methods_attribute,

3904

"Missing BootstrapMethods attribute in class file %s", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3905

}

3906

}

3907

3908

void ClassFileParser::apply_parsed_class_attributes(InstanceKlass* k) {

3909

assert(k != NULL, "invariant")do { if (!(k != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3909, "assert(" "k != __null" ") failed", "invariant"); ::breakpoint
(); } } while (0);

3910

3911

if (_synthetic_flag)

3912

k->set_is_synthetic();

3913

if (_sourcefile_index != 0) {

3914

k->set_source_file_name_index(_sourcefile_index);

3915

}

3916

if (_generic_signature_index != 0) {

3917

k->set_generic_signature_index(_generic_signature_index);

3918

}

3919

if (_sde_buffer != NULL__null) {

3920

k->set_source_debug_extension(_sde_buffer, _sde_length);

3921

}

3922

}

3923

3924

// Create the Annotations object that will

3925

// hold the annotations array for the Klass.

3926

void ClassFileParser::create_combined_annotations(TRAPSJavaThread* __the_thread__) {

3927

if (_class_annotations == NULL__null &&

3928

_class_type_annotations == NULL__null &&

3929

_fields_annotations == NULL__null &&

3930

_fields_type_annotations == NULL__null) {

3931

// Don't create the Annotations object unnecessarily.

3932

return;

3933

}

3934

3935

Annotations* const annotations = Annotations::allocate(_loader_data, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

3936

annotations->set_class_annotations(_class_annotations);

3937

annotations->set_class_type_annotations(_class_type_annotations);

3938

annotations->set_fields_annotations(_fields_annotations);

3939

annotations->set_fields_type_annotations(_fields_type_annotations);

3940

3941

// This is the Annotations object that will be

3942

// assigned to InstanceKlass being constructed.

3943

_combined_annotations = annotations;

3944

3945

// The annotations arrays below has been transfered the

3946

// _combined_annotations so these fields can now be cleared.

3947

_class_annotations = NULL__null;

3948

_class_type_annotations = NULL__null;

3949

_fields_annotations = NULL__null;

3950

_fields_type_annotations = NULL__null;

3951

}

3952

3953

// Transfer ownership of metadata allocated to the InstanceKlass.

3954

void ClassFileParser::apply_parsed_class_metadata(

3955

InstanceKlass* this_klass,

3956

int java_fields_count) {

3957

assert(this_klass != NULL, "invariant")do { if (!(this_klass != __null)) { (*g_assert_poison) = 'X';
; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 3957, "assert(" "this_klass != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

3958

3959

_cp->set_pool_holder(this_klass);

3960

this_klass->set_constants(_cp);

3961

this_klass->set_fields(_fields, java_fields_count);

3962

this_klass->set_methods(_methods);

3963

this_klass->set_inner_classes(_inner_classes);

3964

this_klass->set_nest_members(_nest_members);

3965

this_klass->set_nest_host_index(_nest_host);

3966

this_klass->set_annotations(_combined_annotations);

3967

this_klass->set_permitted_subclasses(_permitted_subclasses);

3968

this_klass->set_record_components(_record_components);

3969

// Delay the setting of _local_interfaces and _transitive_interfaces until after

3970

// initialize_supers() in fill_instance_klass(). It is because the _local_interfaces could

3971

// be shared with _transitive_interfaces and _transitive_interfaces may be shared with

3972

// its _super. If an OOM occurs while loading the current klass, its _super field

3973

// may not have been set. When GC tries to free the klass, the _transitive_interfaces

3974

// may be deallocated mistakenly in InstanceKlass::deallocate_interfaces(). Subsequent

3975

// dereferences to the deallocated _transitive_interfaces will result in a crash.

3976

3977

// Clear out these fields so they don't get deallocated by the destructor

3978

clear_class_metadata();

3979

}

3980

3981

AnnotationArray* ClassFileParser::assemble_annotations(const u1* const runtime_visible_annotations,

3982

int runtime_visible_annotations_length,

3983

const u1* const runtime_invisible_annotations,

3984

int runtime_invisible_annotations_length,

3985

TRAPSJavaThread* __the_thread__) {

3986

AnnotationArray* annotations = NULL__null;

3987

if (runtime_visible_annotations != NULL__null ||

3988

runtime_invisible_annotations != NULL__null) {

3989

annotations = MetadataFactory::new_array<u1>(_loader_data,

3990

runtime_visible_annotations_length +

3991

runtime_invisible_annotations_length,

3992

CHECK_(annotations)__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return annotations; (void)(0);

3993

if (runtime_visible_annotations != NULL__null) {

3994

for (int i = 0; i < runtime_visible_annotations_length; i++) {

3995

annotations->at_put(i, runtime_visible_annotations[i]);

3996

}

3997

}

3998

if (runtime_invisible_annotations != NULL__null) {

3999

for (int i = 0; i < runtime_invisible_annotations_length; i++) {

4000

int append = runtime_visible_annotations_length+i;

4001

annotations->at_put(append, runtime_invisible_annotations[i]);

4002

}

4003

}

4004

}

4005

return annotations;

4006

}

4007

4008

const InstanceKlass* ClassFileParser::parse_super_class(ConstantPool* const cp,

4009

const int super_class_index,

4010

const bool need_verify,

4011

TRAPSJavaThread* __the_thread__) {

4012

assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4012, "assert(" "cp != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

4013

const InstanceKlass* super_klass = NULL__null;

4014

4015

if (super_class_index == 0) {

4016

check_property(_class_name == vmSymbols::java_lang_Object(),

4017

"Invalid superclass index %u in class file %s",

4018

super_class_index,

4019

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

4020

} else {

4021

check_property(valid_klass_reference_at(super_class_index),

4022

"Invalid superclass index %u in class file %s",

4023

super_class_index,

4024

CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

4025

// The class name should be legal because it is checked when parsing constant pool.

4026

// However, make sure it is not an array type.

4027

bool is_array = false;

4028

if (cp->tag_at(super_class_index).is_klass()) {

4029

super_klass = InstanceKlass::cast(cp->resolved_klass_at(super_class_index));

4030

if (need_verify)

4031

is_array = super_klass->is_array_klass();

4032

} else if (need_verify) {

4033

is_array = (cp->klass_name_at(super_class_index)->char_at(0) == JVM_SIGNATURE_ARRAY);

4034

}

4035

if (need_verify) {

4036

guarantee_property(!is_array,

4037

"Bad superclass name in class file %s", CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

4038

}

4039

}

4040

return super_klass;

4041

}

4042

4043

OopMapBlocksBuilder::OopMapBlocksBuilder(unsigned int max_blocks) {

4044

_max_nonstatic_oop_maps = max_blocks;

4045

_nonstatic_oop_map_count = 0;

4046

if (max_blocks == 0) {

4047

_nonstatic_oop_maps = NULL__null;

4048

} else {

4049

_nonstatic_oop_maps =

4050

NEW_RESOURCE_ARRAY(OopMapBlock, _max_nonstatic_oop_maps)(OopMapBlock*) resource_allocate_bytes((_max_nonstatic_oop_maps
) * sizeof(OopMapBlock));

4051

memset(_nonstatic_oop_maps, 0, sizeof(OopMapBlock) * max_blocks);

4052

}

4053

}

4054

4055

OopMapBlock* OopMapBlocksBuilder::last_oop_map() const {

4056

assert(_nonstatic_oop_map_count > 0, "Has no oop maps")do { if (!(_nonstatic_oop_map_count > 0)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4056, "assert(" "_nonstatic_oop_map_count > 0" ") failed"
, "Has no oop maps"); ::breakpoint(); } } while (0);

4057

return _nonstatic_oop_maps + (_nonstatic_oop_map_count - 1);

4058

}

4059

4060

// addition of super oop maps

4061

void OopMapBlocksBuilder::initialize_inherited_blocks(OopMapBlock* blocks, unsigned int nof_blocks) {

4062

assert(nof_blocks && _nonstatic_oop_map_count == 0 &&do { if (!(nof_blocks && _nonstatic_oop_map_count == 0
&& nof_blocks <= _max_nonstatic_oop_maps)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4063, "assert(" "nof_blocks && _nonstatic_oop_map_count == 0 && nof_blocks <= _max_nonstatic_oop_maps"
") failed", "invariant"); ::breakpoint(); } } while (0)

4063

nof_blocks <= _max_nonstatic_oop_maps, "invariant")do { if (!(nof_blocks && _nonstatic_oop_map_count == 0
&& nof_blocks <= _max_nonstatic_oop_maps)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4063, "assert(" "nof_blocks && _nonstatic_oop_map_count == 0 && nof_blocks <= _max_nonstatic_oop_maps"
") failed", "invariant"); ::breakpoint(); } } while (0);

4064

4065

memcpy(_nonstatic_oop_maps, blocks, sizeof(OopMapBlock) * nof_blocks);

4066

_nonstatic_oop_map_count += nof_blocks;

4067

}

4068

4069

// collection of oops

4070

void OopMapBlocksBuilder::add(int offset, int count) {

4071

if (_nonstatic_oop_map_count == 0) {

4072

_nonstatic_oop_map_count++;

4073

}

4074

OopMapBlock* nonstatic_oop_map = last_oop_map();

4075

if (nonstatic_oop_map->count() == 0) { // Unused map, set it up

4076

nonstatic_oop_map->set_offset(offset);

4077

nonstatic_oop_map->set_count(count);

4078

} else if (nonstatic_oop_map->is_contiguous(offset)) { // contiguous, add

4079

nonstatic_oop_map->increment_count(count);

4080

} else { // Need a new one...

4081

_nonstatic_oop_map_count++;

4082

assert(_nonstatic_oop_map_count <= _max_nonstatic_oop_maps, "range check")do { if (!(_nonstatic_oop_map_count <= _max_nonstatic_oop_maps
)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4082, "assert(" "_nonstatic_oop_map_count <= _max_nonstatic_oop_maps"
") failed", "range check"); ::breakpoint(); } } while (0);

4083

nonstatic_oop_map = last_oop_map();

4084

nonstatic_oop_map->set_offset(offset);

4085

nonstatic_oop_map->set_count(count);

4086

}

4087

}

4088

4089

// general purpose copy, e.g. into allocated instanceKlass

4090

void OopMapBlocksBuilder::copy(OopMapBlock* dst) {

4091

if (_nonstatic_oop_map_count != 0) {

4092

memcpy(dst, _nonstatic_oop_maps, sizeof(OopMapBlock) * _nonstatic_oop_map_count);

4093

}

4094

}

4095

4096

// Sort and compact adjacent blocks

4097

void OopMapBlocksBuilder::compact() {

4098

if (_nonstatic_oop_map_count <= 1) {

4099

return;

4100

}

4101

/*

4102

* Since field layout sneeks in oops before values, we will be able to condense

4103

* blocks. There is potential to compact between super, own refs and values

4104

* containing refs.

4105

*

4106

* Currently compaction is slightly limited due to values being 8 byte aligned.

4107

* This may well change: FixMe if it doesn't, the code below is fairly general purpose

4108

* and maybe it doesn't need to be.

4109

*/

4110

qsort(_nonstatic_oop_maps, _nonstatic_oop_map_count, sizeof(OopMapBlock),

4111

(_sort_Fn)OopMapBlock::compare_offset);

4112

if (_nonstatic_oop_map_count < 2) {

4113

return;

4114

}

4115

4116

// Make a temp copy, and iterate through and copy back into the original

4117

ResourceMark rm;

4118

OopMapBlock* oop_maps_copy =

4119

NEW_RESOURCE_ARRAY(OopMapBlock, _nonstatic_oop_map_count)(OopMapBlock*) resource_allocate_bytes((_nonstatic_oop_map_count
) * sizeof(OopMapBlock));

4120

OopMapBlock* oop_maps_copy_end = oop_maps_copy + _nonstatic_oop_map_count;

4121

copy(oop_maps_copy);

4122

OopMapBlock* nonstatic_oop_map = _nonstatic_oop_maps;

4123

unsigned int new_count = 1;

4124

oop_maps_copy++;

4125

while(oop_maps_copy < oop_maps_copy_end) {

4126

assert(nonstatic_oop_map->offset() < oop_maps_copy->offset(), "invariant")do { if (!(nonstatic_oop_map->offset() < oop_maps_copy->
offset())) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4126, "assert(" "nonstatic_oop_map->offset() < oop_maps_copy->offset()"
") failed", "invariant"); ::breakpoint(); } } while (0);

4127

if (nonstatic_oop_map->is_contiguous(oop_maps_copy->offset())) {

4128

nonstatic_oop_map->increment_count(oop_maps_copy->count());

4129

} else {

4130

nonstatic_oop_map++;

4131

new_count++;

4132

nonstatic_oop_map->set_offset(oop_maps_copy->offset());

4133

nonstatic_oop_map->set_count(oop_maps_copy->count());

4134

}

4135

oop_maps_copy++;

4136

}

4137

assert(new_count <= _nonstatic_oop_map_count, "end up with more maps after compact() ?")do { if (!(new_count <= _nonstatic_oop_map_count)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4137, "assert(" "new_count <= _nonstatic_oop_map_count" ") failed"
, "end up with more maps after compact() ?"); ::breakpoint();
} } while (0);

4138

_nonstatic_oop_map_count = new_count;

4139

}

4140

4141

void OopMapBlocksBuilder::print_on(outputStream* st) const {

4142

st->print_cr(" OopMapBlocks: %3d /%3d", _nonstatic_oop_map_count, _max_nonstatic_oop_maps);

4143

if (_nonstatic_oop_map_count > 0) {

4144

OopMapBlock* map = _nonstatic_oop_maps;

4145

OopMapBlock* last_map = last_oop_map();

4146

assert(map <= last_map, "Last less than first")do { if (!(map <= last_map)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4146, "assert(" "map <= last_map" ") failed", "Last less than first"
); ::breakpoint(); } } while (0);

4147

while (map <= last_map) {

4148

st->print_cr(" Offset: %3d -%3d Count: %3d", map->offset(),

4149

map->offset() + map->offset_span() - heapOopSize, map->count());

4150

map++;

4151

}

4152

}

4153

}

4154

4155

void OopMapBlocksBuilder::print_value_on(outputStream* st) const {

4156

print_on(st);

4157

}

4158

4159

void ClassFileParser::set_precomputed_flags(InstanceKlass* ik) {

4160

assert(ik != NULL, "invariant")do { if (!(ik != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4160, "assert(" "ik != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

4161

4162

const Klass* const super = ik->super();

4163

4164

// Check if this klass has an empty finalize method (i.e. one with return bytecode only),

4165

// in which case we don't have to register objects as finalizable

4166

if (!_has_empty_finalizer) {

4167

if (_has_finalizer ||

4168

(super != NULL__null && super->has_finalizer())) {

4169

ik->set_has_finalizer();

4170

}

4171

}

4172

4173

#ifdef ASSERT1

4174

bool f = false;

4175

const Method* const m = ik->lookup_method(vmSymbols::finalize_method_name(),

4176

vmSymbols::void_method_signature());

4177

if (InstanceKlass::is_finalization_enabled() &&

4178

(m != NULL__null) && !m->is_empty_method()) {

4179

f = true;

4180

}

4181

4182

// Spec doesn't prevent agent from redefinition of empty finalizer.

4183

// Despite the fact that it's generally bad idea and redefined finalizer

4184

// will not work as expected we shouldn't abort vm in this case

4185

if (!ik->has_redefined_this_or_super()) {

4186

assert(ik->has_finalizer() == f, "inconsistent has_finalizer")do { if (!(ik->has_finalizer() == f)) { (*g_assert_poison)
= 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4186, "assert(" "ik->has_finalizer() == f" ") failed", "inconsistent has_finalizer"
); ::breakpoint(); } } while (0);

4187

}

4188

#endif

4189

4190

// Check if this klass supports the java.lang.Cloneable interface

4191

if (vmClasses::Cloneable_klass_loaded()) {

4192

if (ik->is_subtype_of(vmClasses::Cloneable_klass())) {

4193

ik->set_is_cloneable();

4194

}

4195

}

4196

4197

// Check if this klass has a vanilla default constructor

4198

if (super == NULL__null) {

4199

// java.lang.Object has empty default constructor

4200

ik->set_has_vanilla_constructor();

4201

} else {

4202

if (super->has_vanilla_constructor() &&

4203

_has_vanilla_constructor) {

4204

ik->set_has_vanilla_constructor();

4205

}

4206

#ifdef ASSERT1

4207

bool v = false;

4208

if (super->has_vanilla_constructor()) {

4209

const Method* const constructor =

4210

ik->find_method(vmSymbols::object_initializer_name(),

4211

vmSymbols::void_method_signature());

4212

if (constructor != NULL__null && constructor->is_vanilla_constructor()) {

4213

v = true;

4214

}

4215

}

4216

assert(v == ik->has_vanilla_constructor(), "inconsistent has_vanilla_constructor")do { if (!(v == ik->has_vanilla_constructor())) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4216, "assert(" "v == ik->has_vanilla_constructor()" ") failed"
, "inconsistent has_vanilla_constructor"); ::breakpoint(); } }
while (0);

4217

#endif

4218

}

4219

4220

// If it cannot be fast-path allocated, set a bit in the layout helper.

4221

// See documentation of InstanceKlass::can_be_fastpath_allocated().

4222

assert(ik->size_helper() > 0, "layout_helper is initialized")do { if (!(ik->size_helper() > 0)) { (*g_assert_poison)
= 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4222, "assert(" "ik->size_helper() > 0" ") failed", "layout_helper is initialized"
); ::breakpoint(); } } while (0);

4223

if ((!RegisterFinalizersAtInit && ik->has_finalizer())

4224

|| ik->is_abstract() || ik->is_interface()

4225

|| (ik->name() == vmSymbols::java_lang_Class() && ik->class_loader() == NULL__null)

4226

|| ik->size_helper() >= FastAllocateSizeLimit) {

4227

// Forbid fast-path allocation.

4228

const jint lh = Klass::instance_layout_helper(ik->size_helper(), true);

4229

ik->set_layout_helper(lh);

4230

}

4231

}

4232

4233

// utility methods for appending an array with check for duplicates

4234

4235

static void append_interfaces(GrowableArray<InstanceKlass*>* result,

4236

const Array<InstanceKlass*>* const ifs) {

4237

// iterate over new interfaces

4238

for (int i = 0; i < ifs->length(); i++) {

4239

InstanceKlass* const e = ifs->at(i);

4240

assert(e->is_klass() && e->is_interface(), "just checking")do { if (!(e->is_klass() && e->is_interface()))
{ (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4240, "assert(" "e->is_klass() && e->is_interface()"
") failed", "just checking"); ::breakpoint(); } } while (0);

4241

// add new interface

4242

result->append_if_missing(e);

4243

}

4244

}

4245

4246

static Array<InstanceKlass*>* compute_transitive_interfaces(const InstanceKlass* super,

4247

Array<InstanceKlass*>* local_ifs,

4248

ClassLoaderData* loader_data,

4249

TRAPSJavaThread* __the_thread__) {

4250

assert(local_ifs != NULL, "invariant")do { if (!(local_ifs != __null)) { (*g_assert_poison) = 'X';;
report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4250, "assert(" "local_ifs != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

4251

assert(loader_data != NULL, "invariant")do { if (!(loader_data != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4251, "assert(" "loader_data != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

4252

4253

// Compute maximum size for transitive interfaces

4254

int max_transitive_size = 0;

4255

int super_size = 0;

4256

// Add superclass transitive interfaces size

4257

if (super != NULL__null) {

4258

super_size = super->transitive_interfaces()->length();

4259

max_transitive_size += super_size;

4260

}

4261

// Add local interfaces' super interfaces

4262

const int local_size = local_ifs->length();

4263

for (int i = 0; i < local_size; i++) {

4264

InstanceKlass* const l = local_ifs->at(i);

4265

max_transitive_size += l->transitive_interfaces()->length();

4266

}

4267

// Finally add local interfaces

4268

max_transitive_size += local_size;

4269

// Construct array

4270

if (max_transitive_size == 0) {

4271

// no interfaces, use canonicalized array

4272

return Universe::the_empty_instance_klass_array();

4273

} else if (max_transitive_size == super_size) {

4274

// no new local interfaces added, share superklass' transitive interface array

4275

return super->transitive_interfaces();

4276

} else if (max_transitive_size == local_size) {

4277

// only local interfaces added, share local interface array

4278

return local_ifs;

4279

} else {

4280

ResourceMark rm;

4281

GrowableArray<InstanceKlass*>* const result = new GrowableArray<InstanceKlass*>(max_transitive_size);

4282

4283

// Copy down from superclass

4284

if (super != NULL__null) {

4285

append_interfaces(result, super->transitive_interfaces());

4286

}

4287

4288

// Copy down from local interfaces' superinterfaces

4289

for (int i = 0; i < local_size; i++) {

4290

InstanceKlass* const l = local_ifs->at(i);

4291

append_interfaces(result, l->transitive_interfaces());

4292

}

4293

// Finally add local interfaces

4294

append_interfaces(result, local_ifs);

4295

4296

// length will be less than the max_transitive_size if duplicates were removed

4297

const int length = result->length();

4298

assert(length <= max_transitive_size, "just checking")do { if (!(length <= max_transitive_size)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4298, "assert(" "length <= max_transitive_size" ") failed"
, "just checking"); ::breakpoint(); } } while (0);

4299

Array<InstanceKlass*>* const new_result =

4300

MetadataFactory::new_array<InstanceKlass*>(loader_data, length, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

4301

for (int i = 0; i < length; i++) {

4302

InstanceKlass* const e = result->at(i);

4303

assert(e != NULL, "just checking")do { if (!(e != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4303, "assert(" "e != __null" ") failed", "just checking");
::breakpoint(); } } while (0);

4304

new_result->at_put(i, e);

4305

}

4306

return new_result;

4307

}

4308

}

4309

4310

void ClassFileParser::check_super_class_access(const InstanceKlass* this_klass, TRAPSJavaThread* __the_thread__) {

4311

assert(this_klass != NULL, "invariant")do { if (!(this_klass != __null)) { (*g_assert_poison) = 'X';
; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4311, "assert(" "this_klass != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

4312

const Klass* const super = this_klass->super();

4313

4314

if (super != NULL__null) {

4315

const InstanceKlass* super_ik = InstanceKlass::cast(super);

4316

4317

if (super->is_final()) {

4318

classfile_icce_error("class %s cannot inherit from final class %s", super_ik, THREAD__the_thread__);

4319

return;

4320

}

4321

4322

if (super_ik->is_sealed() && !super_ik->has_as_permitted_subclass(this_klass)) {

4323

classfile_icce_error("class %s cannot inherit from sealed class %s", super_ik, THREAD__the_thread__);

4324

return;

4325

}

4326

4327

// If the loader is not the boot loader then throw an exception if its

4328

// superclass is in package jdk.internal.reflect and its loader is not a

4329

// special reflection class loader

4330

if (!this_klass->class_loader_data()->is_the_null_class_loader_data()) {

4331

PackageEntry* super_package = super->package();

4332

if (super_package != NULL__null &&

4333

super_package->name()->fast_compare(vmSymbols::jdk_internal_reflect()) == 0 &&

4334

!java_lang_ClassLoader::is_reflection_class_loader(this_klass->class_loader())) {

4335

ResourceMark rm(THREAD__the_thread__);

4336

Exceptions::fthrow(

4337

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4337,

4338

vmSymbols::java_lang_IllegalAccessError(),

4339

"class %s loaded by %s cannot access jdk/internal/reflect superclass %s",

4340

this_klass->external_name(),

4341

this_klass->class_loader_data()->loader_name_and_id(),

4342

super->external_name());

4343

return;

4344

}

4345

}

4346

4347

Reflection::VerifyClassAccessResults vca_result =

4348

Reflection::verify_class_access(this_klass, InstanceKlass::cast(super), false);

4349

if (vca_result != Reflection::ACCESS_OK) {

4350

ResourceMark rm(THREAD__the_thread__);

4351

char* msg = Reflection::verify_class_access_msg(this_klass,

4352

InstanceKlass::cast(super),

4353

vca_result);

4354

if (msg == NULL__null) {

4355

bool same_module = (this_klass->module() == super->module());

4356

Exceptions::fthrow(

4357

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4357,

4358

vmSymbols::java_lang_IllegalAccessError(),

4359

"class %s cannot access its %ssuperclass %s (%s%s%s)",

4360

this_klass->external_name(),

4361

super->is_abstract() ? "abstract " : "",

4362

super->external_name(),

4363

(same_module) ? this_klass->joint_in_module_of_loader(super) : this_klass->class_in_module_of_loader(),

4364

(same_module) ? "" : "; ",

4365

(same_module) ? "" : super->class_in_module_of_loader());

4366

} else {

4367

// Add additional message content.

4368

Exceptions::fthrow(

4369

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4369,

4370

vmSymbols::java_lang_IllegalAccessError(),

4371

"superclass access check failed: %s",

4372

msg);

4373

}

4374

}

4375

}

4376

}

4377

4378

4379

void ClassFileParser::check_super_interface_access(const InstanceKlass* this_klass, TRAPSJavaThread* __the_thread__) {

4380

assert(this_klass != NULL, "invariant")do { if (!(this_klass != __null)) { (*g_assert_poison) = 'X';
; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4380, "assert(" "this_klass != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

4381

const Array<InstanceKlass*>* const local_interfaces = this_klass->local_interfaces();

4382

const int lng = local_interfaces->length();

4383

for (int i = lng - 1; i >= 0; i--) {

4384

InstanceKlass* const k = local_interfaces->at(i);

4385

assert (k != NULL && k->is_interface(), "invalid interface")do { if (!(k != __null && k->is_interface())) { (*
g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4385, "assert(" "k != __null && k->is_interface()"
") failed", "invalid interface"); ::breakpoint(); } } while (
0);

4386

4387

if (k->is_sealed() && !k->has_as_permitted_subclass(this_klass)) {

4388

classfile_icce_error(this_klass->is_interface() ?

4389

"class %s cannot extend sealed interface %s" :

4390

"class %s cannot implement sealed interface %s",

4391

k, THREAD__the_thread__);

4392

return;

4393

}

4394

4395

Reflection::VerifyClassAccessResults vca_result =

4396

Reflection::verify_class_access(this_klass, k, false);

4397

if (vca_result != Reflection::ACCESS_OK) {

4398

ResourceMark rm(THREAD__the_thread__);

4399

char* msg = Reflection::verify_class_access_msg(this_klass,

4400

k,

4401

vca_result);

4402

if (msg == NULL__null) {

4403

bool same_module = (this_klass->module() == k->module());

4404

Exceptions::fthrow(

4405

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4405,

4406

vmSymbols::java_lang_IllegalAccessError(),

4407

"class %s cannot access its superinterface %s (%s%s%s)",

4408

this_klass->external_name(),

4409

k->external_name(),

4410

(same_module) ? this_klass->joint_in_module_of_loader(k) : this_klass->class_in_module_of_loader(),

4411

(same_module) ? "" : "; ",

4412

(same_module) ? "" : k->class_in_module_of_loader());

4413

} else {

4414

// Add additional message content.

4415

Exceptions::fthrow(

4416

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4416,

4417

vmSymbols::java_lang_IllegalAccessError(),

4418

"superinterface check failed: %s",

4419

msg);

4420

}

4421

}

4422

}

4423

}

4424

4425

4426

static void check_final_method_override(const InstanceKlass* this_klass, TRAPSJavaThread* __the_thread__) {

4427

assert(this_klass != NULL, "invariant")do { if (!(this_klass != __null)) { (*g_assert_poison) = 'X';
; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4427, "assert(" "this_klass != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

4428

const Array<Method*>* const methods = this_klass->methods();

4429

const int num_methods = methods->length();

4430

4431

// go thru each method and check if it overrides a final method

4432

for (int index = 0; index < num_methods; index++) {

4433

const Method* const m = methods->at(index);

4434

4435

// skip private, static, and <init> methods

4436

if ((!m->is_private() && !m->is_static()) &&

4437

(m->name() != vmSymbols::object_initializer_name())) {

4438

4439

const Symbol* const name = m->name();

4440

const Symbol* const signature = m->signature();

4441

const Klass* k = this_klass->super();

4442

const Method* super_m = NULL__null;

4443

while (k != NULL__null) {

4444

// skip supers that don't have final methods.

4445

if (k->has_final_method()) {

4446

// lookup a matching method in the super class hierarchy

4447

super_m = InstanceKlass::cast(k)->lookup_method(name, signature);

4448

if (super_m == NULL__null) {

4449

break; // didn't find any match; get out

4450

}

4451

4452

if (super_m->is_final() && !super_m->is_static() &&

4453

!super_m->access_flags().is_private()) {

4454

// matching method in super is final, and not static or private

4455

bool can_access = Reflection::verify_member_access(this_klass,

4456

super_m->method_holder(),

4457

super_m->method_holder(),

4458

super_m->access_flags(),

4459

false, false, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

4460

if (can_access) {

4461

// this class can access super final method and therefore override

4462

ResourceMark rm(THREAD__the_thread__);

4463

THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(),{ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4468, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s overrides final method %s.%s%s", this_klass->external_name
(), super_m->method_holder()->external_name(), name->
as_C_string(), signature->as_C_string())); return; }

4464

err_msg("class %s overrides final method %s.%s%s",{ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4468, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s overrides final method %s.%s%s", this_klass->external_name
(), super_m->method_holder()->external_name(), name->
as_C_string(), signature->as_C_string())); return; }

4465

this_klass->external_name(),{ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4468, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s overrides final method %s.%s%s", this_klass->external_name
(), super_m->method_holder()->external_name(), name->
as_C_string(), signature->as_C_string())); return; }

4466

super_m->method_holder()->external_name(),{ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4468, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s overrides final method %s.%s%s", this_klass->external_name
(), super_m->method_holder()->external_name(), name->
as_C_string(), signature->as_C_string())); return; }

4467

name->as_C_string(),{ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4468, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s overrides final method %s.%s%s", this_klass->external_name
(), super_m->method_holder()->external_name(), name->
as_C_string(), signature->as_C_string())); return; }

4468

signature->as_C_string())){ Exceptions::_throw_msg(__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4468, vmSymbols::java_lang_IncompatibleClassChangeError(), err_msg
("class %s overrides final method %s.%s%s", this_klass->external_name
(), super_m->method_holder()->external_name(), name->
as_C_string(), signature->as_C_string())); return; };

4469

}

4470

}

4471

4472

// continue to look from super_m's holder's super.

4473

k = super_m->method_holder()->super();

4474

continue;

4475

}

4476

4477

k = k->super();

4478

}

4479

}

4480

}

4481

}

4482

4483

4484

// assumes that this_klass is an interface

4485

static void check_illegal_static_method(const InstanceKlass* this_klass, TRAPSJavaThread* __the_thread__) {

4486

assert(this_klass != NULL, "invariant")do { if (!(this_klass != __null)) { (*g_assert_poison) = 'X';
; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4486, "assert(" "this_klass != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

4487

assert(this_klass->is_interface(), "not an interface")do { if (!(this_klass->is_interface())) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4487, "assert(" "this_klass->is_interface()" ") failed",
"not an interface"); ::breakpoint(); } } while (0);

4488

const Array<Method*>* methods = this_klass->methods();

4489

const int num_methods = methods->length();

4490

4491

for (int index = 0; index < num_methods; index++) {

4492

const Method* const m = methods->at(index);

4493

// if m is static and not the init method, throw a verify error

4494

if ((m->is_static()) && (m->name() != vmSymbols::class_initializer_name())) {

4495

ResourceMark rm(THREAD__the_thread__);

4496

Exceptions::fthrow(

4497

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4497,

4498

vmSymbols::java_lang_VerifyError(),

4499

"Illegal static method %s in interface %s",

4500

m->name()->as_C_string(),

4501

this_klass->external_name()

4502

);

4503

return;

4504

}

4505

}

4506

}

4507

4508

// utility methods for format checking

4509

4510

void ClassFileParser::verify_legal_class_modifiers(jint flags, TRAPSJavaThread* __the_thread__) const {

4511

const bool is_module = (flags & JVM_ACC_MODULE) != 0;

4512

assert(_major_version >= JAVA_9_VERSION || !is_module, "JVM_ACC_MODULE should not be set")do { if (!(_major_version >= 53 || !is_module)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4512, "assert(" "_major_version >= 53 || !is_module" ") failed"
, "JVM_ACC_MODULE should not be set"); ::breakpoint(); } } while
(0);

4513

if (is_module) {

4514

ResourceMark rm(THREAD__the_thread__);

4515

Exceptions::fthrow(

4516

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4516,

4517

vmSymbols::java_lang_NoClassDefFoundError(),

4518

"%s is not a class because access_flag ACC_MODULE is set",

4519

_class_name->as_C_string());

4520

return;

4521

}

4522

4523

if (!_need_verify) { return; }

4524

4525

const bool is_interface = (flags & JVM_ACC_INTERFACE) != 0;

4526

const bool is_abstract = (flags & JVM_ACC_ABSTRACT) != 0;

4527

const bool is_final = (flags & JVM_ACC_FINAL) != 0;

4528

const bool is_super = (flags & JVM_ACC_SUPER) != 0;

4529

const bool is_enum = (flags & JVM_ACC_ENUM) != 0;

4530

const bool is_annotation = (flags & JVM_ACC_ANNOTATION) != 0;

4531

const bool major_gte_1_5 = _major_version >= JAVA_1_5_VERSION49;

4532

4533

if ((is_abstract && is_final) ||

4534

(is_interface && !is_abstract) ||

4535

(is_interface && major_gte_1_5 && (is_super || is_enum)) ||

4536

(!is_interface && major_gte_1_5 && is_annotation)) {

4537

ResourceMark rm(THREAD__the_thread__);

4538

Exceptions::fthrow(

4539

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4539,

4540

vmSymbols::java_lang_ClassFormatError(),

4541

"Illegal class modifiers in class %s: 0x%X",

4542

_class_name->as_C_string(), flags

4543

);

4544

return;

4545

}

4546

}

4547

4548

static bool has_illegal_visibility(jint flags) {

4549

const bool is_public = (flags & JVM_ACC_PUBLIC) != 0;

4550

const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0;

4551

const bool is_private = (flags & JVM_ACC_PRIVATE) != 0;

4552

4553

return ((is_public && is_protected) ||

4554

(is_public && is_private) ||

4555

(is_protected && is_private));

4556

}

4557

4558

// A legal major_version.minor_version must be one of the following:

4559

//

4560

// Major_version >= 45 and major_version < 56, any minor_version.

4561

// Major_version >= 56 and major_version <= JVM_CLASSFILE_MAJOR_VERSION and minor_version = 0.

4562

// Major_version = JVM_CLASSFILE_MAJOR_VERSION and minor_version = 65535 and --enable-preview is present.

4563

//

4564

void ClassFileParser::verify_class_version(u2 major, u2 minor, Symbol* class_name, TRAPSJavaThread* __the_thread__){

4565

ResourceMark rm(THREAD__the_thread__);

4566

const u2 max_version = JVM_CLASSFILE_MAJOR_VERSION63;

4567

if (major < JAVA_MIN_SUPPORTED_VERSION45) {

4568

classfile_ucve_error("%s (class file version %u.%u) was compiled with an invalid major version",

4569

class_name, major, minor, THREAD__the_thread__);

4570

return;

4571

}

4572

4573

if (major > max_version) {

4574

Exceptions::fthrow(

4575

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4575,

4576

vmSymbols::java_lang_UnsupportedClassVersionError(),

4577

"%s has been compiled by a more recent version of the Java Runtime (class file version %u.%u), "

4578

"this version of the Java Runtime only recognizes class file versions up to %u.0",

4579

class_name->as_C_string(), major, minor, JVM_CLASSFILE_MAJOR_VERSION63);

4580

return;

4581

}

4582

4583

if (major < JAVA_12_VERSION56 || minor == 0) {

4584

return;

4585

}

4586

4587

if (minor == JAVA_PREVIEW_MINOR_VERSION65535) {

4588

if (major != max_version) {

4589

Exceptions::fthrow(

4590

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4590,

4591

vmSymbols::java_lang_UnsupportedClassVersionError(),

4592

"%s (class file version %u.%u) was compiled with preview features that are unsupported. "

4593

"This version of the Java Runtime only recognizes preview features for class file version %u.%u",

4594

class_name->as_C_string(), major, minor, JVM_CLASSFILE_MAJOR_VERSION63, JAVA_PREVIEW_MINOR_VERSION65535);

4595

return;

4596

}

4597

4598

if (!Arguments::enable_preview()) {

4599

classfile_ucve_error("Preview features are not enabled for %s (class file version %u.%u). Try running with '--enable-preview'",

4600

class_name, major, minor, THREAD__the_thread__);

4601

return;

4602

}

4603

4604

} else { // minor != JAVA_PREVIEW_MINOR_VERSION

4605

classfile_ucve_error("%s (class file version %u.%u) was compiled with an invalid non-zero minor version",

4606

class_name, major, minor, THREAD__the_thread__);

4607

}

4608

}

4609

4610

void ClassFileParser::verify_legal_field_modifiers(jint flags,

4611

bool is_interface,

4612

TRAPSJavaThread* __the_thread__) const {

4613

if (!_need_verify) { return; }

4614

4615

const bool is_public = (flags & JVM_ACC_PUBLIC) != 0;

4616

const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0;

4617

const bool is_private = (flags & JVM_ACC_PRIVATE) != 0;

4618

const bool is_static = (flags & JVM_ACC_STATIC) != 0;

4619

const bool is_final = (flags & JVM_ACC_FINAL) != 0;

4620

const bool is_volatile = (flags & JVM_ACC_VOLATILE) != 0;

4621

const bool is_transient = (flags & JVM_ACC_TRANSIENT) != 0;

4622

const bool is_enum = (flags & JVM_ACC_ENUM) != 0;

4623

const bool major_gte_1_5 = _major_version >= JAVA_1_5_VERSION49;

4624

4625

bool is_illegal = false;

4626

4627

if (is_interface) {

4628

if (!is_public || !is_static || !is_final || is_private ||

4629

is_protected || is_volatile || is_transient ||

4630

(major_gte_1_5 && is_enum)) {

4631

is_illegal = true;

4632

}

4633

} else { // not interface

4634

if (has_illegal_visibility(flags) || (is_final && is_volatile)) {

4635

is_illegal = true;

4636

}

4637

}

4638

4639

if (is_illegal) {

4640

ResourceMark rm(THREAD__the_thread__);

4641

Exceptions::fthrow(

4642

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4642,

4643

vmSymbols::java_lang_ClassFormatError(),

4644

"Illegal field modifiers in class %s: 0x%X",

4645

_class_name->as_C_string(), flags);

4646

return;

4647

}

4648

}

4649

4650

void ClassFileParser::verify_legal_method_modifiers(jint flags,

4651

bool is_interface,

4652

const Symbol* name,

4653

TRAPSJavaThread* __the_thread__) const {

4654

if (!_need_verify) { return; }

4655

4656

const bool is_public = (flags & JVM_ACC_PUBLIC) != 0;

4657

const bool is_private = (flags & JVM_ACC_PRIVATE) != 0;

4658

const bool is_static = (flags & JVM_ACC_STATIC) != 0;

4659

const bool is_final = (flags & JVM_ACC_FINAL) != 0;

4660

const bool is_native = (flags & JVM_ACC_NATIVE) != 0;

4661

const bool is_abstract = (flags & JVM_ACC_ABSTRACT) != 0;

4662

const bool is_bridge = (flags & JVM_ACC_BRIDGE) != 0;

4663

const bool is_strict = (flags & JVM_ACC_STRICT) != 0;

4664

const bool is_synchronized = (flags & JVM_ACC_SYNCHRONIZED) != 0;

4665

const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0;

4666

const bool major_gte_1_5 = _major_version >= JAVA_1_5_VERSION49;

4667

const bool major_gte_8 = _major_version >= JAVA_8_VERSION52;

4668

const bool major_gte_17 = _major_version >= JAVA_17_VERSION61;

4669

const bool is_initializer = (name == vmSymbols::object_initializer_name());

4670

4671

bool is_illegal = false;

4672

4673

if (is_interface) {

4674

if (major_gte_8) {

4675

// Class file version is JAVA_8_VERSION or later Methods of

4676

// interfaces may set any of the flags except ACC_PROTECTED,

4677

// ACC_FINAL, ACC_NATIVE, and ACC_SYNCHRONIZED; they must

4678

// have exactly one of the ACC_PUBLIC or ACC_PRIVATE flags set.

4679

if ((is_public == is_private) || /* Only one of private and public should be true - XNOR */

4680

(is_native || is_protected || is_final || is_synchronized) ||

4681

// If a specific method of a class or interface has its

4682

// ACC_ABSTRACT flag set, it must not have any of its

4683

// ACC_FINAL, ACC_NATIVE, ACC_PRIVATE, ACC_STATIC,

4684

// ACC_STRICT, or ACC_SYNCHRONIZED flags set. No need to

4685

// check for ACC_FINAL, ACC_NATIVE or ACC_SYNCHRONIZED as

4686

// those flags are illegal irrespective of ACC_ABSTRACT being set or not.

4687

(is_abstract && (is_private || is_static || (!major_gte_17 && is_strict)))) {

4688

is_illegal = true;

4689

}

4690

} else if (major_gte_1_5) {

4691

// Class file version in the interval [JAVA_1_5_VERSION, JAVA_8_VERSION)

4692

if (!is_public || is_private || is_protected || is_static || is_final ||

4693

is_synchronized || is_native || !is_abstract || is_strict) {

4694

is_illegal = true;

4695

}

4696

} else {

4697

// Class file version is pre-JAVA_1_5_VERSION

4698

if (!is_public || is_static || is_final || is_native || !is_abstract) {

4699

is_illegal = true;

4700

}

4701

}

4702

} else { // not interface

4703

if (has_illegal_visibility(flags)) {

4704

is_illegal = true;

4705

} else {

4706

if (is_initializer) {

4707

if (is_static || is_final || is_synchronized || is_native ||

4708

is_abstract || (major_gte_1_5 && is_bridge)) {

4709

is_illegal = true;

4710

}

4711

} else { // not initializer

4712

if (is_abstract) {

4713

if ((is_final || is_native || is_private || is_static ||

4714

(major_gte_1_5 && (is_synchronized || (!major_gte_17 && is_strict))))) {

4715

is_illegal = true;

4716

}

4717

}

4718

}

4719

}

4720

}

4721

4722

if (is_illegal) {

4723

ResourceMark rm(THREAD__the_thread__);

4724

Exceptions::fthrow(

4725

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4725,

4726

vmSymbols::java_lang_ClassFormatError(),

4727

"Method %s in class %s has illegal modifiers: 0x%X",

4728

name->as_C_string(), _class_name->as_C_string(), flags);

4729

return;

4730

}

4731

}

4732

4733

void ClassFileParser::verify_legal_utf8(const unsigned char* buffer,

4734

int length,

4735

TRAPSJavaThread* __the_thread__) const {

4736

assert(_need_verify, "only called when _need_verify is true")do { if (!(_need_verify)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4736, "assert(" "_need_verify" ") failed", "only called when _need_verify is true"
); ::breakpoint(); } } while (0);

4737

if (!UTF8::is_legal_utf8(buffer, length, _major_version <= 47)) {

4738

classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", THREAD__the_thread__);

4739

}

4740

}

4741

4742

// Unqualified names may not contain the characters '.', ';', '[', or '/'.

4743

// In class names, '/' separates unqualified names. This is verified in this function also.

4744

// Method names also may not contain the characters '<' or '>', unless <init>

4745

// or <clinit>. Note that method names may not be <init> or <clinit> in this

4746

// method. Because these names have been checked as special cases before

4747

// calling this method in verify_legal_method_name.

4748

//

4749

// This method is also called from the modular system APIs in modules.cpp

4750

// to verify the validity of module and package names.

4751

bool ClassFileParser::verify_unqualified_name(const char* name,

4752

unsigned int length,

4753

int type) {

4754

if (length == 0) return false; // Must have at least one char.

4755

for (const char* p = name; p != name + length; p++) {

4756

switch(*p) {

4757

case JVM_SIGNATURE_DOT:

4758

case JVM_SIGNATURE_ENDCLASS:

4759

case JVM_SIGNATURE_ARRAY:

4760

// do not permit '.', ';', or '['

4761

return false;

4762

case JVM_SIGNATURE_SLASH:

4763

// check for '//' or leading or trailing '/' which are not legal

4764

// unqualified name must not be empty

4765

if (type == ClassFileParser::LegalClass) {

4766

if (p == name || p+1 >= name+length ||

4767

*(p+1) == JVM_SIGNATURE_SLASH) {

4768

return false;

4769

}

4770

} else {

4771

return false; // do not permit '/' unless it's class name

4772

}

4773

break;

4774

case JVM_SIGNATURE_SPECIAL:

4775

case JVM_SIGNATURE_ENDSPECIAL:

4776

// do not permit '<' or '>' in method names

4777

if (type == ClassFileParser::LegalMethod) {

4778

return false;

4779

}

4780

}

4781

}

4782

return true;

4783

}

4784

4785

// Take pointer to a UTF8 byte string (not NUL-terminated).

4786

// Skip over the longest part of the string that could

4787

// be taken as a fieldname. Allow non-trailing '/'s if slash_ok is true.

4788

// Return a pointer to just past the fieldname.

4789

// Return NULL if no fieldname at all was found, or in the case of slash_ok

4790

// being true, we saw consecutive slashes (meaning we were looking for a

4791

// qualified path but found something that was badly-formed).

4792

static const char* skip_over_field_name(const char* const name,

4793

bool slash_ok,

4794

unsigned int length) {

4795

const char* p;

4796

jboolean last_is_slash = false;

4797

jboolean not_first_ch = false;

4798

4799

for (p = name; p != name + length; not_first_ch = true) {

4800

const char* old_p = p;

4801

jchar ch = *p;

4802

if (ch < 128) {

4803

p++;

4804

// quick check for ascii

4805

if ((ch >= 'a' && ch <= 'z') ||

4806

(ch >= 'A' && ch <= 'Z') ||

4807

(ch == '_' || ch == '$') ||

4808

(not_first_ch && ch >= '0' && ch <= '9')) {

4809

last_is_slash = false;

4810

continue;

4811

}

4812

if (slash_ok && ch == JVM_SIGNATURE_SLASH) {

4813

if (last_is_slash) {

4814

return NULL__null; // Don't permit consecutive slashes

4815

}

4816

last_is_slash = true;

4817

continue;

4818

}

4819

}

4820

else {

4821

jint unicode_ch;

4822

char* tmp_p = UTF8::next_character(p, &unicode_ch);

4823

p = tmp_p;

4824

last_is_slash = false;

4825

// Check if ch is Java identifier start or is Java identifier part

4826

// 4672820: call java.lang.Character methods directly without generating separate tables.

4827

EXCEPTION_MARKExceptionMark __em; JavaThread* __the_thread__ = __em.thread(
);;

4828

// return value

4829

JavaValue result(T_BOOLEAN);

4830

// Set up the arguments to isJavaIdentifierStart or isJavaIdentifierPart

4831

JavaCallArguments args;

4832

args.push_int(unicode_ch);

4833

4834

if (not_first_ch) {

4835

// public static boolean isJavaIdentifierPart(char ch);

4836

JavaCalls::call_static(&result,

4837

vmClasses::Character_klass(),

4838

vmSymbols::isJavaIdentifierPart_name(),

4839

vmSymbols::int_bool_signature(),

4840

&args,

4841

THREAD__the_thread__);

4842

} else {

4843

// public static boolean isJavaIdentifierStart(char ch);

4844

JavaCalls::call_static(&result,

4845

vmClasses::Character_klass(),

4846

vmSymbols::isJavaIdentifierStart_name(),

4847

vmSymbols::int_bool_signature(),

4848

&args,

4849

THREAD__the_thread__);

4850

}

4851

if (HAS_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->has_pending_exception())) {

4852

CLEAR_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->clear_pending_exception(
));

4853

return NULL__null;

4854

}

4855

if(result.get_jboolean()) {

4856

continue;

4857

}

4858

}

4859

return (not_first_ch) ? old_p : NULL__null;

4860

}

4861

return (not_first_ch && !last_is_slash) ? p : NULL__null;

4862

}

4863

4864

// Take pointer to a UTF8 byte string (not NUL-terminated).

4865

// Skip over the longest part of the string that could

4866

// be taken as a field signature. Allow "void" if void_ok.

4867

// Return a pointer to just past the signature.

4868

// Return NULL if no legal signature is found.

4869

const char* ClassFileParser::skip_over_field_signature(const char* signature,

4870

bool void_ok,

4871

unsigned int length,

4872

TRAPSJavaThread* __the_thread__) const {

4873

unsigned int array_dim = 0;

4874

while (length > 0) {

4875

switch (signature[0]) {

4876

case JVM_SIGNATURE_VOID: if (!void_ok) { return NULL__null; }

4877

case JVM_SIGNATURE_BOOLEAN:

4878

case JVM_SIGNATURE_BYTE:

4879

case JVM_SIGNATURE_CHAR:

4880

case JVM_SIGNATURE_SHORT:

4881

case JVM_SIGNATURE_INT:

4882

case JVM_SIGNATURE_FLOAT:

4883

case JVM_SIGNATURE_LONG:

4884

case JVM_SIGNATURE_DOUBLE:

4885

return signature + 1;

4886

case JVM_SIGNATURE_CLASS: {

4887

if (_major_version < JAVA_1_5_VERSION49) {

4888

// Skip over the class name if one is there

4889

const char* const p = skip_over_field_name(signature + 1, true, --length);

4890

4891

// The next character better be a semicolon

4892

if (p && (p - signature) > 1 && p[0] == JVM_SIGNATURE_ENDCLASS) {

4893

return p + 1;

4894

}

4895

}

4896

else {

4897

// Skip leading 'L' and ignore first appearance of ';'

4898

signature++;

4899

const char* c = (const char*) memchr(signature, JVM_SIGNATURE_ENDCLASS, length - 1);

4900

// Format check signature

4901

if (c != NULL__null) {

4902

int newlen = c - (char*) signature;

4903

bool legal = verify_unqualified_name(signature, newlen, LegalClass);

4904

if (!legal) {

4905

classfile_parse_error("Class name is empty or contains illegal character "

4906

"in descriptor in class file %s",

4907

THREAD__the_thread__);

4908

return NULL__null;

4909

}

4910

return signature + newlen + 1;

4911

}

4912

}

4913

return NULL__null;

4914

}

4915

case JVM_SIGNATURE_ARRAY:

4916

array_dim++;

4917

if (array_dim > 255) {

4918

// 4277370: array descriptor is valid only if it represents 255 or fewer dimensions.

4919

classfile_parse_error("Array type descriptor has more than 255 dimensions in class file %s", THREAD__the_thread__);

4920

return NULL__null;

4921

}

4922

// The rest of what's there better be a legal signature

4923

signature++;

4924

length--;

4925

void_ok = false;

4926

break;

4927

default:

4928

return NULL__null;

4929

}

4930

}

4931

return NULL__null;

4932

}

4933

4934

// Checks if name is a legal class name.

4935

void ClassFileParser::verify_legal_class_name(const Symbol* name, TRAPSJavaThread* __the_thread__) const {

4936

if (!_need_verify || _relax_verify) { return; }

4937

4938

assert(name->refcount() > 0, "symbol must be kept alive")do { if (!(name->refcount() > 0)) { (*g_assert_poison) =
'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4938, "assert(" "name->refcount() > 0" ") failed", "symbol must be kept alive"
); ::breakpoint(); } } while (0);

4939

char* bytes = (char*)name->bytes();

4940

unsigned int length = name->utf8_length();

4941

bool legal = false;

4942

4943

if (length > 0) {

4944

const char* p;

4945

if (bytes[0] == JVM_SIGNATURE_ARRAY) {

4946

p = skip_over_field_signature(bytes, false, length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

4947

legal = (p != NULL__null) && ((p - bytes) == (int)length);

4948

} else if (_major_version < JAVA_1_5_VERSION49) {

4949

if (bytes[0] != JVM_SIGNATURE_SPECIAL) {

4950

p = skip_over_field_name(bytes, true, length);

4951

legal = (p != NULL__null) && ((p - bytes) == (int)length);

4952

}

4953

} else {

4954

// 4900761: relax the constraints based on JSR202 spec

4955

// Class names may be drawn from the entire Unicode character set.

4956

// Identifiers between '/' must be unqualified names.

4957

// The utf8 string has been verified when parsing cpool entries.

4958

legal = verify_unqualified_name(bytes, length, LegalClass);

4959

}

4960

}

4961

if (!legal) {

4962

ResourceMark rm(THREAD__the_thread__);

4963

assert(_class_name != NULL, "invariant")do { if (!(_class_name != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4963, "assert(" "_class_name != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

4964

Exceptions::fthrow(

4965

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4965,

4966

vmSymbols::java_lang_ClassFormatError(),

4967

"Illegal class name \"%.*s\" in class file %s", length, bytes,

4968

_class_name->as_C_string()

4969

);

4970

return;

4971

}

4972

}

4973

4974

// Checks if name is a legal field name.

4975

void ClassFileParser::verify_legal_field_name(const Symbol* name, TRAPSJavaThread* __the_thread__) const {

4976

if (!_need_verify || _relax_verify) { return; }

4977

4978

char* bytes = (char*)name->bytes();

4979

unsigned int length = name->utf8_length();

4980

bool legal = false;

4981

4982

if (length > 0) {

4983

if (_major_version < JAVA_1_5_VERSION49) {

4984

if (bytes[0] != JVM_SIGNATURE_SPECIAL) {

4985

const char* p = skip_over_field_name(bytes, false, length);

4986

legal = (p != NULL__null) && ((p - bytes) == (int)length);

4987

}

4988

} else {

4989

// 4881221: relax the constraints based on JSR202 spec

4990

legal = verify_unqualified_name(bytes, length, LegalField);

4991

}

4992

}

4993

4994

if (!legal) {

4995

ResourceMark rm(THREAD__the_thread__);

4996

assert(_class_name != NULL, "invariant")do { if (!(_class_name != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4996, "assert(" "_class_name != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

4997

Exceptions::fthrow(

4998

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 4998,

4999

vmSymbols::java_lang_ClassFormatError(),

5000

"Illegal field name \"%.*s\" in class %s", length, bytes,

5001

_class_name->as_C_string()

5002

);

5003

return;

5004

}

5005

}

5006

5007

// Checks if name is a legal method name.

5008

void ClassFileParser::verify_legal_method_name(const Symbol* name, TRAPSJavaThread* __the_thread__) const {

5009

if (!_need_verify || _relax_verify) { return; }

5010

5011

assert(name != NULL, "method name is null")do { if (!(name != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5011, "assert(" "name != __null" ") failed", "method name is null"
); ::breakpoint(); } } while (0);

5012

char* bytes = (char*)name->bytes();

5013

unsigned int length = name->utf8_length();

5014

bool legal = false;

5015

5016

if (length > 0) {

5017

if (bytes[0] == JVM_SIGNATURE_SPECIAL) {

5018

if (name == vmSymbols::object_initializer_name() || name == vmSymbols::class_initializer_name()) {

5019

legal = true;

5020

}

5021

} else if (_major_version < JAVA_1_5_VERSION49) {

5022

const char* p;

5023

p = skip_over_field_name(bytes, false, length);

5024

legal = (p != NULL__null) && ((p - bytes) == (int)length);

5025

} else {

5026

// 4881221: relax the constraints based on JSR202 spec

5027

legal = verify_unqualified_name(bytes, length, LegalMethod);

5028

}

5029

}

5030

5031

if (!legal) {

5032

ResourceMark rm(THREAD__the_thread__);

5033

assert(_class_name != NULL, "invariant")do { if (!(_class_name != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5033, "assert(" "_class_name != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5034

Exceptions::fthrow(

5035

THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5035,

5036

vmSymbols::java_lang_ClassFormatError(),

5037

"Illegal method name \"%.*s\" in class %s", length, bytes,

5038

_class_name->as_C_string()

5039

);

5040

return;

5041

}

5042

}

5043

5044

5045

// Checks if signature is a legal field signature.

5046

void ClassFileParser::verify_legal_field_signature(const Symbol* name,

5047

const Symbol* signature,

5048

TRAPSJavaThread* __the_thread__) const {

5049

if (!_need_verify) { return; }

5050

5051

const char* const bytes = (const char* const)signature->bytes();

5052

const unsigned int length = signature->utf8_length();

5053

const char* const p = skip_over_field_signature(bytes, false, length, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5054

5055

if (p == NULL__null || (p - bytes) != (int)length) {

5056

throwIllegalSignature("Field", name, signature, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5057

}

5058

}

5059

5060

// Check that the signature is compatible with the method name. For example,

5061

// check that <init> has a void signature.

5062

void ClassFileParser::verify_legal_name_with_signature(const Symbol* name,

5063

const Symbol* signature,

5064

TRAPSJavaThread* __the_thread__) const {

5065

if (!_need_verify) {

5066

return;

5067

}

5068

5069

// Class initializers cannot have args for class format version >= 51.

5070

if (name == vmSymbols::class_initializer_name() &&

5071

signature != vmSymbols::void_method_signature() &&

5072

_major_version >= JAVA_7_VERSION51) {

5073

throwIllegalSignature("Method", name, signature, THREAD__the_thread__);

5074

return;

5075

}

5076

5077

int sig_length = signature->utf8_length();

5078

if (name->utf8_length() > 0 &&

5079

name->char_at(0) == JVM_SIGNATURE_SPECIAL &&

5080

sig_length > 0 &&

5081

signature->char_at(sig_length - 1) != JVM_SIGNATURE_VOID) {

5082

throwIllegalSignature("Method", name, signature, THREAD__the_thread__);

5083

}

5084

}

5085

5086

// Checks if signature is a legal method signature.

5087

// Returns number of parameters

5088

int ClassFileParser::verify_legal_method_signature(const Symbol* name,

5089

const Symbol* signature,

5090

TRAPSJavaThread* __the_thread__) const {

5091

if (!_need_verify) {

5092

// make sure caller's args_size will be less than 0 even for non-static

5093

// method so it will be recomputed in compute_size_of_parameters().

5094

return -2;

5095

}

5096

5097

unsigned int args_size = 0;

5098

const char* p = (const char*)signature->bytes();

5099

unsigned int length = signature->utf8_length();

5100

const char* nextp;

5101

5102

// The first character must be a '('

5103

if ((length > 0) && (*p++ == JVM_SIGNATURE_FUNC)) {

5104

length--;

5105

// Skip over legal field signatures

5106

nextp = skip_over_field_signature(p, false, length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

5107

while ((length > 0) && (nextp != NULL__null)) {

5108

args_size++;

5109

if (p[0] == 'J' || p[0] == 'D') {

5110

args_size++;

5111

}

5112

length -= nextp - p;

5113

p = nextp;

5114

nextp = skip_over_field_signature(p, false, length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

5115

}

5116

// The first non-signature thing better be a ')'

5117

if ((length > 0) && (*p++ == JVM_SIGNATURE_ENDFUNC)) {

5118

length--;

5119

// Now we better just have a return value

5120

nextp = skip_over_field_signature(p, true, length, CHECK_0__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return 0; (void)(0);

5121

if (nextp && ((int)length == (nextp - p))) {

5122

return args_size;

5123

}

5124

}

5125

}

5126

// Report error

5127

throwIllegalSignature("Method", name, signature, THREAD__the_thread__);

5128

return 0;

5129

}

5130

5131

int ClassFileParser::static_field_size() const {

5132

assert(_field_info != NULL, "invariant")do { if (!(_field_info != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5132, "assert(" "_field_info != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5133

return _field_info->_static_field_size;

5134

}

5135

5136

int ClassFileParser::total_oop_map_count() const {

5137

assert(_field_info != NULL, "invariant")do { if (!(_field_info != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5137, "assert(" "_field_info != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5138

return _field_info->oop_map_blocks->_nonstatic_oop_map_count;

5139

}

5140

5141

jint ClassFileParser::layout_size() const {

5142

assert(_field_info != NULL, "invariant")do { if (!(_field_info != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5142, "assert(" "_field_info != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5143

return _field_info->_instance_size;

5144

}

5145

5146

static void check_methods_for_intrinsics(const InstanceKlass* ik,

5147

const Array<Method*>* methods) {

5148

assert(ik != NULL, "invariant")do { if (!(ik != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5148, "assert(" "ik != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

5149

assert(methods != NULL, "invariant")do { if (!(methods != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5149, "assert(" "methods != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5150

5151

// Set up Method*::intrinsic_id as soon as we know the names of methods.

5152

// (We used to do this lazily, but now we query it in Rewriter,

5153

// which is eagerly done for every method, so we might as well do it now,

5154

// when everything is fresh in memory.)

5155

const vmSymbolID klass_id = Method::klass_id_for_intrinsics(ik);

5156

5157

if (klass_id != vmSymbolID::NO_SID) {

5158

for (int j = 0; j < methods->length(); ++j) {

5159

Method* method = methods->at(j);

5160

method->init_intrinsic_id(klass_id);

5161

5162

if (CheckIntrinsics) {

5163

// Check if an intrinsic is defined for method 'method',

5164

// but the method is not annotated with @IntrinsicCandidate.

5165

if (method->intrinsic_id() != vmIntrinsics::_none &&

5166

!method->intrinsic_candidate()) {

5167

tty->print("Compiler intrinsic is defined for method [%s], "

5168

"but the method is not annotated with @IntrinsicCandidate.%s",

5169

method->name_and_sig_as_C_string(),

5170

NOT_DEBUG(" Method will not be inlined.") DEBUG_ONLY(" Exiting.")" Exiting."

5171

);

5172

tty->cr();

5173

DEBUG_ONLY(vm_exit(1))vm_exit(1);

5174

}

5175

// Check is the method 'method' is annotated with @IntrinsicCandidate,

5176

// but there is no intrinsic available for it.

5177

if (method->intrinsic_candidate() &&

5178

method->intrinsic_id() == vmIntrinsics::_none) {

5179

tty->print("Method [%s] is annotated with @IntrinsicCandidate, "

5180

"but no compiler intrinsic is defined for the method.%s",

5181

method->name_and_sig_as_C_string(),

5182

NOT_DEBUG("") DEBUG_ONLY(" Exiting.")" Exiting."

5183

);

5184

tty->cr();

5185

DEBUG_ONLY(vm_exit(1))vm_exit(1);

5186

}

5187

}

5188

} // end for

5189

5190

#ifdef ASSERT1

5191

if (CheckIntrinsics) {

5192

// Check for orphan methods in the current class. A method m

5193

// of a class C is orphan if an intrinsic is defined for method m,

5194

// but class C does not declare m.

5195

// The check is potentially expensive, therefore it is available

5196

// only in debug builds.

5197

5198

for (auto id : EnumRange<vmIntrinsicID>{}) {

5199

if (vmIntrinsics::_compiledLambdaForm == id) {

5200

// The _compiledLamdbdaForm intrinsic is a special marker for bytecode

5201

// generated for the JVM from a LambdaForm and therefore no method

5202

// is defined for it.

5203

continue;

5204

}

5205

if (vmIntrinsics::_blackhole == id) {

5206

// The _blackhole intrinsic is a special marker. No explicit method

5207

// is defined for it.

5208

continue;

5209

}

5210

5211

if (vmIntrinsics::class_for(id) == klass_id) {

5212

// Check if the current class contains a method with the same

5213

// name, flags, signature.

5214

bool match = false;

5215

for (int j = 0; j < methods->length(); ++j) {

5216

const Method* method = methods->at(j);

5217

if (method->intrinsic_id() == id) {

5218

match = true;

5219

break;

5220

}

5221

}

5222

5223

if (!match) {

5224

char buf[1000];

5225

tty->print("Compiler intrinsic is defined for method [%s], "

5226

"but the method is not available in class [%s].%s",

5227

vmIntrinsics::short_name_as_C_string(id, buf, sizeof(buf)),

5228

ik->name()->as_C_string(),

5229

NOT_DEBUG("") DEBUG_ONLY(" Exiting.")" Exiting."

5230

);

5231

tty->cr();

5232

DEBUG_ONLY(vm_exit(1))vm_exit(1);

5233

}

5234

}

5235

} // end for

5236

} // CheckIntrinsics

5237

#endif // ASSERT

5238

}

5239

}

5240

5241

InstanceKlass* ClassFileParser::create_instance_klass(bool changed_by_loadhook,

5242

const ClassInstanceInfo& cl_inst_info,

5243

TRAPSJavaThread* __the_thread__) {

5244

if (_klass != NULL__null) {

5245

return _klass;

5246

}

5247

5248

InstanceKlass* const ik =

5249

InstanceKlass::allocate_instance_klass(*this, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

5250

5251

if (is_hidden()) {

5252

mangle_hidden_class_name(ik);

5253

}

5254

5255

fill_instance_klass(ik, changed_by_loadhook, cl_inst_info, CHECK_NULL__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return __null; (void)(0);

5256

5257

assert(_klass == ik, "invariant")do { if (!(_klass == ik)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5257, "assert(" "_klass == ik" ") failed", "invariant"); ::
breakpoint(); } } while (0);

5258

5259

return ik;

5260

}

5261

5262

void ClassFileParser::fill_instance_klass(InstanceKlass* ik,

5263

bool changed_by_loadhook,

5264

const ClassInstanceInfo& cl_inst_info,

5265

TRAPSJavaThread* __the_thread__) {

5266

assert(ik != NULL, "invariant")do { if (!(ik != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5266, "assert(" "ik != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

5267

5268

// Set name and CLD before adding to CLD

5269

ik->set_class_loader_data(_loader_data);

5270

ik->set_name(_class_name);

5271

5272

// Add all classes to our internal class loader list here,

5273

// including classes in the bootstrap (NULL) class loader.

5274

const bool publicize = !is_internal();

5275

5276

_loader_data->add_class(ik, publicize);

5277

5278

set_klass_to_deallocate(ik);

5279

5280

assert(_field_info != NULL, "invariant")do { if (!(_field_info != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5280, "assert(" "_field_info != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5281

assert(ik->static_field_size() == _field_info->_static_field_size, "sanity")do { if (!(ik->static_field_size() == _field_info->_static_field_size
)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5281, "assert(" "ik->static_field_size() == _field_info->_static_field_size"
") failed", "sanity"); ::breakpoint(); } } while (0);

5282

assert(ik->nonstatic_oop_map_count() == _field_info->oop_map_blocks->_nonstatic_oop_map_count,do { if (!(ik->nonstatic_oop_map_count() == _field_info->
oop_map_blocks->_nonstatic_oop_map_count)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5283, "assert(" "ik->nonstatic_oop_map_count() == _field_info->oop_map_blocks->_nonstatic_oop_map_count"
") failed", "sanity"); ::breakpoint(); } } while (0)

5283

"sanity")do { if (!(ik->nonstatic_oop_map_count() == _field_info->
oop_map_blocks->_nonstatic_oop_map_count)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5283, "assert(" "ik->nonstatic_oop_map_count() == _field_info->oop_map_blocks->_nonstatic_oop_map_count"
") failed", "sanity"); ::breakpoint(); } } while (0);

5284

5285

assert(ik->is_instance_klass(), "sanity")do { if (!(ik->is_instance_klass())) { (*g_assert_poison) =
'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5285, "assert(" "ik->is_instance_klass()" ") failed", "sanity"
); ::breakpoint(); } } while (0);

5286

assert(ik->size_helper() == _field_info->_instance_size, "sanity")do { if (!(ik->size_helper() == _field_info->_instance_size
)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5286, "assert(" "ik->size_helper() == _field_info->_instance_size"
") failed", "sanity"); ::breakpoint(); } } while (0);

5287

5288

// Fill in information already parsed

5289

ik->set_should_verify_class(_need_verify);

5290

5291

// Not yet: supers are done below to support the new subtype-checking fields

5292

ik->set_nonstatic_field_size(_field_info->_nonstatic_field_size);

5293

ik->set_has_nonstatic_fields(_field_info->_has_nonstatic_fields);

5294

assert(_fac != NULL, "invariant")do { if (!(_fac != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5294, "assert(" "_fac != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

5295

ik->set_static_oop_field_count(_fac->count[STATIC_OOP]);

5296

5297

// this transfers ownership of a lot of arrays from

5298

// the parser onto the InstanceKlass*

5299

apply_parsed_class_metadata(ik, _java_fields_count);

5300

5301

// can only set dynamic nest-host after static nest information is set

5302

if (cl_inst_info.dynamic_nest_host() != NULL__null) {

5303

ik->set_nest_host(cl_inst_info.dynamic_nest_host());

5304

}

5305

5306

// note that is not safe to use the fields in the parser from this point on

5307

assert(NULL == _cp, "invariant")do { if (!(__null == _cp)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5307, "assert(" "__null == _cp" ") failed", "invariant"); ::
breakpoint(); } } while (0);

5308

assert(NULL == _fields, "invariant")do { if (!(__null == _fields)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5308, "assert(" "__null == _fields" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5309

assert(NULL == _methods, "invariant")do { if (!(__null == _methods)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5309, "assert(" "__null == _methods" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5310

assert(NULL == _inner_classes, "invariant")do { if (!(__null == _inner_classes)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5310, "assert(" "__null == _inner_classes" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5311

assert(NULL == _nest_members, "invariant")do { if (!(__null == _nest_members)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5311, "assert(" "__null == _nest_members" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5312

assert(NULL == _combined_annotations, "invariant")do { if (!(__null == _combined_annotations)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5312, "assert(" "__null == _combined_annotations" ") failed"
, "invariant"); ::breakpoint(); } } while (0);

5313

assert(NULL == _record_components, "invariant")do { if (!(__null == _record_components)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5313, "assert(" "__null == _record_components" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5314

assert(NULL == _permitted_subclasses, "invariant")do { if (!(__null == _permitted_subclasses)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5314, "assert(" "__null == _permitted_subclasses" ") failed"
, "invariant"); ::breakpoint(); } } while (0);

5315

5316

if (_has_final_method) {

5317

ik->set_has_final_method();

5318

}

5319

5320

ik->copy_method_ordering(_method_ordering, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5321

// The InstanceKlass::_methods_jmethod_ids cache

5322

// is managed on the assumption that the initial cache

5323

// size is equal to the number of methods in the class. If

5324

// that changes, then InstanceKlass::idnum_can_increment()

5325

// has to be changed accordingly.

5326

ik->set_initial_method_idnum(ik->methods()->length());

5327

5328

ik->set_this_class_index(_this_class_index);

5329

5330

if (_is_hidden) {

5331

// _this_class_index is a CONSTANT_Class entry that refers to this

5332

// hidden class itself. If this class needs to refer to its own methods

5333

// or fields, it would use a CONSTANT_MethodRef, etc, which would reference

5334

// _this_class_index. However, because this class is hidden (it's

5335

// not stored in SystemDictionary), _this_class_index cannot be resolved

5336

// with ConstantPool::klass_at_impl, which does a SystemDictionary lookup.

5337

// Therefore, we must eagerly resolve _this_class_index now.

5338

ik->constants()->klass_at_put(_this_class_index, ik);

5339

}

5340

5341

ik->set_minor_version(_minor_version);

5342

ik->set_major_version(_major_version);

5343

ik->set_has_nonstatic_concrete_methods(_has_nonstatic_concrete_methods);

5344

ik->set_declares_nonstatic_concrete_methods(_declares_nonstatic_concrete_methods);

5345

5346

if (_is_hidden) {

5347

ik->set_is_hidden();

5348

}

5349

5350

// Set PackageEntry for this_klass

5351

oop cl = ik->class_loader();

5352

Handle clh = Handle(THREAD__the_thread__, java_lang_ClassLoader::non_reflection_class_loader(cl));

5353

ClassLoaderData* cld = ClassLoaderData::class_loader_data_or_null(clh());

5354

ik->set_package(cld, NULL__null, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5355

5356

const Array<Method*>* const methods = ik->methods();

5357

assert(methods != NULL, "invariant")do { if (!(methods != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5357, "assert(" "methods != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5358

const int methods_len = methods->length();

5359

5360

check_methods_for_intrinsics(ik, methods);

5361

5362

// Fill in field values obtained by parse_classfile_attributes

5363

if (_parsed_annotations->has_any_annotations()) {

5364

_parsed_annotations->apply_to(ik);

5365

}

5366

5367

apply_parsed_class_attributes(ik);

5368

5369

// Miranda methods

5370

if ((_num_miranda_methods > 0) ||

5371

// if this class introduced new miranda methods or

5372

(_super_klass != NULL__null && _super_klass->has_miranda_methods())

5373

// super class exists and this class inherited miranda methods

5374

) {

5375

ik->set_has_miranda_methods(); // then set a flag

5376

}

5377

5378

// Fill in information needed to compute superclasses.

5379

ik->initialize_supers(const_cast<InstanceKlass*>(_super_klass), _transitive_interfaces, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5380

ik->set_transitive_interfaces(_transitive_interfaces);

5381

ik->set_local_interfaces(_local_interfaces);

5382

_transitive_interfaces = NULL__null;

5383

_local_interfaces = NULL__null;

5384

5385

// Initialize itable offset tables

5386

klassItable::setup_itable_offset_table(ik);

5387

5388

// Compute transitive closure of interfaces this class implements

5389

// Do final class setup

5390

OopMapBlocksBuilder* oop_map_blocks = _field_info->oop_map_blocks;

5391

if (oop_map_blocks->_nonstatic_oop_map_count > 0) {

5392

oop_map_blocks->copy(ik->start_of_nonstatic_oop_maps());

5393

}

5394

5395

if (_has_contended_fields || _parsed_annotations->is_contended() ||

5396

( _super_klass != NULL__null && _super_klass->has_contended_annotations())) {

5397

ik->set_has_contended_annotations(true);

5398

}

5399

5400

// Fill in has_finalizer, has_vanilla_constructor, and layout_helper

5401

set_precomputed_flags(ik);

5402

5403

// check if this class can access its super class

5404

check_super_class_access(ik, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5405

5406

// check if this class can access its superinterfaces

5407

check_super_interface_access(ik, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5408

5409

// check if this class overrides any final method

5410

check_final_method_override(ik, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5411

5412

// reject static interface methods prior to Java 8

5413

if (ik->is_interface() && _major_version < JAVA_8_VERSION52) {

5414

check_illegal_static_method(ik, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5415

}

5416

5417

// Obtain this_klass' module entry

5418

ModuleEntry* module_entry = ik->module();

5419

assert(module_entry != NULL, "module_entry should always be set")do { if (!(module_entry != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5419, "assert(" "module_entry != __null" ") failed", "module_entry should always be set"
); ::breakpoint(); } } while (0);

5420

5421

// Obtain java.lang.Module

5422

Handle module_handle(THREAD__the_thread__, module_entry->module());

5423

5424

// Allocate mirror and initialize static fields

5425

// The create_mirror() call will also call compute_modifiers()

5426

java_lang_Class::create_mirror(ik,

5427

Handle(THREAD__the_thread__, _loader_data->class_loader()),

5428

module_handle,

5429

_protection_domain,

5430

cl_inst_info.class_data(),

5431

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5432

5433

assert(_all_mirandas != NULL, "invariant")do { if (!(_all_mirandas != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5433, "assert(" "_all_mirandas != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5434

5435

// Generate any default methods - default methods are public interface methods

5436

// that have a default implementation. This is new with Java 8.

5437

if (_has_nonstatic_concrete_methods) {

5438

DefaultMethods::generate_default_methods(ik,

5439

_all_mirandas,

5440

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5441

}

5442

5443

// Add read edges to the unnamed modules of the bootstrap and app class loaders.

5444

if (changed_by_loadhook && !module_handle.is_null() && module_entry->is_named() &&

5445

!module_entry->has_default_read_edges()) {

5446

if (!module_entry->set_has_default_read_edges()) {

5447

// We won a potential race

5448

JvmtiExport::add_default_read_edges(module_handle, THREAD__the_thread__);

5449

}

5450

}

5451

5452

ClassLoadingService::notify_class_loaded(ik, false /* not shared class */);

5453

5454

if (!is_internal()) {

5455

ik->print_class_load_logging(_loader_data, module_entry, _stream);

5456

5457

if (ik->minor_version() == JAVA_PREVIEW_MINOR_VERSION65535 &&

5458

ik->major_version() == JVM_CLASSFILE_MAJOR_VERSION63 &&

5459

log_is_enabled(Info, class, preview)(LogImpl<(LogTag::_class), (LogTag::_preview), (LogTag::__NO_TAG
), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)
>::is_level(LogLevel::Info))) {

5460

ResourceMark rm;

5461

log_info(class, preview)(!(LogImpl<(LogTag::_class), (LogTag::_preview), (LogTag::
__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG
)>::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag
::_class), (LogTag::_preview), (LogTag::__NO_TAG), (LogTag::__NO_TAG
), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel
::Info>("Loading class %s that depends on preview features (class file version %d.65535)",

5462

ik->external_name(), JVM_CLASSFILE_MAJOR_VERSION63);

5463

}

5464

5465

if (log_is_enabled(Debug, class, resolve)(LogImpl<(LogTag::_class), (LogTag::_resolve), (LogTag::__NO_TAG
), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)
>::is_level(LogLevel::Debug))) {

5466

ResourceMark rm;

5467

// print out the superclass.

5468

const char * from = ik->external_name();

5469

if (ik->java_super() != NULL__null) {

5470

log_debug(class, resolve)(!(LogImpl<(LogTag::_class), (LogTag::_resolve), (LogTag::
__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG
)>::is_level(LogLevel::Debug))) ? (void)0 : LogImpl<(LogTag
::_class), (LogTag::_resolve), (LogTag::__NO_TAG), (LogTag::__NO_TAG
), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel
::Debug>("%s %s (super)",

5471

from,

5472

ik->java_super()->external_name());

5473

}

5474

// print out each of the interface classes referred to by this class.

5475

const Array<InstanceKlass*>* const local_interfaces = ik->local_interfaces();

5476

if (local_interfaces != NULL__null) {

5477

const int length = local_interfaces->length();

5478

for (int i = 0; i < length; i++) {

5479

const InstanceKlass* const k = local_interfaces->at(i);

5480

const char * to = k->external_name();

5481

log_debug(class, resolve)(!(LogImpl<(LogTag::_class), (LogTag::_resolve), (LogTag::
__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG
)>::is_level(LogLevel::Debug))) ? (void)0 : LogImpl<(LogTag
::_class), (LogTag::_resolve), (LogTag::__NO_TAG), (LogTag::__NO_TAG
), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel
::Debug>("%s %s (interface)", from, to);

5482

}

5483

}

5484

}

5485

}

5486

5487

JFR_ONLY(INIT_ID(ik);)JfrTraceId::assign(ik);

5488

5489

// If we reach here, all is well.

5490

// Now remove the InstanceKlass* from the _klass_to_deallocate field

5491

// in order for it to not be destroyed in the ClassFileParser destructor.

5492

set_klass_to_deallocate(NULL__null);

5493

5494

// it's official

5495

set_klass(ik);

5496

5497

debug_only(ik->verify();)ik->verify();

5498

}

5499

5500

void ClassFileParser::update_class_name(Symbol* new_class_name) {

5501

// Decrement the refcount in the old name, since we're clobbering it.

5502

_class_name->decrement_refcount();

5503

5504

_class_name = new_class_name;

5505

// Increment the refcount of the new name.

5506

// Now the ClassFileParser owns this name and will decrement in

5507

// the destructor.

5508

_class_name->increment_refcount();

5509

}

5510

5511

static bool relax_format_check_for(ClassLoaderData* loader_data) {

5512

bool trusted = loader_data->is_boot_class_loader_data() ||

5513

loader_data->is_platform_class_loader_data();

5514

bool need_verify =

5515

// verifyAll

5516

(BytecodeVerificationLocal && BytecodeVerificationRemote) ||

5517

// verifyRemote

5518

(!BytecodeVerificationLocal && BytecodeVerificationRemote && !trusted);

5519

return !need_verify;

5520

}

5521

5522

ClassFileParser::ClassFileParser(ClassFileStream* stream,

5523

Symbol* name,

5524

ClassLoaderData* loader_data,

5525

const ClassLoadInfo* cl_info,

5526

Publicity pub_level,

5527

TRAPSJavaThread* __the_thread__) :

5528

_stream(stream),

5529

_class_name(NULL__null),

5530

_loader_data(loader_data),

5531

_is_hidden(cl_info->is_hidden()),

5532

_can_access_vm_annotations(cl_info->can_access_vm_annotations()),

5533

_orig_cp_size(0),

5534

_super_klass(),

5535

_cp(NULL__null),

5536

_fields(NULL__null),

5537

_methods(NULL__null),

5538

_inner_classes(NULL__null),

5539

_nest_members(NULL__null),

5540

_nest_host(0),

5541

_permitted_subclasses(NULL__null),

5542

_record_components(NULL__null),

5543

_local_interfaces(NULL__null),

5544

_transitive_interfaces(NULL__null),

5545

_combined_annotations(NULL__null),

5546

_class_annotations(NULL__null),

5547

_class_type_annotations(NULL__null),

5548

_fields_annotations(NULL__null),

5549

_fields_type_annotations(NULL__null),

5550

_klass(NULL__null),

5551

_klass_to_deallocate(NULL__null),

5552

_parsed_annotations(NULL__null),

5553

_fac(NULL__null),

5554

_field_info(NULL__null),

5555

_method_ordering(NULL__null),

5556

_all_mirandas(NULL__null),

5557

_vtable_size(0),

5558

_itable_size(0),

5559

_num_miranda_methods(0),

5560

_rt(REF_NONE),

5561

_protection_domain(cl_info->protection_domain()),

5562

_access_flags(),

5563

_pub_level(pub_level),

5564

_bad_constant_seen(0),

5565

_synthetic_flag(false),

5566

_sde_length(false),

5567

_sde_buffer(NULL__null),

5568

_sourcefile_index(0),

5569

_generic_signature_index(0),

5570

_major_version(0),

5571

_minor_version(0),

5572

_this_class_index(0),

5573

_super_class_index(0),

5574

_itfs_len(0),

5575

_java_fields_count(0),

5576

_need_verify(false),

5577

_relax_verify(false),

5578

_has_nonstatic_concrete_methods(false),

5579

_declares_nonstatic_concrete_methods(false),

5580

_has_final_method(false),

5581

_has_contended_fields(false),

5582

_has_finalizer(false),

5583

_has_empty_finalizer(false),

5584

_has_vanilla_constructor(false),

5585

_max_bootstrap_specifier_index(-1) {

5586

5587

_class_name = name != NULL__null ? name : vmSymbols::unknown_class_name();

5588

_class_name->increment_refcount();

5589

5590

assert(_loader_data != NULL, "invariant")do { if (!(_loader_data != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5590, "assert(" "_loader_data != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5591

assert(stream != NULL, "invariant")do { if (!(stream != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5591, "assert(" "stream != __null" ") failed", "invariant")
; ::breakpoint(); } } while (0);

5592

assert(_stream != NULL, "invariant")do { if (!(_stream != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5592, "assert(" "_stream != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5593

assert(_stream->buffer() == _stream->current(), "invariant")do { if (!(_stream->buffer() == _stream->current())) { (
*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5593, "assert(" "_stream->buffer() == _stream->current()"
") failed", "invariant"); ::breakpoint(); } } while (0);

5594

assert(_class_name != NULL, "invariant")do { if (!(_class_name != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5594, "assert(" "_class_name != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5595

assert(0 == _access_flags.as_int(), "invariant")do { if (!(0 == _access_flags.as_int())) { (*g_assert_poison)
= 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5595, "assert(" "0 == _access_flags.as_int()" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5596

5597

// Figure out whether we can skip format checking (matching classic VM behavior)

5598

if (DumpSharedSpaces) {

5599

// verify == true means it's a 'remote' class (i.e., non-boot class)

5600

// Verification decision is based on BytecodeVerificationRemote flag

5601

// for those classes.

5602

_need_verify = (stream->need_verify()) ? BytecodeVerificationRemote :

5603

BytecodeVerificationLocal;

5604

}

5605

else {

5606

_need_verify = Verifier::should_verify_for(_loader_data->class_loader(),

5607

stream->need_verify());

5608

}

5609

5610

// synch back verification state to stream

5611

stream->set_verify(_need_verify);

5612

5613

// Check if verification needs to be relaxed for this class file

5614

// Do not restrict it to jdk1.0 or jdk1.1 to maintain backward compatibility (4982376)

5615

_relax_verify = relax_format_check_for(_loader_data);

5616

5617

parse_stream(stream, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5618

5619

post_process_parsed_stream(stream, _cp, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5620

}

5621

5622

void ClassFileParser::clear_class_metadata() {

5623

// metadata created before the instance klass is created. Must be

5624

// deallocated if classfile parsing returns an error.

5625

_cp = NULL__null;

5626

_fields = NULL__null;

5627

_methods = NULL__null;

5628

_inner_classes = NULL__null;

5629

_nest_members = NULL__null;

5630

_permitted_subclasses = NULL__null;

5631

_combined_annotations = NULL__null;

5632

_class_annotations = _class_type_annotations = NULL__null;

5633

_fields_annotations = _fields_type_annotations = NULL__null;

5634

_record_components = NULL__null;

5635

}

5636

5637

// Destructor to clean up

5638

ClassFileParser::~ClassFileParser() {

5639

_class_name->decrement_refcount();

5640

5641

if (_cp != NULL__null) {

5642

MetadataFactory::free_metadata(_loader_data, _cp);

5643

}

5644

if (_fields != NULL__null) {

5645

MetadataFactory::free_array<u2>(_loader_data, _fields);

5646

}

5647

5648

if (_methods != NULL__null) {

5649

// Free methods

5650

InstanceKlass::deallocate_methods(_loader_data, _methods);

5651

}

5652

5653

// beware of the Universe::empty_blah_array!!

5654

if (_inner_classes != NULL__null && _inner_classes != Universe::the_empty_short_array()) {

5655

MetadataFactory::free_array<u2>(_loader_data, _inner_classes);

5656

}

5657

5658

if (_nest_members != NULL__null && _nest_members != Universe::the_empty_short_array()) {

5659

MetadataFactory::free_array<u2>(_loader_data, _nest_members);

5660

}

5661

5662

if (_record_components != NULL__null) {

5663

InstanceKlass::deallocate_record_components(_loader_data, _record_components);

5664

}

5665

5666

if (_permitted_subclasses != NULL__null && _permitted_subclasses != Universe::the_empty_short_array()) {

5667

MetadataFactory::free_array<u2>(_loader_data, _permitted_subclasses);

5668

}

5669

5670

// Free interfaces

5671

InstanceKlass::deallocate_interfaces(_loader_data, _super_klass,

5672

_local_interfaces, _transitive_interfaces);

5673

5674

if (_combined_annotations != NULL__null) {

5675

// After all annotations arrays have been created, they are installed into the

5676

// Annotations object that will be assigned to the InstanceKlass being created.

5677

5678

// Deallocate the Annotations object and the installed annotations arrays.

5679

_combined_annotations->deallocate_contents(_loader_data);

5680

5681

// If the _combined_annotations pointer is non-NULL,

5682

// then the other annotations fields should have been cleared.

5683

assert(_class_annotations == NULL, "Should have been cleared")do { if (!(_class_annotations == __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5683, "assert(" "_class_annotations == __null" ") failed", "Should have been cleared"
); ::breakpoint(); } } while (0);

5684

assert(_class_type_annotations == NULL, "Should have been cleared")do { if (!(_class_type_annotations == __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5684, "assert(" "_class_type_annotations == __null" ") failed"
, "Should have been cleared"); ::breakpoint(); } } while (0);

5685

assert(_fields_annotations == NULL, "Should have been cleared")do { if (!(_fields_annotations == __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5685, "assert(" "_fields_annotations == __null" ") failed",
"Should have been cleared"); ::breakpoint(); } } while (0);

5686

assert(_fields_type_annotations == NULL, "Should have been cleared")do { if (!(_fields_type_annotations == __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5686, "assert(" "_fields_type_annotations == __null" ") failed"
, "Should have been cleared"); ::breakpoint(); } } while (0);

5687

} else {

5688

// If the annotations arrays were not installed into the Annotations object,

5689

// then they have to be deallocated explicitly.

5690

MetadataFactory::free_array<u1>(_loader_data, _class_annotations);

5691

MetadataFactory::free_array<u1>(_loader_data, _class_type_annotations);

5692

Annotations::free_contents(_loader_data, _fields_annotations);

5693

Annotations::free_contents(_loader_data, _fields_type_annotations);

5694

}

5695

5696

clear_class_metadata();

5697

_transitive_interfaces = NULL__null;

5698

_local_interfaces = NULL__null;

5699

5700

// deallocate the klass if already created. Don't directly deallocate, but add

5701

// to the deallocate list so that the klass is removed from the CLD::_klasses list

5702

// at a safepoint.

5703

if (_klass_to_deallocate != NULL__null) {

5704

_loader_data->add_to_deallocate_list(_klass_to_deallocate);

5705

}

5706

}

5707

5708

void ClassFileParser::parse_stream(const ClassFileStream* const stream,

5709

TRAPSJavaThread* __the_thread__) {

5710

5711

assert(stream != NULL, "invariant")do { if (!(stream != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5711, "assert(" "stream != __null" ") failed", "invariant")
; ::breakpoint(); } } while (0);

5712

assert(_class_name != NULL, "invariant")do { if (!(_class_name != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5712, "assert(" "_class_name != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5713

5714

// BEGIN STREAM PARSING

5715

stream->guarantee_more(8, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // magic, major, minor

5716

// Magic value

5717

const u4 magic = stream->get_u4_fast();

5718

guarantee_property(magic == JAVA_CLASSFILE_MAGIC0xCAFEBABE,

5719

"Incompatible magic value %u in class file %s",

5720

magic, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5721

5722

// Version numbers

5723

_minor_version = stream->get_u2_fast();

5724

_major_version = stream->get_u2_fast();

5725

5726

// Check version numbers - we check this even with verifier off

5727

verify_class_version(_major_version, _minor_version, _class_name, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5728

5729

stream->guarantee_more(3, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // length, first cp tag

5730

u2 cp_size = stream->get_u2_fast();

5731

5732

guarantee_property(

5733

cp_size >= 1, "Illegal constant pool size %u in class file %s",

5734

cp_size, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5735

5736

_orig_cp_size = cp_size;

5737

if (is_hidden()) { // Add a slot for hidden class name.

5738

cp_size++;

5739

}

5740

5741

_cp = ConstantPool::allocate(_loader_data,

5742

cp_size,

5743

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5744

5745

ConstantPool* const cp = _cp;

5746

5747

parse_constant_pool(stream, cp, _orig_cp_size, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5748

5749

assert(cp_size == (const u2)cp->length(), "invariant")do { if (!(cp_size == (const u2)cp->length())) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5749, "assert(" "cp_size == (const u2)cp->length()" ") failed"
, "invariant"); ::breakpoint(); } } while (0);

5750

5751

// ACCESS FLAGS

5752

stream->guarantee_more(8, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0); // flags, this_class, super_class, infs_len

5753

5754

// Access flags

5755

jint flags;

5756

// JVM_ACC_MODULE is defined in JDK-9 and later.

5757

if (_major_version >= JAVA_9_VERSION53) {

5758

5759

} else {

5760

5761

}

5762

5763

if ((flags & JVM_ACC_INTERFACE) && _major_version < JAVA_6_VERSION50) {

5764

// Set abstract bit for old class files for backward compatibility

5765

flags |= JVM_ACC_ABSTRACT;

5766

}

5767

5768

verify_legal_class_modifiers(flags, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5769

5770

short bad_constant = class_bad_constant_seen();

5771

if (bad_constant != 0) {

5772

// Do not throw CFE until after the access_flags are checked because if

5773

// ACC_MODULE is set in the access flags, then NCDFE must be thrown, not CFE.

5774

classfile_parse_error("Unknown constant tag %u in class file %s", bad_constant, THREAD__the_thread__);

5775

return;

5776

}

5777

5778

_access_flags.set_flags(flags);

5779

5780

// This class and superclass

5781

_this_class_index = stream->get_u2_fast();

5782

check_property(

5783

valid_cp_range(_this_class_index, cp_size) &&

5784

cp->tag_at(_this_class_index).is_unresolved_klass(),

5785

"Invalid this class index %u in constant pool in class file %s",

5786

_this_class_index, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5787

5788

Symbol* const class_name_in_cp = cp->klass_name_at(_this_class_index);

5789

assert(class_name_in_cp != NULL, "class_name can't be null")do { if (!(class_name_in_cp != __null)) { (*g_assert_poison) =
'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5789, "assert(" "class_name_in_cp != __null" ") failed", "class_name can't be null"
); ::breakpoint(); } } while (0);

5790

5791

// Don't need to check whether this class name is legal or not.

5792

// It has been checked when constant pool is parsed.

5793

// However, make sure it is not an array type.

5794

if (_need_verify) {

5795

guarantee_property(class_name_in_cp->char_at(0) != JVM_SIGNATURE_ARRAY,

5796

"Bad class name in class file %s",

5797

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5798

}

5799

5800

#ifdef ASSERT1

5801

// Basic sanity checks

5802

if (_is_hidden) {

5803

assert(_class_name != vmSymbols::unknown_class_name(), "hidden classes should have a special name")do { if (!(_class_name != vmSymbols::unknown_class_name())) {
(*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5803, "assert(" "_class_name != vmSymbols::unknown_class_name()"
") failed", "hidden classes should have a special name"); ::
breakpoint(); } } while (0);

5804

}

5805

#endif

5806

5807

// Update the _class_name as needed depending on whether this is a named, un-named, or hidden class.

5808

5809

if (_is_hidden) {

5810

assert(_class_name != NULL, "Unexpected null _class_name")do { if (!(_class_name != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5810, "assert(" "_class_name != __null" ") failed", "Unexpected null _class_name"
); ::breakpoint(); } } while (0);

5811

#ifdef ASSERT1

5812

if (_need_verify) {

5813

verify_legal_class_name(_class_name, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5814

}

5815

#endif

5816

5817

} else {

5818

// Check if name in class file matches given name

5819

if (_class_name != class_name_in_cp) {

5820

if (_class_name != vmSymbols::unknown_class_name()) {

5821

ResourceMark rm(THREAD__the_thread__);

5822

Exceptions::fthrow(THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5822,

5823

vmSymbols::java_lang_NoClassDefFoundError(),

5824

"%s (wrong name: %s)",

5825

class_name_in_cp->as_C_string(),

5826

_class_name->as_C_string()

5827

);

5828

return;

5829

} else {

5830

// The class name was not known by the caller so we set it from

5831

// the value in the CP.

5832

update_class_name(class_name_in_cp);

5833

}

5834

// else nothing to do: the expected class name matches what is in the CP

5835

}

5836

}

5837

5838

// Verification prevents us from creating names with dots in them, this

5839

// asserts that that's the case.

5840

assert(is_internal_format(_class_name), "external class name format used internally")do { if (!(is_internal_format(_class_name))) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5840, "assert(" "is_internal_format(_class_name)" ") failed"
, "external class name format used internally"); ::breakpoint
(); } } while (0);

5841

5842

if (!is_internal()) {

5843

LogTarget(Debug, class, preorder)LogTargetImpl<LogLevel::Debug, (LogTag::_class), (LogTag::
_preorder), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::
__NO_TAG), (LogTag::__NO_TAG)> lt;

5844

if (lt.is_enabled()){

5845

ResourceMark rm(THREAD__the_thread__);

5846

LogStream ls(lt);

5847

ls.print("%s", _class_name->as_klass_external_name());

5848

if (stream->source() != NULL__null) {

5849

ls.print(" source: %s", stream->source());

5850

}

5851

ls.cr();

5852

}

5853

}

5854

5855

// SUPERKLASS

5856

_super_class_index = stream->get_u2_fast();

5857

_super_klass = parse_super_class(cp,

5858

_super_class_index,

5859

_need_verify,

5860

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5861

5862

// Interfaces

5863

_itfs_len = stream->get_u2_fast();

5864

parse_interfaces(stream,

5865

_itfs_len,

5866

cp,

5867

&_has_nonstatic_concrete_methods,

5868

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5869

5870

assert(_local_interfaces != NULL, "invariant")do { if (!(_local_interfaces != __null)) { (*g_assert_poison)
= 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5870, "assert(" "_local_interfaces != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5871

5872

// Fields (offsets are filled in later)

5873

_fac = new FieldAllocationCount();

5874

parse_fields(stream,

5875

_access_flags.is_interface(),

5876

_fac,

5877

cp,

5878

cp_size,

5879

&_java_fields_count,

5880

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5881

5882

assert(_fields != NULL, "invariant")do { if (!(_fields != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5882, "assert(" "_fields != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5883

5884

// Methods

5885

AccessFlags promoted_flags;

5886

parse_methods(stream,

5887

_access_flags.is_interface(),

5888

&promoted_flags,

5889

&_has_final_method,

5890

&_declares_nonstatic_concrete_methods,

5891

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5892

5893

assert(_methods != NULL, "invariant")do { if (!(_methods != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5893, "assert(" "_methods != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5894

5895

// promote flags from parse_methods() to the klass' flags

5896

_access_flags.add_promoted_flags(promoted_flags.as_int());

5897

5898

if (_declares_nonstatic_concrete_methods) {

5899

_has_nonstatic_concrete_methods = true;

5900

}

5901

5902

// Additional attributes/annotations

5903

_parsed_annotations = new ClassAnnotationCollector();

5904

parse_classfile_attributes(stream, cp, _parsed_annotations, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5905

5906

assert(_inner_classes != NULL, "invariant")do { if (!(_inner_classes != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5906, "assert(" "_inner_classes != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5907

5908

// Finalize the Annotations metadata object,

5909

// now that all annotation arrays have been created.

5910

create_combined_annotations(CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5911

5912

// Make sure this is the end of class file stream

5913

guarantee_property(stream->at_eos(),

5914

"Extra bytes at the end of class file %s",

5915

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5916

5917

// all bytes in stream read and parsed

5918

}

5919

5920

void ClassFileParser::mangle_hidden_class_name(InstanceKlass* const ik) {

5921

ResourceMark rm;

5922

// Construct hidden name from _class_name, "+", and &ik. Note that we can't

5923

// use a '/' because that confuses finding the class's package. Also, can't

5924

// use an illegal char such as ';' because that causes serialization issues

5925

// and issues with hidden classes that create their own hidden classes.

5926

char addr_buf[20];

5927

if (DumpSharedSpaces) {

5928

// We want stable names for the archived hidden classes (only for static

5929

// archive for now). Spaces under default_SharedBaseAddress() will be

5930

// occupied by the archive at run time, so we know that no dynamically

5931

// loaded InstanceKlass will be placed under there.

5932

static volatile size_t counter = 0;

5933

Atomic::cmpxchg(&counter, (size_t)0, Arguments::default_SharedBaseAddress()); // initialize it

5934

size_t new_id = Atomic::add(&counter, (size_t)1);

5935

jio_snprintf(addr_buf, 20, SIZE_FORMAT_HEX"0x%" "l" "x", new_id);

5936

} else {

5937

jio_snprintf(addr_buf, 20, INTPTR_FORMAT"0x%016" "l" "x", p2i(ik));

5938

}

5939

size_t new_name_len = _class_name->utf8_length() + 2 + strlen(addr_buf);

5940

char* new_name = NEW_RESOURCE_ARRAY(char, new_name_len)(char*) resource_allocate_bytes((new_name_len) * sizeof(char)
);

5941

jio_snprintf(new_name, new_name_len, "%s+%s",

5942

_class_name->as_C_string(), addr_buf);

5943

update_class_name(SymbolTable::new_symbol(new_name));

5944

5945

// Add a Utf8 entry containing the hidden name.

5946

assert(_class_name != NULL, "Unexpected null _class_name")do { if (!(_class_name != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5946, "assert(" "_class_name != __null" ") failed", "Unexpected null _class_name"
); ::breakpoint(); } } while (0);

5947

int hidden_index = _orig_cp_size; // this is an extra slot we added

5948

_cp->symbol_at_put(hidden_index, _class_name);

5949

5950

// Update this_class_index's slot in the constant pool with the new Utf8 entry.

5951

// We have to update the resolved_klass_index and the name_index together

5952

// so extract the existing resolved_klass_index first.

5953

CPKlassSlot cp_klass_slot = _cp->klass_slot_at(_this_class_index);

5954

int resolved_klass_index = cp_klass_slot.resolved_klass_index();

5955

_cp->unresolved_klass_at_put(_this_class_index, hidden_index, resolved_klass_index);

5956

assert(_cp->klass_slot_at(_this_class_index).name_index() == _orig_cp_size,do { if (!(_cp->klass_slot_at(_this_class_index).name_index
() == _orig_cp_size)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5957, "assert(" "_cp->klass_slot_at(_this_class_index).name_index() == _orig_cp_size"
") failed", "Bad name_index"); ::breakpoint(); } } while (0)

5957

"Bad name_index")do { if (!(_cp->klass_slot_at(_this_class_index).name_index
() == _orig_cp_size)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5957, "assert(" "_cp->klass_slot_at(_this_class_index).name_index() == _orig_cp_size"
") failed", "Bad name_index"); ::breakpoint(); } } while (0);

5958

}

5959

5960

void ClassFileParser::post_process_parsed_stream(const ClassFileStream* const stream,

5961

ConstantPool* cp,

5962

TRAPSJavaThread* __the_thread__) {

5963

assert(stream != NULL, "invariant")do { if (!(stream != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5963, "assert(" "stream != __null" ") failed", "invariant")
; ::breakpoint(); } } while (0);

5964

assert(stream->at_eos(), "invariant")do { if (!(stream->at_eos())) { (*g_assert_poison) = 'X';;
report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5964, "assert(" "stream->at_eos()" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5965

assert(cp != NULL, "invariant")do { if (!(cp != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5965, "assert(" "cp != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

5966

assert(_loader_data != NULL, "invariant")do { if (!(_loader_data != __null)) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 5966, "assert(" "_loader_data != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

5967

5968

if (_class_name == vmSymbols::java_lang_Object()) {

5969

check_property(_local_interfaces == Universe::the_empty_instance_klass_array(),

5970

"java.lang.Object cannot implement an interface in class file %s",

5971

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5972

}

5973

// We check super class after class file is parsed and format is checked

5974

if (_super_class_index > 0 && NULL__null == _super_klass) {

5975

Symbol* const super_class_name = cp->klass_name_at(_super_class_index);

5976

if (_access_flags.is_interface()) {

5977

// Before attempting to resolve the superclass, check for class format

5978

// errors not checked yet.

5979

guarantee_property(super_class_name == vmSymbols::java_lang_Object(),

5980

"Interfaces must have java.lang.Object as superclass in class file %s",

5981

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5982

}

5983

Handle loader(THREAD__the_thread__, _loader_data->class_loader());

5984

_super_klass = (const InstanceKlass*)

5985

SystemDictionary::resolve_super_or_fail(_class_name,

5986

super_class_name,

5987

loader,

5988

_protection_domain,

5989

true,

5990

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

5991

}

5992

5993

if (_super_klass != NULL__null) {

5994

if (_super_klass->has_nonstatic_concrete_methods()) {

5995

_has_nonstatic_concrete_methods = true;

5996

}

5997

5998

if (_super_klass->is_interface()) {

5999

classfile_icce_error("class %s has interface %s as super class", _super_klass, THREAD__the_thread__);

6000

return;

6001

}

6002

}

6003

6004

// Compute the transitive list of all unique interfaces implemented by this class

6005

_transitive_interfaces =

6006

compute_transitive_interfaces(_super_klass,

6007

_local_interfaces,

6008

_loader_data,

6009

CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);

6010

6011

assert(_transitive_interfaces != NULL, "invariant")do { if (!(_transitive_interfaces != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 6011, "assert(" "_transitive_interfaces != __null" ") failed"
, "invariant"); ::breakpoint(); } } while (0);

6012

6013

// sort methods

6014

_method_ordering = sort_methods(_methods);

6015

6016

_all_mirandas = new GrowableArray<Method*>(20);

6017

6018

Handle loader(THREAD__the_thread__, _loader_data->class_loader());

6019

klassVtable::compute_vtable_size_and_num_mirandas(&_vtable_size,

6020

&_num_miranda_methods,

6021

_all_mirandas,

6022

_super_klass,

6023

_methods,

6024

_access_flags,

6025

_major_version,

6026

loader,

6027

_class_name,

6028

_local_interfaces);

6029

6030

// Size of Java itable (in words)

6031

_itable_size = _access_flags.is_interface() ? 0 :

6032

klassItable::compute_itable_size(_transitive_interfaces);

6033

6034

assert(_fac != NULL, "invariant")do { if (!(_fac != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 6034, "assert(" "_fac != __null" ") failed", "invariant"); ::
breakpoint(); } } while (0);

6035

assert(_parsed_annotations != NULL, "invariant")do { if (!(_parsed_annotations != __null)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 6035, "assert(" "_parsed_annotations != __null" ") failed",
"invariant"); ::breakpoint(); } } while (0);

6036

6037

_field_info = new FieldLayoutInfo();

6038

FieldLayoutBuilder lb(class_name(), super_klass(), _cp, _fields,

6039

_parsed_annotations->is_contended(), _field_info);

6040

lb.build_layout();

6041

6042

// Compute reference typ

6043

_rt = (NULL__null ==_super_klass) ? REF_NONE : _super_klass->reference_type();

6044

6045

}

6046

6047

void ClassFileParser::set_klass(InstanceKlass* klass) {

6048

6049

#ifdef ASSERT1

6050

if (klass != NULL__null) {

6051

assert(NULL == _klass, "leaking?")do { if (!(__null == _klass)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 6051, "assert(" "__null == _klass" ") failed", "leaking?");
::breakpoint(); } } while (0);

6052

}

6053

#endif

6054

6055

_klass = klass;

6056

}

6057

6058

void ClassFileParser::set_klass_to_deallocate(InstanceKlass* klass) {

6059

6060

#ifdef ASSERT1

6061

if (klass != NULL__null) {

6062

assert(NULL == _klass_to_deallocate, "leaking?")do { if (!(__null == _klass_to_deallocate)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 6062, "assert(" "__null == _klass_to_deallocate" ") failed"
, "leaking?"); ::breakpoint(); } } while (0);

6063

}

6064

#endif

6065

6066

_klass_to_deallocate = klass;

6067

}

6068

6069

// Caller responsible for ResourceMark

6070

// clone stream with rewound position

6071

const ClassFileStream* ClassFileParser::clone_stream() const {

6072

assert(_stream != NULL, "invariant")do { if (!(_stream != __null)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/classfile/classFileParser.cpp"
, 6072, "assert(" "_stream != __null" ") failed", "invariant"
); ::breakpoint(); } } while (0);

6073

6074

return _stream->clone();

6075

}

6076

// ----------------------------------------------------------------------------

6077

// debugging

6078

6079

#ifdef ASSERT1

6080

6081

// return true if class_name contains no '.' (internal format is '/')

6082

bool ClassFileParser::is_internal_format(Symbol* class_name) {

6083

if (class_name != NULL__null) {

6084

ResourceMark rm;

6085

char* name = class_name->as_C_string();

6086

return strchr(name, JVM_SIGNATURE_DOT) == NULL__null;

6087

} else {

6088

return true;

6089

}

6090

}

6091

6092

#endif

File:	jdk/src/hotspot/share/classfile/classFileParser.cpp
Warning:	line 1863, column 17 Value stored to 'cp_size' during its initialization is never read

Bug Summary

Annotated Source Code