src/hotspot/share/classfile/systemDictionary.hpp
author redestad
Mon, 13 Aug 2018 19:21:43 +0200
changeset 51388 0dcd27526967
parent 51371 3ab8b84e93cd
child 51429 d9f6e3ee7fcb
permissions -rw-r--r--
8209120: Archive the Integer.IntegerCache Reviewed-by: jiangli, alanb, plevart, iklam, mchung
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
48619
1703d83b3ffe 8058259: compute_offset() is confusing for static fields
coleenp
parents: 48463
diff changeset
     2
 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     4
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
489c9b5090e2 Initial load
duke
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
489c9b5090e2 Initial load
duke
parents:
diff changeset
     7
 * published by the Free Software Foundation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     8
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
489c9b5090e2 Initial load
duke
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
489c9b5090e2 Initial load
duke
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
489c9b5090e2 Initial load
duke
parents:
diff changeset
    13
 * accompanied this code).
489c9b5090e2 Initial load
duke
parents:
diff changeset
    14
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
489c9b5090e2 Initial load
duke
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    18
 *
5547
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 5421
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 5421
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 5421
diff changeset
    21
 * questions.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    22
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    23
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
    24
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 7114
diff changeset
    25
#ifndef SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 7114
diff changeset
    26
#define SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 7114
diff changeset
    27
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 7114
diff changeset
    28
#include "classfile/classLoader.hpp"
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34280
diff changeset
    29
#include "jvmci/systemDictionary_jvmci.hpp"
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 7114
diff changeset
    30
#include "oops/objArrayOop.hpp"
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7900
diff changeset
    31
#include "oops/symbol.hpp"
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 7114
diff changeset
    32
#include "runtime/java.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 7114
diff changeset
    33
#include "runtime/reflectionUtils.hpp"
48826
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
    34
#include "runtime/signature.hpp"
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 7114
diff changeset
    35
#include "utilities/hashtable.hpp"
18025
b7bcf7497f93 8005849: JEP 167: Event-Based JVM Tracing
sla
parents: 17373
diff changeset
    36
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    37
// The dictionary in each ClassLoaderData stores all loaded classes, either
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    38
// initiatied by its class loader or defined by its class loader:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    39
//
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    40
//   class loader -> ClassLoaderData -> [class, protection domain set]
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    41
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
    42
// Classes are loaded lazily. The default VM class loader is
489c9b5090e2 Initial load
duke
parents:
diff changeset
    43
// represented as NULL.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    44
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    45
// The underlying data structure is an open hash table (Dictionary) per
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    46
// ClassLoaderData with a fixed number of buckets. During loading the
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    47
// class loader object is locked, (for the VM loader a private lock object is used).
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    48
// The global SystemDictionary_lock is held for all additions into the ClassLoaderData
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    49
// dictionaries.  TODO: fix lock granularity so that class loading can
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    50
// be done concurrently, but only by different loaders.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    51
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
    52
// During loading a placeholder (name, loader) is temporarily placed in
489c9b5090e2 Initial load
duke
parents:
diff changeset
    53
// a side data structure, and is used to detect ClassCircularityErrors
489c9b5090e2 Initial load
duke
parents:
diff changeset
    54
// and to perform verification during GC.  A GC can occur in the midst
489c9b5090e2 Initial load
duke
parents:
diff changeset
    55
// of class loading, as we call out to Java, have to take locks, etc.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    56
//
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    57
// When class loading is finished, a new entry is added to the dictionary
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    58
// of the class loader and the placeholder is removed. Note that the protection
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    59
// domain field of the dictionary entry has not yet been filled in when
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    60
// the "real" dictionary entry is created.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    61
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
    62
// Clients of this class who are interested in finding if a class has
489c9b5090e2 Initial load
duke
parents:
diff changeset
    63
// been completely loaded -- not classes in the process of being loaded --
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    64
// can read the dictionary unlocked. This is safe because
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    65
//    - entries are only deleted at safepoints
489c9b5090e2 Initial load
duke
parents:
diff changeset
    66
//    - readers cannot come to a safepoint while actively examining
489c9b5090e2 Initial load
duke
parents:
diff changeset
    67
//         an entry  (an entry cannot be deleted from under a reader)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    68
//    - entries must be fully formed before they are available to concurrent
489c9b5090e2 Initial load
duke
parents:
diff changeset
    69
//         readers (we must ensure write ordering)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    70
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
    71
// Note that placeholders are deleted at any time, as they are removed
489c9b5090e2 Initial load
duke
parents:
diff changeset
    72
// when a class is completely loaded. Therefore, readers as well as writers
489c9b5090e2 Initial load
duke
parents:
diff changeset
    73
// of placeholders must hold the SystemDictionary_lock.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    74
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
    75
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34280
diff changeset
    76
class ClassFileStream;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    77
class Dictionary;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    78
class PlaceholderTable;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    79
class LoaderConstraintTable;
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 12957
diff changeset
    80
template <MEMFLAGS F> class HashtableBucket;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    81
class ResolutionErrorTable;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
    82
class SymbolPropertyTable;
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    83
class ProtectionDomainCacheTable;
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
    84
class ProtectionDomainCacheEntry;
46505
fd4bc78630b1 8174749: Use hash table/oops for MemberName table
coleenp
parents: 46435
diff changeset
    85
class GCTimer;
49738
a7bc87a63dd8 8198313: Wrap holder object for ClassLoaderData in a WeakHandle
coleenp
parents: 49480
diff changeset
    86
class OopStorage;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    87
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    88
// Certain classes are preloaded, such as java.lang.Object and java.lang.String.
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    89
// They are all "well-known", in the sense that no class loader is allowed
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    90
// to provide a different definition.
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    91
//
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    92
// These klasses must all have names defined in vmSymbols.
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    93
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    94
#define WK_KLASS_ENUM_NAME(kname)    kname##_knum
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    95
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    96
// Each well-known class has a short klass name (like object_klass),
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    97
// a vmSymbol name (like java_lang_Object), and a flag word
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    98
// that makes some minor distinctions, like whether the klass
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
    99
// is preloaded, optional, release-specific, etc.
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   100
// The order of these definitions is significant; it is the order in which
51180
b7eb9cc56277 8203382: Rename SystemDictionary::initialize_wk_klass to resolve_wk_klass
iklam
parents: 50951
diff changeset
   101
// preloading is actually performed by resolve_preloaded_classes.
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   102
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   103
#define WK_KLASSES_DO(do_klass)                                                                                          \
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   104
  /* well-known classes */                                                                                               \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   105
  do_klass(Object_klass,                                java_lang_Object,                          Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   106
  do_klass(String_klass,                                java_lang_String,                          Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   107
  do_klass(Class_klass,                                 java_lang_Class,                           Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   108
  do_klass(Cloneable_klass,                             java_lang_Cloneable,                       Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   109
  do_klass(ClassLoader_klass,                           java_lang_ClassLoader,                     Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   110
  do_klass(Serializable_klass,                          java_io_Serializable,                      Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   111
  do_klass(System_klass,                                java_lang_System,                          Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   112
  do_klass(Throwable_klass,                             java_lang_Throwable,                       Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   113
  do_klass(Error_klass,                                 java_lang_Error,                           Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   114
  do_klass(ThreadDeath_klass,                           java_lang_ThreadDeath,                     Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   115
  do_klass(Exception_klass,                             java_lang_Exception,                       Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   116
  do_klass(RuntimeException_klass,                      java_lang_RuntimeException,                Pre                 ) \
16617
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
   117
  do_klass(SecurityManager_klass,                       java_lang_SecurityManager,                 Pre                 ) \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   118
  do_klass(ProtectionDomain_klass,                      java_security_ProtectionDomain,            Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   119
  do_klass(AccessControlContext_klass,                  java_security_AccessControlContext,        Pre                 ) \
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   120
  do_klass(SecureClassLoader_klass,                     java_security_SecureClassLoader,           Pre                 ) \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   121
  do_klass(ClassNotFoundException_klass,                java_lang_ClassNotFoundException,          Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   122
  do_klass(NoClassDefFoundError_klass,                  java_lang_NoClassDefFoundError,            Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   123
  do_klass(LinkageError_klass,                          java_lang_LinkageError,                    Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   124
  do_klass(ClassCastException_klass,                    java_lang_ClassCastException,              Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   125
  do_klass(ArrayStoreException_klass,                   java_lang_ArrayStoreException,             Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   126
  do_klass(VirtualMachineError_klass,                   java_lang_VirtualMachineError,             Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   127
  do_klass(OutOfMemoryError_klass,                      java_lang_OutOfMemoryError,                Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   128
  do_klass(StackOverflowError_klass,                    java_lang_StackOverflowError,              Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   129
  do_klass(IllegalMonitorStateException_klass,          java_lang_IllegalMonitorStateException,    Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   130
  do_klass(Reference_klass,                             java_lang_ref_Reference,                   Pre                 ) \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   131
                                                                                                                         \
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   132
  /* Preload ref klasses and set reference types */                                                                      \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   133
  do_klass(SoftReference_klass,                         java_lang_ref_SoftReference,               Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   134
  do_klass(WeakReference_klass,                         java_lang_ref_WeakReference,               Pre                 ) \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   135
  do_klass(FinalReference_klass,                        java_lang_ref_FinalReference,              Pre                 ) \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   136
  do_klass(PhantomReference_klass,                      java_lang_ref_PhantomReference,            Pre                 ) \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   137
  do_klass(Finalizer_klass,                             java_lang_ref_Finalizer,                   Pre                 ) \
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   138
                                                                                                                         \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   139
  do_klass(Thread_klass,                                java_lang_Thread,                          Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   140
  do_klass(ThreadGroup_klass,                           java_lang_ThreadGroup,                     Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   141
  do_klass(Properties_klass,                            java_util_Properties,                      Pre                 ) \
44520
0553e129e0ec 8177530: Module system implementation refresh (4/2017)
alanb
parents: 41690
diff changeset
   142
  do_klass(Module_klass,                                java_lang_Module,                          Pre                 ) \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   143
  do_klass(reflect_AccessibleObject_klass,              java_lang_reflect_AccessibleObject,        Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   144
  do_klass(reflect_Field_klass,                         java_lang_reflect_Field,                   Pre                 ) \
15102
0a86564e5f61 8004728: Add hotspot support for parameter reflection
coleenp
parents: 14588
diff changeset
   145
  do_klass(reflect_Parameter_klass,                     java_lang_reflect_Parameter,               Opt                 ) \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   146
  do_klass(reflect_Method_klass,                        java_lang_reflect_Method,                  Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   147
  do_klass(reflect_Constructor_klass,                   java_lang_reflect_Constructor,             Pre                 ) \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   148
                                                                                                                         \
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10514
diff changeset
   149
  /* NOTE: needed too early in bootstrapping process to have checks based on JDK version */                              \
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10514
diff changeset
   150
  /* It's okay if this turns out to be NULL in non-1.4 JDKs. */                                                          \
37301
a936b4e01afb 8137058: Clear out all non-Critical APIs from sun.reflect
chegar
parents: 37281
diff changeset
   151
  do_klass(reflect_MagicAccessorImpl_klass,             reflect_MagicAccessorImpl,                 Opt                 ) \
a936b4e01afb 8137058: Clear out all non-Critical APIs from sun.reflect
chegar
parents: 37281
diff changeset
   152
  do_klass(reflect_MethodAccessorImpl_klass,            reflect_MethodAccessorImpl,                Pre                 ) \
a936b4e01afb 8137058: Clear out all non-Critical APIs from sun.reflect
chegar
parents: 37281
diff changeset
   153
  do_klass(reflect_ConstructorAccessorImpl_klass,       reflect_ConstructorAccessorImpl,           Pre                 ) \
a936b4e01afb 8137058: Clear out all non-Critical APIs from sun.reflect
chegar
parents: 37281
diff changeset
   154
  do_klass(reflect_DelegatingClassLoader_klass,         reflect_DelegatingClassLoader,             Opt                 ) \
a936b4e01afb 8137058: Clear out all non-Critical APIs from sun.reflect
chegar
parents: 37281
diff changeset
   155
  do_klass(reflect_ConstantPool_klass,                  reflect_ConstantPool,                      Opt                 ) \
a936b4e01afb 8137058: Clear out all non-Critical APIs from sun.reflect
chegar
parents: 37281
diff changeset
   156
  do_klass(reflect_UnsafeStaticFieldAccessorImpl_klass, reflect_UnsafeStaticFieldAccessorImpl,     Opt                 ) \
a936b4e01afb 8137058: Clear out all non-Critical APIs from sun.reflect
chegar
parents: 37281
diff changeset
   157
  do_klass(reflect_CallerSensitive_klass,               reflect_CallerSensitive,                   Opt                 ) \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   158
                                                                                                                         \
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   159
  /* support for dynamic typing; it's OK if these are NULL in earlier JDKs */                                            \
19266
bb0324cbe0aa 7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents: 18025
diff changeset
   160
  do_klass(DirectMethodHandle_klass,                    java_lang_invoke_DirectMethodHandle,       Opt                 ) \
24322
c2978d1578e3 8036956: remove EnableInvokeDynamic flag
anoll
parents: 23872
diff changeset
   161
  do_klass(MethodHandle_klass,                          java_lang_invoke_MethodHandle,             Pre                 ) \
36819
bca375d368ed 8149644: Integrate VarHandles
psandoz
parents: 35475
diff changeset
   162
  do_klass(VarHandle_klass,                             java_lang_invoke_VarHandle,                Pre                 ) \
24322
c2978d1578e3 8036956: remove EnableInvokeDynamic flag
anoll
parents: 23872
diff changeset
   163
  do_klass(MemberName_klass,                            java_lang_invoke_MemberName,               Pre                 ) \
46505
fd4bc78630b1 8174749: Use hash table/oops for MemberName table
coleenp
parents: 46435
diff changeset
   164
  do_klass(ResolvedMethodName_klass,                    java_lang_invoke_ResolvedMethodName,       Pre                 ) \
24322
c2978d1578e3 8036956: remove EnableInvokeDynamic flag
anoll
parents: 23872
diff changeset
   165
  do_klass(MethodHandleNatives_klass,                   java_lang_invoke_MethodHandleNatives,      Pre                 ) \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   166
  do_klass(LambdaForm_klass,                            java_lang_invoke_LambdaForm,               Opt                 ) \
24322
c2978d1578e3 8036956: remove EnableInvokeDynamic flag
anoll
parents: 23872
diff changeset
   167
  do_klass(MethodType_klass,                            java_lang_invoke_MethodType,               Pre                 ) \
c2978d1578e3 8036956: remove EnableInvokeDynamic flag
anoll
parents: 23872
diff changeset
   168
  do_klass(BootstrapMethodError_klass,                  java_lang_BootstrapMethodError,            Pre                 ) \
c2978d1578e3 8036956: remove EnableInvokeDynamic flag
anoll
parents: 23872
diff changeset
   169
  do_klass(CallSite_klass,                              java_lang_invoke_CallSite,                 Pre                 ) \
31037
01a5c5fa5681 8079205: CallSite dependency tracking is broken after sun.misc.Cleaner became automatically cleared
vlivanov
parents: 29576
diff changeset
   170
  do_klass(Context_klass,                               java_lang_invoke_MethodHandleNatives_CallSiteContext, Pre      ) \
24322
c2978d1578e3 8036956: remove EnableInvokeDynamic flag
anoll
parents: 23872
diff changeset
   171
  do_klass(ConstantCallSite_klass,                      java_lang_invoke_ConstantCallSite,         Pre                 ) \
c2978d1578e3 8036956: remove EnableInvokeDynamic flag
anoll
parents: 23872
diff changeset
   172
  do_klass(MutableCallSite_klass,                       java_lang_invoke_MutableCallSite,          Pre                 ) \
c2978d1578e3 8036956: remove EnableInvokeDynamic flag
anoll
parents: 23872
diff changeset
   173
  do_klass(VolatileCallSite_klass,                      java_lang_invoke_VolatileCallSite,         Pre                 ) \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   174
  /* Note: MethodHandle must be first, and VolatileCallSite last in group */                                             \
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   175
                                                                                                                         \
48619
1703d83b3ffe 8058259: compute_offset() is confusing for static fields
coleenp
parents: 48463
diff changeset
   176
  do_klass(AssertionStatusDirectives_klass,             java_lang_AssertionStatusDirectives,       Pre                 ) \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   177
  do_klass(StringBuffer_klass,                          java_lang_StringBuffer,                    Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   178
  do_klass(StringBuilder_klass,                         java_lang_StringBuilder,                   Pre                 ) \
33606
af4ec8a4635b 8139891: Prepare Unsafe for true encapsulation
chegar
parents: 33602
diff changeset
   179
  do_klass(internal_Unsafe_klass,                       jdk_internal_misc_Unsafe,                  Pre                 ) \
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 35475
diff changeset
   180
  do_klass(module_Modules_klass,                        jdk_internal_module_Modules,               Pre                 ) \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   181
                                                                                                                         \
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   182
  /* support for CDS */                                                                                                  \
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   183
  do_klass(ByteArrayInputStream_klass,                  java_io_ByteArrayInputStream,              Pre                 ) \
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   184
  do_klass(URL_klass,                                   java_net_URL,                              Pre                 ) \
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   185
  do_klass(Jar_Manifest_klass,                          java_util_jar_Manifest,                    Pre                 ) \
50039
9fec54fe663d 8197954: Remove unnecessary intermediary APIs from AppCDS implementation
iklam
parents: 49786
diff changeset
   186
  do_klass(jdk_internal_loader_ClassLoaders_klass,      jdk_internal_loader_ClassLoaders,          Pre                 ) \
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 35475
diff changeset
   187
  do_klass(jdk_internal_loader_ClassLoaders_AppClassLoader_klass,      jdk_internal_loader_ClassLoaders_AppClassLoader,       Pre ) \
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 35475
diff changeset
   188
  do_klass(jdk_internal_loader_ClassLoaders_PlatformClassLoader_klass, jdk_internal_loader_ClassLoaders_PlatformClassLoader,  Pre ) \
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   189
  do_klass(CodeSource_klass,                            java_security_CodeSource,                  Pre                 ) \
51371
3ab8b84e93cd 8207263: Store the Configuration for system modules into CDS archive.
jiangli
parents: 51329
diff changeset
   190
  do_klass(Configuration_klass,                         java_lang_module_Configuration,            Pre                 ) \
3ab8b84e93cd 8207263: Store the Configuration for system modules into CDS archive.
jiangli
parents: 51329
diff changeset
   191
  do_klass(ImmutableCollections_ListN_klass,            java_util_ImmutableCollections_ListN,      Pre                 ) \
3ab8b84e93cd 8207263: Store the Configuration for system modules into CDS archive.
jiangli
parents: 51329
diff changeset
   192
  do_klass(ImmutableCollections_MapN_klass,             java_util_ImmutableCollections_MapN,       Pre                 ) \
3ab8b84e93cd 8207263: Store the Configuration for system modules into CDS archive.
jiangli
parents: 51329
diff changeset
   193
  do_klass(ImmutableCollections_SetN_klass,             java_util_ImmutableCollections_SetN,       Pre                 ) \
50951
b96466cdfc45 8202035: Archive the set of ModuleDescriptor and ModuleReference objects for observable system modules with unnamed initial module.
jiangli
parents: 50634
diff changeset
   194
  do_klass(ArchivedModuleGraph_klass,                   jdk_internal_module_ArchivedModuleGraph,   Pre                 ) \
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   195
                                                                                                                         \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   196
  do_klass(StackTraceElement_klass,                     java_lang_StackTraceElement,               Opt                 ) \
34280
72bfaaffee36 8143911: Reintegrate JEP 259: Stack-Walking API
mchung
parents: 34273
diff changeset
   197
                                                                                                                         \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   198
  /* It's okay if this turns out to be NULL in non-1.4 JDKs. */                                                          \
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   199
  do_klass(nio_Buffer_klass,                            java_nio_Buffer,                           Opt                 ) \
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   200
                                                                                                                         \
34280
72bfaaffee36 8143911: Reintegrate JEP 259: Stack-Walking API
mchung
parents: 34273
diff changeset
   201
  /* Stack Walking */                                                                                                    \
72bfaaffee36 8143911: Reintegrate JEP 259: Stack-Walking API
mchung
parents: 34273
diff changeset
   202
  do_klass(StackWalker_klass,                           java_lang_StackWalker,                     Opt                 ) \
72bfaaffee36 8143911: Reintegrate JEP 259: Stack-Walking API
mchung
parents: 34273
diff changeset
   203
  do_klass(AbstractStackWalker_klass,                   java_lang_StackStreamFactory_AbstractStackWalker, Opt          ) \
72bfaaffee36 8143911: Reintegrate JEP 259: Stack-Walking API
mchung
parents: 34273
diff changeset
   204
  do_klass(StackFrameInfo_klass,                        java_lang_StackFrameInfo,                  Opt                 ) \
72bfaaffee36 8143911: Reintegrate JEP 259: Stack-Walking API
mchung
parents: 34273
diff changeset
   205
  do_klass(LiveStackFrameInfo_klass,                    java_lang_LiveStackFrameInfo,              Opt                 ) \
72bfaaffee36 8143911: Reintegrate JEP 259: Stack-Walking API
mchung
parents: 34273
diff changeset
   206
                                                                                                                         \
50419
146c60525d4a 8199882: compiler/uncommontrap/TestDeoptOOM.java failed w/ fatal error: ExceptionMark constructor expects no pending exceptions
dholmes
parents: 50297
diff changeset
   207
  /* support for stack dump lock analysis */                                                                             \
146c60525d4a 8199882: compiler/uncommontrap/TestDeoptOOM.java failed w/ fatal error: ExceptionMark constructor expects no pending exceptions
dholmes
parents: 50297
diff changeset
   208
  do_klass(java_util_concurrent_locks_AbstractOwnableSynchronizer_klass, java_util_concurrent_locks_AbstractOwnableSynchronizer, Pre ) \
146c60525d4a 8199882: compiler/uncommontrap/TestDeoptOOM.java failed w/ fatal error: ExceptionMark constructor expects no pending exceptions
dholmes
parents: 50297
diff changeset
   209
                                                                                                                         \
13968
8c9029c01470 8000263: JSR 292: signature types may appear to be unloaded
twisti
parents: 13929
diff changeset
   210
  /* Preload boxing klasses */                                                                                           \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   211
  do_klass(Boolean_klass,                               java_lang_Boolean,                         Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   212
  do_klass(Character_klass,                             java_lang_Character,                       Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   213
  do_klass(Float_klass,                                 java_lang_Float,                           Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   214
  do_klass(Double_klass,                                java_lang_Double,                          Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   215
  do_klass(Byte_klass,                                  java_lang_Byte,                            Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   216
  do_klass(Short_klass,                                 java_lang_Short,                           Pre                 ) \
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   217
  do_klass(Integer_klass,                               java_lang_Integer,                         Pre                 ) \
51388
0dcd27526967 8209120: Archive the Integer.IntegerCache
redestad
parents: 51371
diff changeset
   218
  do_klass(Integer_IntegerCache_klass,                  java_lang_Integer_IntegerCache,            Pre                 ) \
13973
cb904e0b6a45 8000740: remove LinkWellKnownClasses
twisti
parents: 13968
diff changeset
   219
  do_klass(Long_klass,                                  java_lang_Long,                            Pre                 ) \
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32349
diff changeset
   220
                                                                                                                         \
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32349
diff changeset
   221
  /* JVMCI classes. These are loaded on-demand. */                                                                       \
34257
4be3504cc03b 8140802: Clean up and refactor of class loading code for CDS
iklam
parents: 33606
diff changeset
   222
  JVMCI_WK_KLASSES_DO(do_klass)                                                                                          \
4be3504cc03b 8140802: Clean up and refactor of class loading code for CDS
iklam
parents: 33606
diff changeset
   223
                                                                                                                         \
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   224
  /*end*/
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   225
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   226
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   227
class SystemDictionary : AllStatic {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   228
  friend class VMStructs;
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2105
diff changeset
   229
  friend class SystemDictionaryHandles;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   230
489c9b5090e2 Initial load
duke
parents:
diff changeset
   231
 public:
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   232
  enum WKID {
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   233
    NO_WKID = 0,
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   234
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10514
diff changeset
   235
    #define WK_KLASS_ENUM(name, symbol, ignore_o) WK_KLASS_ENUM_NAME(name), WK_KLASS_ENUM_NAME(symbol) = WK_KLASS_ENUM_NAME(name),
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   236
    WK_KLASSES_DO(WK_KLASS_ENUM)
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   237
    #undef WK_KLASS_ENUM
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   238
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   239
    WKID_LIMIT,
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   240
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32349
diff changeset
   241
#if INCLUDE_JVMCI
41690
038f2064e729 8167353: [JVMCI] JVMCI re-initialization check is in the wrong location
dnsimon
parents: 40923
diff changeset
   242
    FIRST_JVMCI_WKID = WK_KLASS_ENUM_NAME(JVMCI_klass),
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32349
diff changeset
   243
    LAST_JVMCI_WKID  = WK_KLASS_ENUM_NAME(Value_klass),
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32349
diff changeset
   244
#endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32349
diff changeset
   245
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   246
    FIRST_WKID = NO_WKID + 1
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   247
  };
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   248
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   249
  enum InitOption {
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   250
    Pre,                        // preloaded; error if not present
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   251
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   252
    // Order is significant.  Options before this point require resolve_or_fail.
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   253
    // Options after this point will use resolve_or_null instead.
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   254
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   255
    Opt,                        // preload tried; NULL if not present
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32349
diff changeset
   256
#if INCLUDE_JVMCI
37281
c4e7456d6ae1 8144964: JVMCI compilations need to be disabled until the module system is initialized
twisti
parents: 36822
diff changeset
   257
    Jvmci,                      // preload tried; error if not present if JVMCI enabled
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32349
diff changeset
   258
#endif
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   259
    OPTION_LIMIT,
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24456
diff changeset
   260
    CEIL_LG_OPTION_LIMIT = 2    // OPTION_LIMIT <= (1<<CEIL_LG_OPTION_LIMIT)
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   261
  };
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   262
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   263
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   264
  // Returns a class with a given class name and class loader.  Loads the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   265
  // class if needed. If not found a NoClassDefFoundError or a
489c9b5090e2 Initial load
duke
parents:
diff changeset
   266
  // ClassNotFoundException is thrown, depending on the value on the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   267
  // throw_error flag.  For most uses the throw_error argument should be set
489c9b5090e2 Initial load
duke
parents:
diff changeset
   268
  // to true.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   269
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   270
  static Klass* resolve_or_fail(Symbol* class_name, Handle class_loader, Handle protection_domain, bool throw_error, TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   271
  // Convenient call for null loader and protection domain.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   272
  static Klass* resolve_or_fail(Symbol* class_name, bool throw_error, TRAPS);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   273
protected:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   274
  // handle error translation for resolve_or_null results
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   275
  static Klass* handle_resolution_exception(Symbol* class_name, bool throw_error, Klass* klass, TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   276
489c9b5090e2 Initial load
duke
parents:
diff changeset
   277
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   278
489c9b5090e2 Initial load
duke
parents:
diff changeset
   279
  // Returns a class with a given class name and class loader.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   280
  // Loads the class if needed. If not found NULL is returned.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   281
  static Klass* resolve_or_null(Symbol* class_name, Handle class_loader, Handle protection_domain, TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   282
  // Version with null loader and protection domain
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   283
  static Klass* resolve_or_null(Symbol* class_name, TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   284
489c9b5090e2 Initial load
duke
parents:
diff changeset
   285
  // Resolve a superclass or superinterface. Called from ClassFileParser,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   286
  // parse_interfaces, resolve_instance_class_or_null, load_shared_class
489c9b5090e2 Initial load
duke
parents:
diff changeset
   287
  // "child_name" is the class whose super class or interface is being resolved.
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   288
  static InstanceKlass* resolve_super_or_fail(Symbol* child_name,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   289
                                              Symbol* class_name,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   290
                                              Handle class_loader,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   291
                                              Handle protection_domain,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   292
                                              bool is_superclass,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   293
                                              TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   294
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   295
  // Parse new stream. This won't update the dictionary or
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   296
  // class hierarchy, simply parse the stream. Used by JVMTI RedefineClasses.
40016
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39616
diff changeset
   297
  // Also used by Unsafe_DefineAnonymousClass
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   298
  static InstanceKlass* parse_stream(Symbol* class_name,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   299
                                     Handle class_loader,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   300
                                     Handle protection_domain,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   301
                                     ClassFileStream* st,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   302
                                     TRAPS) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34280
diff changeset
   303
    return parse_stream(class_name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34280
diff changeset
   304
                        class_loader,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34280
diff changeset
   305
                        protection_domain,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34280
diff changeset
   306
                        st,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34280
diff changeset
   307
                        NULL, // host klass
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34280
diff changeset
   308
                        NULL, // cp_patches
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34280
diff changeset
   309
                        THREAD);
1550
be2fc37a817f 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 670
diff changeset
   310
  }
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   311
  static InstanceKlass* parse_stream(Symbol* class_name,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   312
                                     Handle class_loader,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   313
                                     Handle protection_domain,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   314
                                     ClassFileStream* st,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   315
                                     const InstanceKlass* host_klass,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   316
                                     GrowableArray<Handle>* cp_patches,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   317
                                     TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   318
489c9b5090e2 Initial load
duke
parents:
diff changeset
   319
  // Resolve from stream (called by jni_DefineClass and JVM_DefineClass)
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   320
  static InstanceKlass* resolve_from_stream(Symbol* class_name,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   321
                                            Handle class_loader,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   322
                                            Handle protection_domain,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   323
                                            ClassFileStream* st,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   324
                                            TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   325
489c9b5090e2 Initial load
duke
parents:
diff changeset
   326
  // Lookup an already loaded class. If not found NULL is returned.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   327
  static Klass* find(Symbol* class_name, Handle class_loader, Handle protection_domain, TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   328
489c9b5090e2 Initial load
duke
parents:
diff changeset
   329
  // Lookup an already loaded instance or array class.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   330
  // Do not make any queries to class loaders; consult only the cache.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   331
  // If not found NULL is returned.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   332
  static Klass* find_instance_or_array_klass(Symbol* class_name,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   333
                                               Handle class_loader,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   334
                                               Handle protection_domain,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   335
                                               TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   336
489c9b5090e2 Initial load
duke
parents:
diff changeset
   337
  // Lookup an instance or array class that has already been loaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
   338
  // either into the given class loader, or else into another class
489c9b5090e2 Initial load
duke
parents:
diff changeset
   339
  // loader that is constrained (via loader constraints) to produce
489c9b5090e2 Initial load
duke
parents:
diff changeset
   340
  // a consistent class.  Do not take protection domains into account.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   341
  // Do not make any queries to class loaders; consult only the cache.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   342
  // Return NULL if the class is not found.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   343
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   344
  // This function is a strict superset of find_instance_or_array_klass.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   345
  // This function (the unchecked version) makes a conservative prediction
489c9b5090e2 Initial load
duke
parents:
diff changeset
   346
  // of the result of the checked version, assuming successful lookup.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   347
  // If both functions return non-null, they must return the same value.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   348
  // Also, the unchecked version may sometimes be non-null where the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   349
  // checked version is null.  This can occur in several ways:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   350
  //   1. No query has yet been made to the class loader.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   351
  //   2. The class loader was queried, but chose not to delegate.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   352
  //   3. ClassLoader.checkPackageAccess rejected a proposed protection domain.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   353
  //   4. Loading was attempted, but there was a linkage error of some sort.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   354
  // In all of these cases, the loader constraints on this type are
489c9b5090e2 Initial load
duke
parents:
diff changeset
   355
  // satisfied, and it is safe for classes in the given class loader
489c9b5090e2 Initial load
duke
parents:
diff changeset
   356
  // to manipulate strongly-typed values of the found class, subject
489c9b5090e2 Initial load
duke
parents:
diff changeset
   357
  // to local linkage and access checks.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   358
  static Klass* find_constrained_instance_or_array_klass(Symbol* class_name,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   359
                                                           Handle class_loader,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   360
                                                           TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   361
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46742
diff changeset
   362
  static void classes_do(MetaspaceClosure* it);
46380
4a51438196cf 8026985: Rewrite SystemDictionary::classes_do and Dictionary::classes_do to use KlassClosure
coleenp
parents: 46329
diff changeset
   363
  // Iterate over all methods in all klasses
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46742
diff changeset
   364
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   365
  static void methods_do(void f(Method*));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   366
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
  // Garbage collection support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   368
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
  // Unload (that is, break root links to) all unmarked classes and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
  // loaders.  Returns "true" iff something was unloaded.
50297
580744d900c8 8202813: Move vm_weak processing from SystemDictionary to WeakProcessor
coleenp
parents: 50152
diff changeset
   371
  static bool do_unloading(GCTimer* gc_timer,
46505
fd4bc78630b1 8174749: Use hash table/oops for MemberName table
coleenp
parents: 46435
diff changeset
   372
                           bool do_cleaning = true);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   374
  // Used by DumpSharedSpaces only to remove classes that failed verification
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   375
  static void remove_classes_in_error_state();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   376
11628
13155c0c00b4 7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents: 10546
diff changeset
   377
  static int calculate_systemdictionary_size(int loadedclasses);
13155c0c00b4 7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents: 10546
diff changeset
   378
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
  // Applies "f->do_oop" to all root oops in the system dictionary.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   380
  static void oops_do(OopClosure* f);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
489c9b5090e2 Initial load
duke
parents:
diff changeset
   382
  // System loader lock
489c9b5090e2 Initial load
duke
parents:
diff changeset
   383
  static oop system_loader_lock()           { return _system_loader_lock_obj; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   386
  // Sharing support.
47761
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47614
diff changeset
   387
  static void reorder_dictionary_for_sharing() NOT_CDS_RETURN;
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46746
diff changeset
   388
  static void combine_shared_dictionaries();
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46742
diff changeset
   389
  static size_t count_bytes_for_buckets();
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46742
diff changeset
   390
  static size_t count_bytes_for_table();
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46742
diff changeset
   391
  static void copy_buckets(char* top, char* end);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46742
diff changeset
   392
  static void copy_table(char* top, char* end);
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 12957
diff changeset
   393
  static void set_shared_dictionary(HashtableBucket<mtClass>* t, int length,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   394
                                    int number_of_entries);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
  // Printing
46742
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   396
  static void print() { return print_on(tty); }
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   397
  static void print_on(outputStream* st);
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   398
  static void print_shared(outputStream* st);
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   399
  static void dump(outputStream* st, bool verbose);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
  // Monotonically increasing counter which grows as classes are
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
  // loaded or modifications such as hot-swapping or setting/removing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
  // of breakpoints are performed
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
  static inline int number_of_modifications()     { assert_locked_or_safepoint(Compile_lock); return _number_of_modifications; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
  // Needed by evolution and breakpoint code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
  static inline void notice_modification()        { assert_locked_or_safepoint(Compile_lock); ++_number_of_modifications;      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
  // Verification
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
  static void verify();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
  // Initialization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
  static void initialize(TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
38708
8c27a4f8b242 8154589: assert(k != NULL) failed: preloaded klass not initialized
dholmes
parents: 37301
diff changeset
   414
  // Checked fast access to commonly used classes - mostly preloaded
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   415
  static InstanceKlass* check_klass(InstanceKlass* k) {
38708
8c27a4f8b242 8154589: assert(k != NULL) failed: preloaded klass not initialized
dholmes
parents: 37301
diff changeset
   416
    assert(k != NULL, "klass not loaded");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
    return k;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   420
  static InstanceKlass* check_klass_Pre(InstanceKlass* k) { return check_klass(k); }
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   421
  static InstanceKlass* check_klass_Opt(InstanceKlass* k) { return k; }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   423
  JVMCI_ONLY(static InstanceKlass* check_klass_Jvmci(InstanceKlass* k) { return k; })
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 32349
diff changeset
   424
51180
b7eb9cc56277 8203382: Rename SystemDictionary::initialize_wk_klass to resolve_wk_klass
iklam
parents: 50951
diff changeset
   425
  static bool resolve_wk_klass(WKID id, int init_opt, TRAPS);
b7eb9cc56277 8203382: Rename SystemDictionary::initialize_wk_klass to resolve_wk_klass
iklam
parents: 50951
diff changeset
   426
  static void resolve_wk_klasses_until(WKID limit_id, WKID &start_id, TRAPS);
b7eb9cc56277 8203382: Rename SystemDictionary::initialize_wk_klass to resolve_wk_klass
iklam
parents: 50951
diff changeset
   427
  static void resolve_wk_klasses_through(WKID end_id, WKID &start_id, TRAPS) {
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   428
    int limit = (int)end_id + 1;
51180
b7eb9cc56277 8203382: Rename SystemDictionary::initialize_wk_klass to resolve_wk_klass
iklam
parents: 50951
diff changeset
   429
    resolve_wk_klasses_until((WKID) limit, start_id, THREAD);
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   430
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   432
public:
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10514
diff changeset
   433
  #define WK_KLASS_DECLARE(name, symbol, option) \
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   434
    static InstanceKlass* name() { return check_klass_##option(_well_known_klasses[WK_KLASS_ENUM_NAME(name)]); } \
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   435
    static InstanceKlass** name##_addr() {                                                                       \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   436
      return &SystemDictionary::_well_known_klasses[SystemDictionary::WK_KLASS_ENUM_NAME(name)];           \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   437
    }
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   438
  WK_KLASSES_DO(WK_KLASS_DECLARE);
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   439
  #undef WK_KLASS_DECLARE
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   441
  static InstanceKlass* well_known_klass(WKID id) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10514
diff changeset
   442
    assert(id >= (int)FIRST_WKID && id < (int)WKID_LIMIT, "oob");
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10514
diff changeset
   443
    return _well_known_klasses[id];
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10514
diff changeset
   444
  }
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10514
diff changeset
   445
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   446
  static InstanceKlass** well_known_klass_addr(WKID id) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   447
    assert(id >= (int)FIRST_WKID && id < (int)WKID_LIMIT, "oob");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   448
    return &_well_known_klasses[id];
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   449
  }
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46742
diff changeset
   450
  static void well_known_klasses_do(MetaspaceClosure* it);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   451
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   452
  // Local definition for direct access to the private array:
394
c33507c3ac75 6701024: SAJDI functionality is broken
jrose
parents: 379
diff changeset
   453
  #define WK_KLASS(name) _well_known_klasses[SystemDictionary::WK_KLASS_ENUM_NAME(name)]
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   455
  static InstanceKlass* box_klass(BasicType t) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
    assert((uint)t < T_VOID+1, "range check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
    return check_klass(_box_klasses[t]);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   459
  static BasicType box_klass_type(Klass* k);  // inverse of box_klass
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   461
protected:
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   462
  // Returns the class loader data to be used when looking up/updating the
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   463
  // system dictionary.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   464
  static ClassLoaderData *class_loader_data(Handle class_loader) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   465
    return ClassLoaderData::class_loader_data(class_loader());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   466
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   467
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
  // Tells whether ClassLoader.checkPackageAccess is present
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
  static bool has_checkPackageAccess()      { return _has_checkPackageAccess; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
15102
0a86564e5f61 8004728: Add hotspot support for parameter reflection
coleenp
parents: 14588
diff changeset
   472
  static bool Parameter_klass_loaded()      { return WK_KLASS(reflect_Parameter_klass) != NULL; }
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4564
diff changeset
   473
  static bool Class_klass_loaded()          { return WK_KLASS(Class_klass) != NULL; }
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4564
diff changeset
   474
  static bool Cloneable_klass_loaded()      { return WK_KLASS(Cloneable_klass) != NULL; }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   475
  static bool Object_klass_loaded()         { return WK_KLASS(Object_klass) != NULL; }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   476
  static bool ClassLoader_klass_loaded()    { return WK_KLASS(ClassLoader_klass) != NULL; }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
47614
0ecfd6c951a6 8185694: Replace SystemDictionaryShared::_java_platform_loader with SystemDictionary::is_platform_class_loader()
ccheung
parents: 47216
diff changeset
   478
  // Returns java system loader
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
  static oop java_system_loader();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
47614
0ecfd6c951a6 8185694: Replace SystemDictionaryShared::_java_platform_loader with SystemDictionary::is_platform_class_loader()
ccheung
parents: 47216
diff changeset
   481
  // Returns java platform loader
0ecfd6c951a6 8185694: Replace SystemDictionaryShared::_java_platform_loader with SystemDictionary::is_platform_class_loader()
ccheung
parents: 47216
diff changeset
   482
  static oop java_platform_loader();
0ecfd6c951a6 8185694: Replace SystemDictionaryShared::_java_platform_loader with SystemDictionary::is_platform_class_loader()
ccheung
parents: 47216
diff changeset
   483
0ecfd6c951a6 8185694: Replace SystemDictionaryShared::_java_platform_loader with SystemDictionary::is_platform_class_loader()
ccheung
parents: 47216
diff changeset
   484
  // Compute the java system and platform loaders
0ecfd6c951a6 8185694: Replace SystemDictionaryShared::_java_platform_loader with SystemDictionary::is_platform_class_loader()
ccheung
parents: 47216
diff changeset
   485
  static void compute_java_loaders(TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   487
  // Register a new class loader
49348
fde3feaaa4ed 8198926: Move ClassLoaderData::_dependencies to ClassLoaderData::_handles
coleenp
parents: 49037
diff changeset
   488
  static ClassLoaderData* register_loader(Handle class_loader);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   489
protected:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
  // Mirrors for primitive classes (created eagerly)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  static oop check_mirror(oop m) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
    assert(m != NULL, "mirror not initialized");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
    return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
  // Note:  java_lang_Class::primitive_type is the inverse of java_mirror
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
  // Check class loader constraints
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7900
diff changeset
   500
  static bool add_loader_constraint(Symbol* name, Handle loader1,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
                                    Handle loader2, TRAPS);
16591
73047b0eb568 8009731: Confusing error message for loader constraint violation
acorn
parents: 16352
diff changeset
   502
  static Symbol* check_signature_loaders(Symbol* signature, Handle loader1,
73047b0eb568 8009731: Confusing error message for loader constraint violation
acorn
parents: 16352
diff changeset
   503
                                         Handle loader2, bool is_method, TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
   505
  // JSR 292
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   506
  // find a java.lang.invoke.MethodHandle.invoke* method for a given signature
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   507
  // (asks Java to compute it if necessary, except in a compiler thread)
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   508
  static methodHandle find_method_handle_invoker(Klass* klass,
36819
bca375d368ed 8149644: Integrate VarHandles
psandoz
parents: 35475
diff changeset
   509
                                                 Symbol* name,
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   510
                                                 Symbol* signature,
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   511
                                                 Klass* accessing_klass,
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   512
                                                 Handle *appendix_result,
13929
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13728
diff changeset
   513
                                                 Handle *method_type_result,
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   514
                                                 TRAPS);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   515
  // for a given signature, find the internal MethodHandle method (linkTo* or invokeBasic)
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   516
  // (does not ask Java, since this is a low-level intrinsic defined by the JVM)
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   517
  static methodHandle find_method_handle_intrinsic(vmIntrinsics::ID iid,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   518
                                                   Symbol* signature,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   519
                                                   TRAPS);
48826
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   520
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   521
  // compute java_mirror (java.lang.Class instance) for a type ("I", "[[B", "LFoo;", etc.)
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   522
  // Either the accessing_klass or the CL/PD can be non-null, but not both.
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   523
  static Handle    find_java_mirror_for_type(Symbol* signature,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   524
                                             Klass* accessing_klass,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   525
                                             Handle class_loader,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   526
                                             Handle protection_domain,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   527
                                             SignatureStream::FailureMode failure_mode,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   528
                                             TRAPS);
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   529
  static Handle    find_java_mirror_for_type(Symbol* signature,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   530
                                             Klass* accessing_klass,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   531
                                             SignatureStream::FailureMode failure_mode,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   532
                                             TRAPS) {
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   533
    // callee will fill in CL/PD from AK, if they are needed
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   534
    return find_java_mirror_for_type(signature, accessing_klass, Handle(), Handle(),
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   535
                                     failure_mode, THREAD);
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   536
  }
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   537
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   538
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   539
  // fast short-cut for the one-character case:
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   540
  static oop       find_java_mirror_for_type(char signature_char);
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   541
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   542
  // find a java.lang.invoke.MethodType object for a given signature
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   543
  // (asks Java to compute it if necessary, except in a compiler thread)
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7900
diff changeset
   544
  static Handle    find_method_handle_type(Symbol* signature,
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   545
                                           Klass* accessing_klass,
5420
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 4581
diff changeset
   546
                                           TRAPS);
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   547
48514
9608f7f41c4e 8188145: MethodHandle resolution should follow JVMS sequence of lookup by name & type before type descriptor resolution
vlivanov
parents: 47774
diff changeset
   548
  // find a java.lang.Class object for a given signature
9608f7f41c4e 8188145: MethodHandle resolution should follow JVMS sequence of lookup by name & type before type descriptor resolution
vlivanov
parents: 47774
diff changeset
   549
  static Handle    find_field_handle_type(Symbol* signature,
9608f7f41c4e 8188145: MethodHandle resolution should follow JVMS sequence of lookup by name & type before type descriptor resolution
vlivanov
parents: 47774
diff changeset
   550
                                          Klass* accessing_klass,
9608f7f41c4e 8188145: MethodHandle resolution should follow JVMS sequence of lookup by name & type before type descriptor resolution
vlivanov
parents: 47774
diff changeset
   551
                                          TRAPS);
9608f7f41c4e 8188145: MethodHandle resolution should follow JVMS sequence of lookup by name & type before type descriptor resolution
vlivanov
parents: 47774
diff changeset
   552
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8675
diff changeset
   553
  // ask Java to compute a java.lang.invoke.MethodHandle object for a given CP entry
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   554
  static Handle    link_method_handle_constant(Klass* caller,
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5547
diff changeset
   555
                                               int ref_kind, //e.g., JVM_REF_invokeVirtual
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   556
                                               Klass* callee,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7900
diff changeset
   557
                                               Symbol* name,
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7900
diff changeset
   558
                                               Symbol* signature,
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5547
diff changeset
   559
                                               TRAPS);
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   560
48826
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   561
  // ask Java to compute a constant by invoking a BSM given a Dynamic_info CP entry
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   562
  static Handle    link_dynamic_constant(Klass* caller,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   563
                                         int condy_index,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   564
                                         Handle bootstrap_specifier,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   565
                                         Symbol* name,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   566
                                         Symbol* type,
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   567
                                         TRAPS);
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   568
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   569
  // ask Java to create a dynamic call site, while linking an invokedynamic op
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   570
  static methodHandle find_dynamic_call_site_invoker(Klass* caller,
48826
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48637
diff changeset
   571
                                                     int indy_index,
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   572
                                                     Handle bootstrap_method,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   573
                                                     Symbol* name,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   574
                                                     Symbol* type,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   575
                                                     Handle *appendix_result,
13929
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13728
diff changeset
   576
                                                     Handle *method_type_result,
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   577
                                                     TRAPS);
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   578
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
  // Record the error when the first attempt to resolve a reference from a constant
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
  // pool entry to a class fails.
33593
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33160
diff changeset
   581
  static void add_resolution_error(const constantPoolHandle& pool, int which, Symbol* error,
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   582
                                   Symbol* message);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   583
  static void delete_resolution_error(ConstantPool* pool);
33593
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33160
diff changeset
   584
  static Symbol* find_resolution_error(const constantPoolHandle& pool, int which,
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   585
                                       Symbol** message);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   587
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   588
  static ProtectionDomainCacheEntry* cache_get(Handle protection_domain);
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   589
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   590
 protected:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
  enum Constants {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
    _loader_constraint_size = 107,                     // number of entries in constraint table
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
    _resolution_error_size  = 107,                     // number of entries in resolution error table
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
   595
    _invoke_method_size     = 139,                     // number of entries in invoke method table
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   596
    _shared_dictionary_size = 1009,                    // number of entries in shared dictionary
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   597
    _placeholder_table_size = 1009                     // number of entries in hash table for placeholders
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   601
  // Static tables owned by the SystemDictionary
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
  // Hashtable holding placeholders for classes being loaded.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
  static PlaceholderTable*       _placeholders;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
  // Hashtable holding classes from the shared archive.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
  static Dictionary*             _shared_dictionary;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
  // Monotonically increasing counter which grows with
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   610
  // loading classes as well as hot-swapping and breakpoint setting
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  // and removal.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
  static int                     _number_of_modifications;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
  // Lock object for system class loader
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
  static oop                     _system_loader_lock_obj;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
  // Constraints on class loaders
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
  static LoaderConstraintTable*  _loader_constraints;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  // Resolution errors
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
  static ResolutionErrorTable*   _resolution_errors;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
   623
  // Invoke methods (JSR 292)
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
   624
  static SymbolPropertyTable*    _invoke_method_table;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
   625
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   626
  // ProtectionDomain cache
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   627
  static ProtectionDomainCacheTable*   _pd_cache_table;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
49738
a7bc87a63dd8 8198313: Wrap holder object for ClassLoaderData in a WeakHandle
coleenp
parents: 49480
diff changeset
   629
  // VM weak OopStorage object.
a7bc87a63dd8 8198313: Wrap holder object for ClassLoaderData in a WeakHandle
coleenp
parents: 49480
diff changeset
   630
  static OopStorage*             _vm_weak_oop_storage;
a7bc87a63dd8 8198313: Wrap holder object for ClassLoaderData in a WeakHandle
coleenp
parents: 49480
diff changeset
   631
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   632
protected:
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   633
  static void validate_protection_domain(InstanceKlass* klass,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
                                         Handle class_loader,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
                                         Handle protection_domain, TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
  friend class VM_PopulateDumpSharedSpace;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
  friend class TraversePlaceholdersClosure;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
  static Dictionary*         shared_dictionary() { return _shared_dictionary; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
  static PlaceholderTable*   placeholders() { return _placeholders; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
  static LoaderConstraintTable* constraints() { return _loader_constraints; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
  static ResolutionErrorTable* resolution_errors() { return _resolution_errors; }
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
   643
  static SymbolPropertyTable* invoke_method_table() { return _invoke_method_table; }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
  // Basic loading operations
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   646
  static InstanceKlass* resolve_instance_class_or_null_helper(Symbol* name,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   647
                                                              Handle class_loader,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   648
                                                              Handle protection_domain,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   649
                                                              TRAPS);
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51180
diff changeset
   650
  static InstanceKlass* resolve_instance_class_or_null(Symbol* class_name, Handle class_loader, Handle protection_domain, TRAPS);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   651
  static Klass* resolve_array_class_or_null(Symbol* class_name, Handle class_loader, Handle protection_domain, TRAPS);
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   652
  static InstanceKlass* handle_parallel_super_load(Symbol* class_name, Symbol* supername, Handle class_loader, Handle protection_domain, Handle lockObject, TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
  // Wait on SystemDictionary_lock; unlocks lockObject before
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
  // waiting; relocks lockObject with correct recursion count
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
  // after waiting, but before reentering SystemDictionary_lock
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
  // to preserve lock order semantics.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
  static void double_lock_wait(Handle lockObject, TRAPS);
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   658
  static void define_instance_class(InstanceKlass* k, TRAPS);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   659
  static InstanceKlass* find_or_define_instance_class(Symbol* class_name,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
                                                Handle class_loader,
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   661
                                                InstanceKlass* k, TRAPS);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   662
  static bool is_shared_class_visible(Symbol* class_name, InstanceKlass* ik,
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 35475
diff changeset
   663
                                      Handle class_loader, TRAPS);
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   664
  static InstanceKlass* load_shared_class(InstanceKlass* ik,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   665
                                          Handle class_loader,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   666
                                          Handle protection_domain,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   667
                                          TRAPS);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   668
  static InstanceKlass* load_instance_class(Symbol* class_name, Handle class_loader, TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
  static Handle compute_loader_lock_object(Handle class_loader, TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
  static void check_loader_lock_contention(Handle loader_lock, TRAPS);
1890
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1550
diff changeset
   671
  static bool is_parallelCapable(Handle class_loader);
4445
1356c4b003de 6893504: LinkageError for bootstrap duplicate class definitions.
acorn
parents: 3820
diff changeset
   672
  static bool is_parallelDefine(Handle class_loader);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
16617
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
   674
public:
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   675
  static InstanceKlass* load_shared_class(Symbol* class_name,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   676
                                          Handle class_loader,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   677
                                          TRAPS);
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 41690
diff changeset
   678
  static bool is_system_class_loader(oop class_loader);
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 41690
diff changeset
   679
  static bool is_platform_class_loader(oop class_loader);
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46746
diff changeset
   680
  static void clear_invoke_method_table();
16617
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
   681
48463
474cec233fb2 8154587: Resolution fails for default method named 'clone'
hseigel
parents: 47774
diff changeset
   682
  // Returns TRUE if the method is a non-public member of class java.lang.Object.
474cec233fb2 8154587: Resolution fails for default method named 'clone'
hseigel
parents: 47774
diff changeset
   683
  static bool is_nonpublic_Object_method(Method* m) {
474cec233fb2 8154587: Resolution fails for default method named 'clone'
hseigel
parents: 47774
diff changeset
   684
    assert(m != NULL, "Unexpected NULL Method*");
474cec233fb2 8154587: Resolution fails for default method named 'clone'
hseigel
parents: 47774
diff changeset
   685
    return !m->is_public() && m->method_holder() == SystemDictionary::Object_klass();
474cec233fb2 8154587: Resolution fails for default method named 'clone'
hseigel
parents: 47774
diff changeset
   686
  }
474cec233fb2 8154587: Resolution fails for default method named 'clone'
hseigel
parents: 47774
diff changeset
   687
49738
a7bc87a63dd8 8198313: Wrap holder object for ClassLoaderData in a WeakHandle
coleenp
parents: 49480
diff changeset
   688
  static void initialize_oop_storage();
a7bc87a63dd8 8198313: Wrap holder object for ClassLoaderData in a WeakHandle
coleenp
parents: 49480
diff changeset
   689
  static OopStorage* vm_weak_oop_storage();
a7bc87a63dd8 8198313: Wrap holder object for ClassLoaderData in a WeakHandle
coleenp
parents: 49480
diff changeset
   690
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25492
diff changeset
   691
protected:
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   692
  static InstanceKlass* find_shared_class(Symbol* class_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
  // Setup link to hierarchy
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   695
  static void add_to_hierarchy(InstanceKlass* k, TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
  // Basic find on loaded classes
47774
69c081ca110a 8184765: Dynamically resize SystemDictionary
gziemski
parents: 47761
diff changeset
   698
  static InstanceKlass* find_class(unsigned int hash,
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46505
diff changeset
   699
                                   Symbol* name, Dictionary* dictionary);
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   700
  static InstanceKlass* find_class(Symbol* class_name, ClassLoaderData* loader_data);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
  // Basic find on classes in the midst of being loaded
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   703
  static Symbol* find_placeholder(Symbol* name, ClassLoaderData* loader_data);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
  // Add a placeholder for a class being loaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
  static void add_placeholder(int index,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7900
diff changeset
   707
                              Symbol* class_name,
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   708
                              ClassLoaderData* loader_data);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
  static void remove_placeholder(int index,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7900
diff changeset
   710
                                 Symbol* class_name,
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   711
                                 ClassLoaderData* loader_data);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
  // Performs cleanups after resolve_super_or_fail. This typically needs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
  // to be called on failure.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
  // Won't throw, but can block.
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7900
diff changeset
   716
  static void resolution_cleanups(Symbol* class_name,
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   717
                                  ClassLoaderData* loader_data,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
                                  TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
51180
b7eb9cc56277 8203382: Rename SystemDictionary::initialize_wk_klass to resolve_wk_klass
iklam
parents: 50951
diff changeset
   720
  // Resolve preloaded classes so they can be used like SystemDictionary::String_klass()
b7eb9cc56277 8203382: Rename SystemDictionary::initialize_wk_klass to resolve_wk_klass
iklam
parents: 50951
diff changeset
   721
  static void resolve_preloaded_classes(TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
  // Class loader constraints
47774
69c081ca110a 8184765: Dynamically resize SystemDictionary
gziemski
parents: 47761
diff changeset
   724
  static void check_constraints(unsigned int hash,
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   725
                                InstanceKlass* k, Handle loader,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
                                bool defining, TRAPS);
47774
69c081ca110a 8184765: Dynamically resize SystemDictionary
gziemski
parents: 47761
diff changeset
   727
  static void update_dictionary(unsigned int d_hash,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
                                int p_index, unsigned int p_hash,
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46271
diff changeset
   729
                                InstanceKlass* k, Handle loader,
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   730
                                TRAPS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
  // Variables holding commonly used klasses (preloaded)
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   733
  static InstanceKlass* _well_known_klasses[];
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
379
10767ca40189 6652736: well known classes in system dictionary are inefficiently processed
jrose
parents: 1
diff changeset
   735
  // table of box klasses (int_klass, etc.)
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
   736
  static InstanceKlass* _box_klasses[T_VOID+1];
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
50152
b5023063346d 8189140: SystemDictionaryShared::initialize() should be renamed to be more meaningful
iklam
parents: 50063
diff changeset
   738
private:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
  static oop  _java_system_loader;
47614
0ecfd6c951a6 8185694: Replace SystemDictionaryShared::_java_platform_loader with SystemDictionary::is_platform_class_loader()
ccheung
parents: 47216
diff changeset
   740
  static oop  _java_platform_loader;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
  static bool _has_checkPackageAccess;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
};
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2105
diff changeset
   744
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 7114
diff changeset
   745
#endif // SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP