Tue, 10 Apr 2012 09:31:04 -0700
7159772: instanceKlass::all_fields_count() returns incorrect total field count
Summary: Fix instanceKlass::all_fields_count() bug.
Reviewed-by: kvn, never
Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>
1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 * accompanied this code).
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23 */
25 #ifndef SHARE_VM_OOPS_INSTANCEKLASS_HPP
26 #define SHARE_VM_OOPS_INSTANCEKLASS_HPP
28 #include "oops/constMethodOop.hpp"
29 #include "oops/constantPoolOop.hpp"
30 #include "oops/fieldInfo.hpp"
31 #include "oops/instanceOop.hpp"
32 #include "oops/klassOop.hpp"
33 #include "oops/klassVtable.hpp"
34 #include "oops/objArrayOop.hpp"
35 #include "runtime/handles.hpp"
36 #include "runtime/os.hpp"
37 #include "utilities/accessFlags.hpp"
38 #include "utilities/bitMap.inline.hpp"
40 // An instanceKlass is the VM level representation of a Java class.
41 // It contains all information needed for at class at execution runtime.
43 // instanceKlass layout:
44 // [header ] klassOop
45 // [klass pointer ] klassOop
46 // [C++ vtbl pointer ] Klass
47 // [subtype cache ] Klass
48 // [instance size ] Klass
49 // [java mirror ] Klass
50 // [super ] Klass
51 // [access_flags ] Klass
52 // [name ] Klass
53 // [first subklass ] Klass
54 // [next sibling ] Klass
55 // [array klasses ]
56 // [methods ]
57 // [local interfaces ]
58 // [transitive interfaces ]
59 // [number of implementors ]
60 // [implementors ] klassOop[2]
61 // [fields ]
62 // [constants ]
63 // [class loader ]
64 // [protection domain ]
65 // [signers ]
66 // [source file name ]
67 // [inner classes ]
68 // [static field size ]
69 // [nonstatic field size ]
70 // [static oop fields size ]
71 // [nonstatic oop maps size ]
72 // [has finalize method ]
73 // [deoptimization mark bit ]
74 // [initialization state ]
75 // [initializing thread ]
76 // [Java vtable length ]
77 // [oop map cache (stack maps) ]
78 // [EMBEDDED Java vtable ] size in words = vtable_len
79 // [EMBEDDED nonstatic oop-map blocks] size in words = nonstatic_oop_map_size
80 //
81 // The embedded nonstatic oop-map blocks are short pairs (offset, length) indicating
82 // where oops are located in instances of this klass.
85 // forward declaration for class -- see below for definition
86 class SuperTypeClosure;
87 class JNIid;
88 class jniIdMapBase;
89 class BreakpointInfo;
90 class fieldDescriptor;
91 class DepChange;
92 class nmethodBucket;
93 class PreviousVersionNode;
94 class JvmtiCachedClassFieldMap;
96 // This is used in iterators below.
97 class FieldClosure: public StackObj {
98 public:
99 virtual void do_field(fieldDescriptor* fd) = 0;
100 };
102 #ifndef PRODUCT
103 // Print fields.
104 // If "obj" argument to constructor is NULL, prints static fields, otherwise prints non-static fields.
105 class FieldPrinter: public FieldClosure {
106 oop _obj;
107 outputStream* _st;
108 public:
109 FieldPrinter(outputStream* st, oop obj = NULL) : _obj(obj), _st(st) {}
110 void do_field(fieldDescriptor* fd);
111 };
112 #endif // !PRODUCT
114 // ValueObjs embedded in klass. Describes where oops are located in instances of
115 // this klass.
116 class OopMapBlock VALUE_OBJ_CLASS_SPEC {
117 public:
118 // Byte offset of the first oop mapped by this block.
119 int offset() const { return _offset; }
120 void set_offset(int offset) { _offset = offset; }
122 // Number of oops in this block.
123 uint count() const { return _count; }
124 void set_count(uint count) { _count = count; }
126 // sizeof(OopMapBlock) in HeapWords.
127 static const int size_in_words() {
128 return align_size_up(int(sizeof(OopMapBlock)), HeapWordSize) >>
129 LogHeapWordSize;
130 }
132 private:
133 int _offset;
134 uint _count;
135 };
137 class instanceKlass: public Klass {
138 friend class VMStructs;
139 public:
140 // See "The Java Virtual Machine Specification" section 2.16.2-5 for a detailed description
141 // of the class loading & initialization procedure, and the use of the states.
142 enum ClassState {
143 unparsable_by_gc = 0, // object is not yet parsable by gc. Value of _init_state at object allocation.
144 allocated, // allocated (but not yet linked)
145 loaded, // loaded and inserted in class hierarchy (but not linked yet)
146 linked, // successfully linked/verified (but not initialized yet)
147 being_initialized, // currently running class initializer
148 fully_initialized, // initialized (successfull final state)
149 initialization_error // error happened during initialization
150 };
152 public:
153 oop* oop_block_beg() const { return adr_array_klasses(); }
154 oop* oop_block_end() const { return adr_methods_default_annotations() + 1; }
156 enum {
157 implementors_limit = 2 // how many implems can we track?
158 };
160 protected:
161 //
162 // The oop block. See comment in klass.hpp before making changes.
163 //
165 // Array classes holding elements of this class.
166 klassOop _array_klasses;
167 // Method array.
168 objArrayOop _methods;
169 // Int array containing the original order of method in the class file (for
170 // JVMTI).
171 typeArrayOop _method_ordering;
172 // Interface (klassOops) this class declares locally to implement.
173 objArrayOop _local_interfaces;
174 // Interface (klassOops) this class implements transitively.
175 objArrayOop _transitive_interfaces;
176 // Instance and static variable information, 5-tuples of shorts [access, name
177 // index, sig index, initval index, offset].
178 typeArrayOop _fields;
179 // Constant pool for this class.
180 constantPoolOop _constants;
181 // Class loader used to load this class, NULL if VM loader used.
182 oop _class_loader;
183 // Protection domain.
184 oop _protection_domain;
185 // Host class, which grants its access privileges to this class also.
186 // This is only non-null for an anonymous class (JSR 292 enabled).
187 // The host class is either named, or a previously loaded anonymous class.
188 klassOop _host_klass;
189 // Class signers.
190 objArrayOop _signers;
191 // The InnerClasses attribute and EnclosingMethod attribute. The
192 // _inner_classes is an array of shorts. If the class has InnerClasses
193 // attribute, then the _inner_classes array begins with 4-tuples of shorts
194 // [inner_class_info_index, outer_class_info_index,
195 // inner_name_index, inner_class_access_flags] for the InnerClasses
196 // attribute. If the EnclosingMethod attribute exists, it occupies the
197 // last two shorts [class_index, method_index] of the array. If only
198 // the InnerClasses attribute exists, the _inner_classes array length is
199 // number_of_inner_classes * 4. If the class has both InnerClasses
200 // and EnclosingMethod attributes the _inner_classes array length is
201 // number_of_inner_classes * 4 + enclosing_method_attribute_size.
202 typeArrayOop _inner_classes;
203 // Implementors of this interface (not valid if it overflows)
204 klassOop _implementors[implementors_limit];
205 // Annotations for this class, or null if none.
206 typeArrayOop _class_annotations;
207 // Annotation objects (byte arrays) for fields, or null if no annotations.
208 // Indices correspond to entries (not indices) in fields array.
209 objArrayOop _fields_annotations;
210 // Annotation objects (byte arrays) for methods, or null if no annotations.
211 // Index is the idnum, which is initially the same as the methods array index.
212 objArrayOop _methods_annotations;
213 // Annotation objects (byte arrays) for methods' parameters, or null if no
214 // such annotations.
215 // Index is the idnum, which is initially the same as the methods array index.
216 objArrayOop _methods_parameter_annotations;
217 // Annotation objects (byte arrays) for methods' default values, or null if no
218 // such annotations.
219 // Index is the idnum, which is initially the same as the methods array index.
220 objArrayOop _methods_default_annotations;
222 //
223 // End of the oop block.
224 //
226 // Name of source file containing this klass, NULL if not specified.
227 Symbol* _source_file_name;
228 // the source debug extension for this klass, NULL if not specified.
229 Symbol* _source_debug_extension;
230 // Generic signature, or null if none.
231 Symbol* _generic_signature;
232 // Array name derived from this class which needs unreferencing
233 // if this class is unloaded.
234 Symbol* _array_name;
236 // Number of heapOopSize words used by non-static fields in this klass
237 // (including inherited fields but after header_size()).
238 int _nonstatic_field_size;
239 int _static_field_size; // number words used by static fields (oop and non-oop) in this klass
240 u2 _static_oop_field_count;// number of static oop fields in this klass
241 u2 _java_fields_count; // The number of declared Java fields
242 int _nonstatic_oop_map_size;// size in words of nonstatic oop map blocks
244 bool _is_marked_dependent; // used for marking during flushing and deoptimization
245 bool _rewritten; // methods rewritten.
246 bool _has_nonstatic_fields; // for sizing with UseCompressedOops
247 bool _should_verify_class; // allow caching of preverification
248 u2 _minor_version; // minor version number of class file
249 u2 _major_version; // major version number of class file
250 Thread* _init_thread; // Pointer to current thread doing initialization (to handle recusive initialization)
251 int _vtable_len; // length of Java vtable (in words)
252 int _itable_len; // length of Java itable (in words)
253 OopMapCache* volatile _oop_map_cache; // OopMapCache for all methods in the klass (allocated lazily)
254 JNIid* _jni_ids; // First JNI identifier for static fields in this class
255 jmethodID* _methods_jmethod_ids; // jmethodIDs corresponding to method_idnum, or NULL if none
256 int* _methods_cached_itable_indices; // itable_index cache for JNI invoke corresponding to methods idnum, or NULL
257 nmethodBucket* _dependencies; // list of dependent nmethods
258 nmethod* _osr_nmethods_head; // Head of list of on-stack replacement nmethods for this class
259 BreakpointInfo* _breakpoints; // bpt lists, managed by methodOop
260 int _nof_implementors; // No of implementors of this interface (zero if not an interface)
261 // Array of interesting part(s) of the previous version(s) of this
262 // instanceKlass. See PreviousVersionWalker below.
263 GrowableArray<PreviousVersionNode *>* _previous_versions;
264 // JVMTI fields can be moved to their own structure - see 6315920
265 unsigned char * _cached_class_file_bytes; // JVMTI: cached class file, before retransformable agent modified it in CFLH
266 jint _cached_class_file_len; // JVMTI: length of above
267 JvmtiCachedClassFieldMap* _jvmti_cached_class_field_map; // JVMTI: used during heap iteration
268 volatile u2 _idnum_allocated_count; // JNI/JVMTI: increments with the addition of methods, old ids don't change
270 // Class states are defined as ClassState (see above).
271 // Place the _init_state here to utilize the unused 2-byte after
272 // _idnum_allocated_count.
273 u1 _init_state; // state of class
275 u1 _reference_type; // reference type
277 // embedded Java vtable follows here
278 // embedded Java itables follows here
279 // embedded static fields follows here
280 // embedded nonstatic oop-map blocks follows here
282 friend class instanceKlassKlass;
283 friend class SystemDictionary;
285 public:
286 bool has_nonstatic_fields() const { return _has_nonstatic_fields; }
287 void set_has_nonstatic_fields(bool b) { _has_nonstatic_fields = b; }
289 // field sizes
290 int nonstatic_field_size() const { return _nonstatic_field_size; }
291 void set_nonstatic_field_size(int size) { _nonstatic_field_size = size; }
293 int static_field_size() const { return _static_field_size; }
294 void set_static_field_size(int size) { _static_field_size = size; }
296 int static_oop_field_count() const { return (int)_static_oop_field_count; }
297 void set_static_oop_field_count(u2 size) { _static_oop_field_count = size; }
299 // Java vtable
300 int vtable_length() const { return _vtable_len; }
301 void set_vtable_length(int len) { _vtable_len = len; }
303 // Java itable
304 int itable_length() const { return _itable_len; }
305 void set_itable_length(int len) { _itable_len = len; }
307 // array klasses
308 klassOop array_klasses() const { return _array_klasses; }
309 void set_array_klasses(klassOop k) { oop_store_without_check((oop*) &_array_klasses, (oop) k); }
311 // methods
312 objArrayOop methods() const { return _methods; }
313 void set_methods(objArrayOop a) { oop_store_without_check((oop*) &_methods, (oop) a); }
314 methodOop method_with_idnum(int idnum);
316 // method ordering
317 typeArrayOop method_ordering() const { return _method_ordering; }
318 void set_method_ordering(typeArrayOop m) { oop_store_without_check((oop*) &_method_ordering, (oop) m); }
320 // interfaces
321 objArrayOop local_interfaces() const { return _local_interfaces; }
322 void set_local_interfaces(objArrayOop a) { oop_store_without_check((oop*) &_local_interfaces, (oop) a); }
323 objArrayOop transitive_interfaces() const { return _transitive_interfaces; }
324 void set_transitive_interfaces(objArrayOop a) { oop_store_without_check((oop*) &_transitive_interfaces, (oop) a); }
326 private:
327 friend class fieldDescriptor;
328 FieldInfo* field(int index) const { return FieldInfo::from_field_array(_fields, index); }
330 public:
331 int field_offset (int index) const { return field(index)->offset(); }
332 int field_access_flags(int index) const { return field(index)->access_flags(); }
333 Symbol* field_name (int index) const { return field(index)->name(constants()); }
334 Symbol* field_signature (int index) const { return field(index)->signature(constants()); }
336 // Number of Java declared fields
337 int java_fields_count() const { return (int)_java_fields_count; }
339 // Number of fields including any injected fields
340 int all_fields_count() const { return _fields->length() / FieldInfo::field_slots; }
342 typeArrayOop fields() const { return _fields; }
344 void set_fields(typeArrayOop f, u2 java_fields_count) {
345 oop_store_without_check((oop*) &_fields, (oop) f);
346 _java_fields_count = java_fields_count;
347 }
349 // inner classes
350 typeArrayOop inner_classes() const { return _inner_classes; }
351 void set_inner_classes(typeArrayOop f) { oop_store_without_check((oop*) &_inner_classes, (oop) f); }
353 enum InnerClassAttributeOffset {
354 // From http://mirror.eng/products/jdk/1.1/docs/guide/innerclasses/spec/innerclasses.doc10.html#18814
355 inner_class_inner_class_info_offset = 0,
356 inner_class_outer_class_info_offset = 1,
357 inner_class_inner_name_offset = 2,
358 inner_class_access_flags_offset = 3,
359 inner_class_next_offset = 4
360 };
362 enum EnclosingMethodAttributeOffset {
363 enclosing_method_class_index_offset = 0,
364 enclosing_method_method_index_offset = 1,
365 enclosing_method_attribute_size = 2
366 };
368 // method override check
369 bool is_override(methodHandle super_method, Handle targetclassloader, Symbol* targetclassname, TRAPS);
371 // package
372 bool is_same_class_package(klassOop class2);
373 bool is_same_class_package(oop classloader2, Symbol* classname2);
374 static bool is_same_class_package(oop class_loader1, Symbol* class_name1, oop class_loader2, Symbol* class_name2);
376 // find an enclosing class (defined where original code was, in jvm.cpp!)
377 klassOop compute_enclosing_class(bool* inner_is_member, TRAPS) {
378 instanceKlassHandle self(THREAD, this->as_klassOop());
379 return compute_enclosing_class_impl(self, inner_is_member, THREAD);
380 }
381 static klassOop compute_enclosing_class_impl(instanceKlassHandle self,
382 bool* inner_is_member, TRAPS);
384 // tell if two classes have the same enclosing class (at package level)
385 bool is_same_package_member(klassOop class2, TRAPS) {
386 instanceKlassHandle self(THREAD, this->as_klassOop());
387 return is_same_package_member_impl(self, class2, THREAD);
388 }
389 static bool is_same_package_member_impl(instanceKlassHandle self,
390 klassOop class2, TRAPS);
392 // initialization state
393 bool is_loaded() const { return _init_state >= loaded; }
394 bool is_linked() const { return _init_state >= linked; }
395 bool is_initialized() const { return _init_state == fully_initialized; }
396 bool is_not_initialized() const { return _init_state < being_initialized; }
397 bool is_being_initialized() const { return _init_state == being_initialized; }
398 bool is_in_error_state() const { return _init_state == initialization_error; }
399 bool is_reentrant_initialization(Thread *thread) { return thread == _init_thread; }
400 ClassState init_state() { return (ClassState)_init_state; }
401 bool is_rewritten() const { return _rewritten; }
403 // defineClass specified verification
404 bool should_verify_class() const { return _should_verify_class; }
405 void set_should_verify_class(bool value) { _should_verify_class = value; }
407 // marking
408 bool is_marked_dependent() const { return _is_marked_dependent; }
409 void set_is_marked_dependent(bool value) { _is_marked_dependent = value; }
411 // initialization (virtuals from Klass)
412 bool should_be_initialized() const; // means that initialize should be called
413 void initialize(TRAPS);
414 void link_class(TRAPS);
415 bool link_class_or_fail(TRAPS); // returns false on failure
416 void unlink_class();
417 void rewrite_class(TRAPS);
418 void relocate_and_link_methods(TRAPS);
419 methodOop class_initializer();
421 // set the class to initialized if no static initializer is present
422 void eager_initialize(Thread *thread);
424 // reference type
425 ReferenceType reference_type() const { return (ReferenceType)_reference_type; }
426 void set_reference_type(ReferenceType t) {
427 assert(t == (u1)t, "overflow");
428 _reference_type = (u1)t;
429 }
431 static ByteSize reference_type_offset() { return in_ByteSize(sizeof(klassOopDesc) + offset_of(instanceKlass, _reference_type)); }
433 // find local field, returns true if found
434 bool find_local_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const;
435 // find field in direct superinterfaces, returns the interface in which the field is defined
436 klassOop find_interface_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const;
437 // find field according to JVM spec 5.4.3.2, returns the klass in which the field is defined
438 klassOop find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const;
439 // find instance or static fields according to JVM spec 5.4.3.2, returns the klass in which the field is defined
440 klassOop find_field(Symbol* name, Symbol* sig, bool is_static, fieldDescriptor* fd) const;
442 // find a non-static or static field given its offset within the class.
443 bool contains_field_offset(int offset) {
444 return instanceOopDesc::contains_field_offset(offset, nonstatic_field_size());
445 }
447 bool find_local_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const;
448 bool find_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const;
450 // find a local method (returns NULL if not found)
451 methodOop find_method(Symbol* name, Symbol* signature) const;
452 static methodOop find_method(objArrayOop methods, Symbol* name, Symbol* signature);
454 // lookup operation (returns NULL if not found)
455 methodOop uncached_lookup_method(Symbol* name, Symbol* signature) const;
457 // lookup a method in all the interfaces that this class implements
458 // (returns NULL if not found)
459 methodOop lookup_method_in_all_interfaces(Symbol* name, Symbol* signature) const;
461 // constant pool
462 constantPoolOop constants() const { return _constants; }
463 void set_constants(constantPoolOop c) { oop_store_without_check((oop*) &_constants, (oop) c); }
465 // class loader
466 oop class_loader() const { return _class_loader; }
467 void set_class_loader(oop l) { oop_store((oop*) &_class_loader, l); }
469 // protection domain
470 oop protection_domain() { return _protection_domain; }
471 void set_protection_domain(oop pd) { oop_store((oop*) &_protection_domain, pd); }
473 // host class
474 oop host_klass() const { return _host_klass; }
475 void set_host_klass(oop host) { oop_store((oop*) &_host_klass, host); }
476 bool is_anonymous() const { return _host_klass != NULL; }
478 // signers
479 objArrayOop signers() const { return _signers; }
480 void set_signers(objArrayOop s) { oop_store((oop*) &_signers, oop(s)); }
482 // source file name
483 Symbol* source_file_name() const { return _source_file_name; }
484 void set_source_file_name(Symbol* n);
486 // minor and major version numbers of class file
487 u2 minor_version() const { return _minor_version; }
488 void set_minor_version(u2 minor_version) { _minor_version = minor_version; }
489 u2 major_version() const { return _major_version; }
490 void set_major_version(u2 major_version) { _major_version = major_version; }
492 // source debug extension
493 Symbol* source_debug_extension() const { return _source_debug_extension; }
494 void set_source_debug_extension(Symbol* n);
496 // symbol unloading support (refcount already added)
497 Symbol* array_name() { return _array_name; }
498 void set_array_name(Symbol* name) { assert(_array_name == NULL, "name already created"); _array_name = name; }
500 // nonstatic oop-map blocks
501 static int nonstatic_oop_map_size(unsigned int oop_map_count) {
502 return oop_map_count * OopMapBlock::size_in_words();
503 }
504 unsigned int nonstatic_oop_map_count() const {
505 return _nonstatic_oop_map_size / OopMapBlock::size_in_words();
506 }
507 int nonstatic_oop_map_size() const { return _nonstatic_oop_map_size; }
508 void set_nonstatic_oop_map_size(int words) {
509 _nonstatic_oop_map_size = words;
510 }
512 // RedefineClasses() support for previous versions:
513 void add_previous_version(instanceKlassHandle ikh, BitMap *emcp_methods,
514 int emcp_method_count);
515 // If the _previous_versions array is non-NULL, then this klass
516 // has been redefined at least once even if we aren't currently
517 // tracking a previous version.
518 bool has_been_redefined() const { return _previous_versions != NULL; }
519 bool has_previous_version() const;
520 void init_previous_versions() {
521 _previous_versions = NULL;
522 }
523 GrowableArray<PreviousVersionNode *>* previous_versions() const {
524 return _previous_versions;
525 }
527 // JVMTI: Support for caching a class file before it is modified by an agent that can do retransformation
528 void set_cached_class_file(unsigned char *class_file_bytes,
529 jint class_file_len) { _cached_class_file_len = class_file_len;
530 _cached_class_file_bytes = class_file_bytes; }
531 jint get_cached_class_file_len() { return _cached_class_file_len; }
532 unsigned char * get_cached_class_file_bytes() { return _cached_class_file_bytes; }
534 // JVMTI: Support for caching of field indices, types, and offsets
535 void set_jvmti_cached_class_field_map(JvmtiCachedClassFieldMap* descriptor) {
536 _jvmti_cached_class_field_map = descriptor;
537 }
538 JvmtiCachedClassFieldMap* jvmti_cached_class_field_map() const {
539 return _jvmti_cached_class_field_map;
540 }
542 // for adding methods, constMethodOopDesc::UNSET_IDNUM means no more ids available
543 inline u2 next_method_idnum();
544 void set_initial_method_idnum(u2 value) { _idnum_allocated_count = value; }
546 // generics support
547 Symbol* generic_signature() const { return _generic_signature; }
548 void set_generic_signature(Symbol* sig) { _generic_signature = sig; }
550 u2 enclosing_method_data(int offset);
551 u2 enclosing_method_class_index() {
552 return enclosing_method_data(enclosing_method_class_index_offset);
553 }
554 u2 enclosing_method_method_index() {
555 return enclosing_method_data(enclosing_method_method_index_offset);
556 }
557 void set_enclosing_method_indices(u2 class_index,
558 u2 method_index);
560 // jmethodID support
561 static jmethodID get_jmethod_id(instanceKlassHandle ik_h,
562 methodHandle method_h);
563 static jmethodID get_jmethod_id_fetch_or_update(instanceKlassHandle ik_h,
564 size_t idnum, jmethodID new_id, jmethodID* new_jmeths,
565 jmethodID* to_dealloc_id_p,
566 jmethodID** to_dealloc_jmeths_p);
567 static void get_jmethod_id_length_value(jmethodID* cache, size_t idnum,
568 size_t *length_p, jmethodID* id_p);
569 jmethodID jmethod_id_or_null(methodOop method);
571 // cached itable index support
572 void set_cached_itable_index(size_t idnum, int index);
573 int cached_itable_index(size_t idnum);
575 // annotations support
576 typeArrayOop class_annotations() const { return _class_annotations; }
577 objArrayOop fields_annotations() const { return _fields_annotations; }
578 objArrayOop methods_annotations() const { return _methods_annotations; }
579 objArrayOop methods_parameter_annotations() const { return _methods_parameter_annotations; }
580 objArrayOop methods_default_annotations() const { return _methods_default_annotations; }
581 void set_class_annotations(typeArrayOop md) { oop_store_without_check((oop*)&_class_annotations, (oop)md); }
582 void set_fields_annotations(objArrayOop md) { set_annotations(md, &_fields_annotations); }
583 void set_methods_annotations(objArrayOop md) { set_annotations(md, &_methods_annotations); }
584 void set_methods_parameter_annotations(objArrayOop md) { set_annotations(md, &_methods_parameter_annotations); }
585 void set_methods_default_annotations(objArrayOop md) { set_annotations(md, &_methods_default_annotations); }
586 typeArrayOop get_method_annotations_of(int idnum)
587 { return get_method_annotations_from(idnum, _methods_annotations); }
588 typeArrayOop get_method_parameter_annotations_of(int idnum)
589 { return get_method_annotations_from(idnum, _methods_parameter_annotations); }
590 typeArrayOop get_method_default_annotations_of(int idnum)
591 { return get_method_annotations_from(idnum, _methods_default_annotations); }
592 void set_method_annotations_of(int idnum, typeArrayOop anno)
593 { set_methods_annotations_of(idnum, anno, &_methods_annotations); }
594 void set_method_parameter_annotations_of(int idnum, typeArrayOop anno)
595 { set_methods_annotations_of(idnum, anno, &_methods_parameter_annotations); }
596 void set_method_default_annotations_of(int idnum, typeArrayOop anno)
597 { set_methods_annotations_of(idnum, anno, &_methods_default_annotations); }
599 // allocation
600 DEFINE_ALLOCATE_PERMANENT(instanceKlass);
601 instanceOop allocate_instance(TRAPS);
602 instanceOop allocate_permanent_instance(TRAPS);
604 // additional member function to return a handle
605 instanceHandle allocate_instance_handle(TRAPS) { return instanceHandle(THREAD, allocate_instance(THREAD)); }
607 objArrayOop allocate_objArray(int n, int length, TRAPS);
608 // Helper function
609 static instanceOop register_finalizer(instanceOop i, TRAPS);
611 // Check whether reflection/jni/jvm code is allowed to instantiate this class;
612 // if not, throw either an Error or an Exception.
613 virtual void check_valid_for_instantiation(bool throwError, TRAPS);
615 // initialization
616 void call_class_initializer(TRAPS);
617 void set_initialization_state_and_notify(ClassState state, TRAPS);
619 // OopMapCache support
620 OopMapCache* oop_map_cache() { return _oop_map_cache; }
621 void set_oop_map_cache(OopMapCache *cache) { _oop_map_cache = cache; }
622 void mask_for(methodHandle method, int bci, InterpreterOopMap* entry);
624 // JNI identifier support (for static fields - for jni performance)
625 JNIid* jni_ids() { return _jni_ids; }
626 void set_jni_ids(JNIid* ids) { _jni_ids = ids; }
627 JNIid* jni_id_for(int offset);
629 // maintenance of deoptimization dependencies
630 int mark_dependent_nmethods(DepChange& changes);
631 void add_dependent_nmethod(nmethod* nm);
632 void remove_dependent_nmethod(nmethod* nm);
634 // On-stack replacement support
635 nmethod* osr_nmethods_head() const { return _osr_nmethods_head; };
636 void set_osr_nmethods_head(nmethod* h) { _osr_nmethods_head = h; };
637 void add_osr_nmethod(nmethod* n);
638 void remove_osr_nmethod(nmethod* n);
639 nmethod* lookup_osr_nmethod(const methodOop m, int bci, int level, bool match_level) const;
641 // Breakpoint support (see methods on methodOop for details)
642 BreakpointInfo* breakpoints() const { return _breakpoints; };
643 void set_breakpoints(BreakpointInfo* bps) { _breakpoints = bps; };
645 // support for stub routines
646 static ByteSize init_state_offset() { return in_ByteSize(sizeof(klassOopDesc) + offset_of(instanceKlass, _init_state)); }
647 static ByteSize init_thread_offset() { return in_ByteSize(sizeof(klassOopDesc) + offset_of(instanceKlass, _init_thread)); }
649 // subclass/subinterface checks
650 bool implements_interface(klassOop k) const;
652 // Access to implementors of an interface. We only store the count
653 // of implementors, and in case, there are only a few
654 // implementors, we store them in a short list.
655 // This accessor returns NULL if we walk off the end of the list.
656 klassOop implementor(int i) const {
657 return (i < implementors_limit)? _implementors[i]: (klassOop) NULL;
658 }
659 int nof_implementors() const { return _nof_implementors; }
660 void add_implementor(klassOop k); // k is a new class that implements this interface
661 void init_implementor(); // initialize
663 // link this class into the implementors list of every interface it implements
664 void process_interfaces(Thread *thread);
666 // virtual operations from Klass
667 bool is_leaf_class() const { return _subklass == NULL; }
668 objArrayOop compute_secondary_supers(int num_extra_slots, TRAPS);
669 bool compute_is_subtype_of(klassOop k);
670 bool can_be_primary_super_slow() const;
671 klassOop java_super() const { return super(); }
672 int oop_size(oop obj) const { return size_helper(); }
673 int klass_oop_size() const { return object_size(); }
674 bool oop_is_instance_slow() const { return true; }
676 // Iterators
677 void do_local_static_fields(FieldClosure* cl);
678 void do_nonstatic_fields(FieldClosure* cl); // including inherited fields
679 void do_local_static_fields(void f(fieldDescriptor*, TRAPS), TRAPS);
681 void methods_do(void f(methodOop method));
682 void array_klasses_do(void f(klassOop k));
683 void with_array_klasses_do(void f(klassOop k));
684 bool super_types_do(SuperTypeClosure* blk);
686 // Casting from klassOop
687 static instanceKlass* cast(klassOop k) {
688 assert(k->is_klass(), "must be");
689 Klass* kp = k->klass_part();
690 assert(kp->null_vtbl() || kp->oop_is_instance_slow(), "cast to instanceKlass");
691 return (instanceKlass*) kp;
692 }
694 // Sizing (in words)
695 static int header_size() { return align_object_offset(oopDesc::header_size() + sizeof(instanceKlass)/HeapWordSize); }
696 int object_size() const { return object_size(align_object_offset(vtable_length()) + align_object_offset(itable_length()) + nonstatic_oop_map_size()); }
697 static int vtable_start_offset() { return header_size(); }
698 static int vtable_length_offset() { return oopDesc::header_size() + offset_of(instanceKlass, _vtable_len) / HeapWordSize; }
699 static int object_size(int extra) { return align_object_size(header_size() + extra); }
701 intptr_t* start_of_vtable() const { return ((intptr_t*)as_klassOop()) + vtable_start_offset(); }
702 intptr_t* start_of_itable() const { return start_of_vtable() + align_object_offset(vtable_length()); }
703 int itable_offset_in_words() const { return start_of_itable() - (intptr_t*)as_klassOop(); }
705 intptr_t* end_of_itable() const { return start_of_itable() + itable_length(); }
707 address static_field_addr(int offset);
709 OopMapBlock* start_of_nonstatic_oop_maps() const {
710 return (OopMapBlock*)(start_of_itable() + align_object_offset(itable_length()));
711 }
713 // Allocation profiling support
714 juint alloc_size() const { return _alloc_count * size_helper(); }
715 void set_alloc_size(juint n) {}
717 // Use this to return the size of an instance in heap words:
718 int size_helper() const {
719 return layout_helper_to_size_helper(layout_helper());
720 }
722 // This bit is initialized in classFileParser.cpp.
723 // It is false under any of the following conditions:
724 // - the class is abstract (including any interface)
725 // - the class has a finalizer (if !RegisterFinalizersAtInit)
726 // - the class size is larger than FastAllocateSizeLimit
727 // - the class is java/lang/Class, which cannot be allocated directly
728 bool can_be_fastpath_allocated() const {
729 return !layout_helper_needs_slow_path(layout_helper());
730 }
732 // Java vtable/itable
733 klassVtable* vtable() const; // return new klassVtable wrapper
734 inline methodOop method_at_vtable(int index);
735 klassItable* itable() const; // return new klassItable wrapper
736 methodOop method_at_itable(klassOop holder, int index, TRAPS);
738 // Garbage collection
739 void oop_follow_contents(oop obj);
740 int oop_adjust_pointers(oop obj);
741 bool object_is_parsable() const { return _init_state != unparsable_by_gc; }
742 // Value of _init_state must be zero (unparsable_by_gc) when klass field is set.
744 void follow_weak_klass_links(
745 BoolObjectClosure* is_alive, OopClosure* keep_alive);
746 void release_C_heap_structures();
748 // Parallel Scavenge and Parallel Old
749 PARALLEL_GC_DECLS
751 // Naming
752 const char* signature_name() const;
754 // Iterators
755 int oop_oop_iterate(oop obj, OopClosure* blk) {
756 return oop_oop_iterate_v(obj, blk);
757 }
759 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {
760 return oop_oop_iterate_v_m(obj, blk, mr);
761 }
763 #define InstanceKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \
764 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \
765 int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, \
766 MemRegion mr);
768 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_DECL)
769 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_DECL)
771 #ifndef SERIALGC
772 #define InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL(OopClosureType, nv_suffix) \
773 int oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* blk);
775 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL)
776 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL)
777 #endif // !SERIALGC
779 private:
780 // initialization state
781 #ifdef ASSERT
782 void set_init_state(ClassState state);
783 #else
784 void set_init_state(ClassState state) { _init_state = (u1)state; }
785 #endif
786 void set_rewritten() { _rewritten = true; }
787 void set_init_thread(Thread *thread) { _init_thread = thread; }
789 u2 idnum_allocated_count() const { return _idnum_allocated_count; }
790 // The RedefineClasses() API can cause new method idnums to be needed
791 // which will cause the caches to grow. Safety requires different
792 // cache management logic if the caches can grow instead of just
793 // going from NULL to non-NULL.
794 bool idnum_can_increment() const { return has_been_redefined(); }
795 jmethodID* methods_jmethod_ids_acquire() const
796 { return (jmethodID*)OrderAccess::load_ptr_acquire(&_methods_jmethod_ids); }
797 void release_set_methods_jmethod_ids(jmethodID* jmeths)
798 { OrderAccess::release_store_ptr(&_methods_jmethod_ids, jmeths); }
800 int* methods_cached_itable_indices_acquire() const
801 { return (int*)OrderAccess::load_ptr_acquire(&_methods_cached_itable_indices); }
802 void release_set_methods_cached_itable_indices(int* indices)
803 { OrderAccess::release_store_ptr(&_methods_cached_itable_indices, indices); }
805 inline typeArrayOop get_method_annotations_from(int idnum, objArrayOop annos);
806 void set_annotations(objArrayOop md, objArrayOop* md_p) { oop_store_without_check((oop*)md_p, (oop)md); }
807 void set_methods_annotations_of(int idnum, typeArrayOop anno, objArrayOop* md_p);
809 // Offsets for memory management
810 oop* adr_array_klasses() const { return (oop*)&this->_array_klasses;}
811 oop* adr_methods() const { return (oop*)&this->_methods;}
812 oop* adr_method_ordering() const { return (oop*)&this->_method_ordering;}
813 oop* adr_local_interfaces() const { return (oop*)&this->_local_interfaces;}
814 oop* adr_transitive_interfaces() const { return (oop*)&this->_transitive_interfaces;}
815 oop* adr_fields() const { return (oop*)&this->_fields;}
816 oop* adr_constants() const { return (oop*)&this->_constants;}
817 oop* adr_class_loader() const { return (oop*)&this->_class_loader;}
818 oop* adr_protection_domain() const { return (oop*)&this->_protection_domain;}
819 oop* adr_host_klass() const { return (oop*)&this->_host_klass;}
820 oop* adr_signers() const { return (oop*)&this->_signers;}
821 oop* adr_inner_classes() const { return (oop*)&this->_inner_classes;}
822 oop* adr_implementors() const { return (oop*)&this->_implementors[0];}
823 oop* adr_methods_jmethod_ids() const { return (oop*)&this->_methods_jmethod_ids;}
824 oop* adr_methods_cached_itable_indices() const { return (oop*)&this->_methods_cached_itable_indices;}
825 oop* adr_class_annotations() const { return (oop*)&this->_class_annotations;}
826 oop* adr_fields_annotations() const { return (oop*)&this->_fields_annotations;}
827 oop* adr_methods_annotations() const { return (oop*)&this->_methods_annotations;}
828 oop* adr_methods_parameter_annotations() const { return (oop*)&this->_methods_parameter_annotations;}
829 oop* adr_methods_default_annotations() const { return (oop*)&this->_methods_default_annotations;}
831 // Static methods that are used to implement member methods where an exposed this pointer
832 // is needed due to possible GCs
833 static bool link_class_impl (instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS);
834 static bool verify_code (instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS);
835 static void initialize_impl (instanceKlassHandle this_oop, TRAPS);
836 static void eager_initialize_impl (instanceKlassHandle this_oop);
837 static void set_initialization_state_and_notify_impl (instanceKlassHandle this_oop, ClassState state, TRAPS);
838 static void call_class_initializer_impl (instanceKlassHandle this_oop, TRAPS);
839 static klassOop array_klass_impl (instanceKlassHandle this_oop, bool or_null, int n, TRAPS);
840 static void do_local_static_fields_impl (instanceKlassHandle this_oop, void f(fieldDescriptor* fd, TRAPS), TRAPS);
841 /* jni_id_for_impl for jfieldID only */
842 static JNIid* jni_id_for_impl (instanceKlassHandle this_oop, int offset);
844 // Returns the array class for the n'th dimension
845 klassOop array_klass_impl(bool or_null, int n, TRAPS);
847 // Returns the array class with this class as element type
848 klassOop array_klass_impl(bool or_null, TRAPS);
850 public:
851 // sharing support
852 virtual void remove_unshareable_info();
853 virtual void shared_symbols_iterate(SymbolClosure* closure);
855 // jvm support
856 jint compute_modifier_flags(TRAPS) const;
858 public:
859 // JVMTI support
860 jint jvmti_class_status() const;
862 public:
863 // Printing
864 void oop_print_value_on(oop obj, outputStream* st);
865 #ifndef PRODUCT
866 void oop_print_on (oop obj, outputStream* st);
868 void print_dependent_nmethods(bool verbose = false);
869 bool is_dependent_nmethod(nmethod* nm);
870 #endif
872 // Verification
873 const char* internal_name() const;
874 void oop_verify_on(oop obj, outputStream* st);
875 };
877 inline methodOop instanceKlass::method_at_vtable(int index) {
878 #ifndef PRODUCT
879 assert(index >= 0, "valid vtable index");
880 if (DebugVtables) {
881 verify_vtable_index(index);
882 }
883 #endif
884 vtableEntry* ve = (vtableEntry*)start_of_vtable();
885 return ve[index].method();
886 }
888 inline typeArrayOop instanceKlass::get_method_annotations_from(int idnum, objArrayOop annos) {
889 if (annos == NULL || annos->length() <= idnum) {
890 return NULL;
891 }
892 return typeArrayOop(annos->obj_at(idnum));
893 }
895 // for adding methods
896 // UNSET_IDNUM return means no more ids available
897 inline u2 instanceKlass::next_method_idnum() {
898 if (_idnum_allocated_count == constMethodOopDesc::MAX_IDNUM) {
899 return constMethodOopDesc::UNSET_IDNUM; // no more ids available
900 } else {
901 return _idnum_allocated_count++;
902 }
903 }
906 /* JNIid class for jfieldIDs only */
907 class JNIid: public CHeapObj {
908 friend class VMStructs;
909 private:
910 klassOop _holder;
911 JNIid* _next;
912 int _offset;
913 #ifdef ASSERT
914 bool _is_static_field_id;
915 #endif
917 public:
918 // Accessors
919 klassOop holder() const { return _holder; }
920 int offset() const { return _offset; }
921 JNIid* next() { return _next; }
922 // Constructor
923 JNIid(klassOop holder, int offset, JNIid* next);
924 // Identifier lookup
925 JNIid* find(int offset);
927 bool find_local_field(fieldDescriptor* fd) {
928 return instanceKlass::cast(holder())->find_local_field_from_offset(offset(), true, fd);
929 }
931 // Garbage collection support
932 oop* holder_addr() { return (oop*)&_holder; }
933 void oops_do(OopClosure* f);
934 static void deallocate(JNIid* id);
935 // Debugging
936 #ifdef ASSERT
937 bool is_static_field_id() const { return _is_static_field_id; }
938 void set_is_static_field_id() { _is_static_field_id = true; }
939 #endif
940 void verify(klassOop holder);
941 };
944 // If breakpoints are more numerous than just JVMTI breakpoints,
945 // consider compressing this data structure.
946 // It is currently a simple linked list defined in methodOop.hpp.
948 class BreakpointInfo;
951 // A collection point for interesting information about the previous
952 // version(s) of an instanceKlass. This class uses weak references to
953 // the information so that the information may be collected as needed
954 // by the system. If the information is shared, then a regular
955 // reference must be used because a weak reference would be seen as
956 // collectible. A GrowableArray of PreviousVersionNodes is attached
957 // to the instanceKlass as needed. See PreviousVersionWalker below.
958 class PreviousVersionNode : public CHeapObj {
959 private:
960 // A shared ConstantPool is never collected so we'll always have
961 // a reference to it so we can update items in the cache. We'll
962 // have a weak reference to a non-shared ConstantPool until all
963 // of the methods (EMCP or obsolete) have been collected; the
964 // non-shared ConstantPool becomes collectible at that point.
965 jobject _prev_constant_pool; // regular or weak reference
966 bool _prev_cp_is_weak; // true if not a shared ConstantPool
968 // If the previous version of the instanceKlass doesn't have any
969 // EMCP methods, then _prev_EMCP_methods will be NULL. If all the
970 // EMCP methods have been collected, then _prev_EMCP_methods can
971 // have a length of zero.
972 GrowableArray<jweak>* _prev_EMCP_methods;
974 public:
975 PreviousVersionNode(jobject prev_constant_pool, bool prev_cp_is_weak,
976 GrowableArray<jweak>* prev_EMCP_methods);
977 ~PreviousVersionNode();
978 jobject prev_constant_pool() const {
979 return _prev_constant_pool;
980 }
981 GrowableArray<jweak>* prev_EMCP_methods() const {
982 return _prev_EMCP_methods;
983 }
984 };
987 // A Handle-ized version of PreviousVersionNode.
988 class PreviousVersionInfo : public ResourceObj {
989 private:
990 constantPoolHandle _prev_constant_pool_handle;
991 // If the previous version of the instanceKlass doesn't have any
992 // EMCP methods, then _prev_EMCP_methods will be NULL. Since the
993 // methods cannot be collected while we hold a handle,
994 // _prev_EMCP_methods should never have a length of zero.
995 GrowableArray<methodHandle>* _prev_EMCP_method_handles;
997 public:
998 PreviousVersionInfo(PreviousVersionNode *pv_node);
999 ~PreviousVersionInfo();
1000 constantPoolHandle prev_constant_pool_handle() const {
1001 return _prev_constant_pool_handle;
1002 }
1003 GrowableArray<methodHandle>* prev_EMCP_method_handles() const {
1004 return _prev_EMCP_method_handles;
1005 }
1006 };
1009 // Helper object for walking previous versions. This helper cleans up
1010 // the Handles that it allocates when the helper object is destroyed.
1011 // The PreviousVersionInfo object returned by next_previous_version()
1012 // is only valid until a subsequent call to next_previous_version() or
1013 // the helper object is destroyed.
1014 class PreviousVersionWalker : public StackObj {
1015 private:
1016 GrowableArray<PreviousVersionNode *>* _previous_versions;
1017 int _current_index;
1018 // Fields for cleaning up when we are done walking the previous versions:
1019 // A HandleMark for the PreviousVersionInfo handles:
1020 HandleMark _hm;
1022 // It would be nice to have a ResourceMark field in this helper also,
1023 // but the ResourceMark code says to be careful to delete handles held
1024 // in GrowableArrays _before_ deleting the GrowableArray. Since we
1025 // can't guarantee the order in which the fields are destroyed, we
1026 // have to let the creator of the PreviousVersionWalker object do
1027 // the right thing. Also, adding a ResourceMark here causes an
1028 // include loop.
1030 // A pointer to the current info object so we can handle the deletes.
1031 PreviousVersionInfo * _current_p;
1033 public:
1034 PreviousVersionWalker(instanceKlass *ik);
1035 ~PreviousVersionWalker();
1037 // Return the interesting information for the next previous version
1038 // of the klass. Returns NULL if there are no more previous versions.
1039 PreviousVersionInfo* next_previous_version();
1040 };
1043 //
1044 // nmethodBucket is used to record dependent nmethods for
1045 // deoptimization. nmethod dependencies are actually <klass, method>
1046 // pairs but we really only care about the klass part for purposes of
1047 // finding nmethods which might need to be deoptimized. Instead of
1048 // recording the method, a count of how many times a particular nmethod
1049 // was recorded is kept. This ensures that any recording errors are
1050 // noticed since an nmethod should be removed as many times are it's
1051 // added.
1052 //
1053 class nmethodBucket: public CHeapObj {
1054 friend class VMStructs;
1055 private:
1056 nmethod* _nmethod;
1057 int _count;
1058 nmethodBucket* _next;
1060 public:
1061 nmethodBucket(nmethod* nmethod, nmethodBucket* next) {
1062 _nmethod = nmethod;
1063 _next = next;
1064 _count = 1;
1065 }
1066 int count() { return _count; }
1067 int increment() { _count += 1; return _count; }
1068 int decrement() { _count -= 1; assert(_count >= 0, "don't underflow"); return _count; }
1069 nmethodBucket* next() { return _next; }
1070 void set_next(nmethodBucket* b) { _next = b; }
1071 nmethod* get_nmethod() { return _nmethod; }
1072 };
1074 // An iterator that's used to access the inner classes indices in the
1075 // instanceKlass::_inner_classes array.
1076 class InnerClassesIterator : public StackObj {
1077 private:
1078 typeArrayHandle _inner_classes;
1079 int _length;
1080 int _idx;
1081 public:
1083 InnerClassesIterator(instanceKlassHandle k) {
1084 _inner_classes = k->inner_classes();
1085 if (k->inner_classes() != NULL) {
1086 _length = _inner_classes->length();
1087 // The inner class array's length should be the multiple of
1088 // inner_class_next_offset if it only contains the InnerClasses
1089 // attribute data, or it should be
1090 // n*inner_class_next_offset+enclosing_method_attribute_size
1091 // if it also contains the EnclosingMethod data.
1092 assert((_length % instanceKlass::inner_class_next_offset == 0 ||
1093 _length % instanceKlass::inner_class_next_offset == instanceKlass::enclosing_method_attribute_size),
1094 "just checking");
1095 // Remove the enclosing_method portion if exists.
1096 if (_length % instanceKlass::inner_class_next_offset == instanceKlass::enclosing_method_attribute_size) {
1097 _length -= instanceKlass::enclosing_method_attribute_size;
1098 }
1099 } else {
1100 _length = 0;
1101 }
1102 _idx = 0;
1103 }
1105 int length() const {
1106 return _length;
1107 }
1109 void next() {
1110 _idx += instanceKlass::inner_class_next_offset;
1111 }
1113 bool done() const {
1114 return (_idx >= _length);
1115 }
1117 u2 inner_class_info_index() const {
1118 return _inner_classes->ushort_at(
1119 _idx + instanceKlass::inner_class_inner_class_info_offset);
1120 }
1122 void set_inner_class_info_index(u2 index) {
1123 _inner_classes->ushort_at_put(
1124 _idx + instanceKlass::inner_class_inner_class_info_offset, index);
1125 }
1127 u2 outer_class_info_index() const {
1128 return _inner_classes->ushort_at(
1129 _idx + instanceKlass::inner_class_outer_class_info_offset);
1130 }
1132 void set_outer_class_info_index(u2 index) {
1133 _inner_classes->ushort_at_put(
1134 _idx + instanceKlass::inner_class_outer_class_info_offset, index);
1135 }
1137 u2 inner_name_index() const {
1138 return _inner_classes->ushort_at(
1139 _idx + instanceKlass::inner_class_inner_name_offset);
1140 }
1142 void set_inner_name_index(u2 index) {
1143 _inner_classes->ushort_at_put(
1144 _idx + instanceKlass::inner_class_inner_name_offset, index);
1145 }
1147 u2 inner_access_flags() const {
1148 return _inner_classes->ushort_at(
1149 _idx + instanceKlass::inner_class_access_flags_offset);
1150 }
1151 };
1153 #endif // SHARE_VM_OOPS_INSTANCEKLASS_HPP