Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/interpreter/linkResolver.cpp@cd5dbf694d45
src/share/vm/interpreter/linkResolver.cpp
Sat, 01 May 2010 02:42:18 -0700
- author
- jrose
- date
- Sat, 01 May 2010 02:42:18 -0700
- changeset 1862
- cd5dbf694d45
- parent 1577
- 4ce7240d622c
- child 1863
- 2ffde6cfe049
- permissions
- -rw-r--r--
6939134: JSR 292 adjustments to method handle invocation
Summary: split MethodHandle.invoke into invokeExact and invokeGeneric; also clean up JVM-to-Java interfaces
Reviewed-by: twisti
1 /*
2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
25 #include "incls/_precompiled.incl"
26 #include "incls/_linkResolver.cpp.incl"
28 //------------------------------------------------------------------------------------------------------------------------
29 // Implementation of FieldAccessInfo
31 void FieldAccessInfo::set(KlassHandle klass, symbolHandle name, int field_index, int field_offset,
32 BasicType field_type, AccessFlags access_flags) {
33 _klass = klass;
34 _name = name;
35 _field_index = field_index;
36 _field_offset = field_offset;
37 _field_type = field_type;
38 _access_flags = access_flags;
39 }
42 //------------------------------------------------------------------------------------------------------------------------
43 // Implementation of CallInfo
46 void CallInfo::set_static(KlassHandle resolved_klass, methodHandle resolved_method, TRAPS) {
47 int vtable_index = methodOopDesc::nonvirtual_vtable_index;
48 set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, vtable_index, CHECK);
49 }
52 void CallInfo::set_interface(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, TRAPS) {
53 // This is only called for interface methods. If the resolved_method
54 // comes from java/lang/Object, it can be the subject of a virtual call, so
55 // we should pick the vtable index from the resolved method.
56 // Other than that case, there is no valid vtable index to specify.
57 int vtable_index = methodOopDesc::invalid_vtable_index;
58 if (resolved_method->method_holder() == SystemDictionary::Object_klass()) {
59 assert(resolved_method->vtable_index() == selected_method->vtable_index(), "sanity check");
60 vtable_index = resolved_method->vtable_index();
61 }
62 set_common(resolved_klass, selected_klass, resolved_method, selected_method, vtable_index, CHECK);
63 }
65 void CallInfo::set_virtual(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS) {
66 assert(vtable_index >= 0 || vtable_index == methodOopDesc::nonvirtual_vtable_index, "valid index");
67 set_common(resolved_klass, selected_klass, resolved_method, selected_method, vtable_index, CHECK);
68 }
70 void CallInfo::set_common(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS) {
71 assert(resolved_method->signature() == selected_method->signature(), "signatures must correspond");
72 _resolved_klass = resolved_klass;
73 _selected_klass = selected_klass;
74 _resolved_method = resolved_method;
75 _selected_method = selected_method;
76 _vtable_index = vtable_index;
77 if (CompilationPolicy::mustBeCompiled(selected_method)) {
78 // This path is unusual, mostly used by the '-Xcomp' stress test mode.
80 // Note: with several active threads, the mustBeCompiled may be true
81 // while canBeCompiled is false; remove assert
82 // assert(CompilationPolicy::canBeCompiled(selected_method), "cannot compile");
83 if (THREAD->is_Compiler_thread()) {
84 // don't force compilation, resolve was on behalf of compiler
85 return;
86 }
87 if (instanceKlass::cast(selected_method->method_holder())->is_not_initialized()) {
88 // 'is_not_initialized' means not only '!is_initialized', but also that
89 // initialization has not been started yet ('!being_initialized')
90 // Do not force compilation of methods in uninitialized classes.
91 // Note that doing this would throw an assert later,
92 // in CompileBroker::compile_method.
93 // We sometimes use the link resolver to do reflective lookups
94 // even before classes are initialized.
95 return;
96 }
97 CompileBroker::compile_method(selected_method, InvocationEntryBci,
98 methodHandle(), 0, "mustBeCompiled", CHECK);
99 }
100 }
103 //------------------------------------------------------------------------------------------------------------------------
104 // Klass resolution
106 void LinkResolver::check_klass_accessability(KlassHandle ref_klass, KlassHandle sel_klass, TRAPS) {
107 if (!Reflection::verify_class_access(ref_klass->as_klassOop(),
108 sel_klass->as_klassOop(),
109 true)) {
110 ResourceMark rm(THREAD);
111 Exceptions::fthrow(
112 THREAD_AND_LOCATION,
113 vmSymbolHandles::java_lang_IllegalAccessError(),
114 "tried to access class %s from class %s",
115 sel_klass->external_name(),
116 ref_klass->external_name()
117 );
118 return;
119 }
120 }
122 void LinkResolver::resolve_klass(KlassHandle& result, constantPoolHandle pool, int index, TRAPS) {
123 klassOop result_oop = pool->klass_ref_at(index, CHECK);
124 result = KlassHandle(THREAD, result_oop);
125 }
127 void LinkResolver::resolve_klass_no_update(KlassHandle& result, constantPoolHandle pool, int index, TRAPS) {
128 klassOop result_oop =
129 constantPoolOopDesc::klass_ref_at_if_loaded_check(pool, index, CHECK);
130 result = KlassHandle(THREAD, result_oop);
131 }
134 //------------------------------------------------------------------------------------------------------------------------
135 // Method resolution
136 //
137 // According to JVM spec. $5.4.3c & $5.4.3d
139 void LinkResolver::lookup_method_in_klasses(methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) {
140 methodOop result_oop = klass->uncached_lookup_method(name(), signature());
141 if (EnableMethodHandles && result_oop != NULL) {
142 switch (result_oop->intrinsic_id()) {
143 case vmIntrinsics::_invokeExact:
144 case vmIntrinsics::_invokeGeneric:
145 case vmIntrinsics::_invokeDynamic:
146 // Do not link directly to these. The VM must produce a synthetic one using lookup_implicit_method.
147 return;
148 }
149 }
150 result = methodHandle(THREAD, result_oop);
151 }
153 // returns first instance method
154 void LinkResolver::lookup_instance_method_in_klasses(methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) {
155 methodOop result_oop = klass->uncached_lookup_method(name(), signature());
156 result = methodHandle(THREAD, result_oop);
157 while (!result.is_null() && result->is_static()) {
158 klass = KlassHandle(THREAD, Klass::cast(result->method_holder())->super());
159 result = methodHandle(THREAD, klass->uncached_lookup_method(name(), signature()));
160 }
161 }
164 int LinkResolver::vtable_index_of_miranda_method(KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) {
165 ResourceMark rm(THREAD);
166 klassVtable *vt = instanceKlass::cast(klass())->vtable();
167 return vt->index_of_miranda(name(), signature());
168 }
170 void LinkResolver::lookup_method_in_interfaces(methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) {
171 instanceKlass *ik = instanceKlass::cast(klass());
172 result = methodHandle(THREAD, ik->lookup_method_in_all_interfaces(name(), signature()));
173 }
175 void LinkResolver::lookup_implicit_method(methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) {
176 if (EnableMethodHandles && MethodHandles::enabled() &&
177 klass() == SystemDictionary::MethodHandle_klass() &&
178 methodOopDesc::is_method_handle_invoke_name(name())) {
179 methodOop result_oop = SystemDictionary::find_method_handle_invoke(name,
180 signature,
181 Handle(),
182 Handle(),
183 CHECK);
184 if (result_oop != NULL) {
185 assert(result_oop->is_method_handle_invoke() && result_oop->signature() == signature(), "consistent");
186 result = methodHandle(THREAD, result_oop);
187 }
188 }
189 }
191 void LinkResolver::check_method_accessability(KlassHandle ref_klass,
192 KlassHandle resolved_klass,
193 KlassHandle sel_klass,
194 methodHandle sel_method,
195 TRAPS) {
197 AccessFlags flags = sel_method->access_flags();
199 // Special case: arrays always override "clone". JVMS 2.15.
200 // If the resolved klass is an array class, and the declaring class
201 // is java.lang.Object and the method is "clone", set the flags
202 // to public.
203 //
204 // We'll check for the method name first, as that's most likely
205 // to be false (so we'll short-circuit out of these tests).
206 if (sel_method->name() == vmSymbols::clone_name() &&
207 sel_klass() == SystemDictionary::Object_klass() &&
208 resolved_klass->oop_is_array()) {
209 // We need to change "protected" to "public".
210 assert(flags.is_protected(), "clone not protected?");
211 jint new_flags = flags.as_int();
212 new_flags = new_flags & (~JVM_ACC_PROTECTED);
213 new_flags = new_flags | JVM_ACC_PUBLIC;
214 flags.set_flags(new_flags);
215 }
217 if (!Reflection::verify_field_access(ref_klass->as_klassOop(),
218 resolved_klass->as_klassOop(),
219 sel_klass->as_klassOop(),
220 flags,
221 true)) {
222 ResourceMark rm(THREAD);
223 Exceptions::fthrow(
224 THREAD_AND_LOCATION,
225 vmSymbolHandles::java_lang_IllegalAccessError(),
226 "tried to access method %s.%s%s from class %s",
227 sel_klass->external_name(),
228 sel_method->name()->as_C_string(),
229 sel_method->signature()->as_C_string(),
230 ref_klass->external_name()
231 );
232 return;
233 }
234 }
236 void LinkResolver::resolve_method(methodHandle& resolved_method, KlassHandle& resolved_klass,
237 constantPoolHandle pool, int index, TRAPS) {
239 // resolve klass
240 resolve_klass(resolved_klass, pool, index, CHECK);
242 symbolHandle method_name (THREAD, pool->name_ref_at(index));
243 symbolHandle method_signature (THREAD, pool->signature_ref_at(index));
244 KlassHandle current_klass(THREAD, pool->pool_holder());
246 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
247 }
249 void LinkResolver::resolve_dynamic_method(methodHandle& resolved_method, KlassHandle& resolved_klass, constantPoolHandle pool, int index, TRAPS) {
250 // The class is java.dyn.MethodHandle
251 resolved_klass = SystemDictionaryHandles::MethodHandle_klass();
253 symbolHandle method_name = vmSymbolHandles::invokeExact_name();
255 symbolHandle method_signature(THREAD, pool->signature_ref_at(index));
256 KlassHandle current_klass (THREAD, pool->pool_holder());
258 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
259 }
261 void LinkResolver::resolve_interface_method(methodHandle& resolved_method, KlassHandle& resolved_klass, constantPoolHandle pool, int index, TRAPS) {
263 // resolve klass
264 resolve_klass(resolved_klass, pool, index, CHECK);
265 symbolHandle method_name (THREAD, pool->name_ref_at(index));
266 symbolHandle method_signature (THREAD, pool->signature_ref_at(index));
267 KlassHandle current_klass(THREAD, pool->pool_holder());
269 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
270 }
273 void LinkResolver::resolve_method(methodHandle& resolved_method, KlassHandle resolved_klass,
274 symbolHandle method_name, symbolHandle method_signature,
275 KlassHandle current_klass, bool check_access, TRAPS) {
277 // 1. check if klass is not interface
278 if (resolved_klass->is_interface()) {
279 char buf[200];
280 jio_snprintf(buf, sizeof(buf), "Found interface %s, but class was expected", Klass::cast(resolved_klass())->external_name());
281 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
282 }
284 // 2. lookup method in resolved klass and its super klasses
285 lookup_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, CHECK);
287 if (resolved_method.is_null()) { // not found in the class hierarchy
288 // 3. lookup method in all the interfaces implemented by the resolved klass
289 lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK);
291 if (resolved_method.is_null()) {
292 // JSR 292: see if this is an implicitly generated method MethodHandle.invoke(*...)
293 lookup_implicit_method(resolved_method, resolved_klass, method_name, method_signature, CHECK);
294 }
296 if (resolved_method.is_null()) {
297 // 4. method lookup failed
298 ResourceMark rm(THREAD);
299 THROW_MSG(vmSymbols::java_lang_NoSuchMethodError(),
300 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
301 method_name(),
302 method_signature()));
303 }
304 }
306 // 5. check if method is concrete
307 if (resolved_method->is_abstract() && !resolved_klass->is_abstract()) {
308 ResourceMark rm(THREAD);
309 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
310 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
311 method_name(),
312 method_signature()));
313 }
315 // 6. access checks, access checking may be turned off when calling from within the VM.
316 if (check_access) {
317 assert(current_klass.not_null() , "current_klass should not be null");
319 // check if method can be accessed by the referring class
320 check_method_accessability(current_klass,
321 resolved_klass,
322 KlassHandle(THREAD, resolved_method->method_holder()),
323 resolved_method,
324 CHECK);
326 // check loader constraints
327 Handle loader (THREAD, instanceKlass::cast(current_klass())->class_loader());
328 Handle class_loader (THREAD, instanceKlass::cast(resolved_method->method_holder())->class_loader());
329 {
330 ResourceMark rm(THREAD);
331 char* failed_type_name =
332 SystemDictionary::check_signature_loaders(method_signature, loader,
333 class_loader, true, CHECK);
334 if (failed_type_name != NULL) {
335 const char* msg = "loader constraint violation: when resolving method"
336 " \"%s\" the class loader (instance of %s) of the current class, %s,"
337 " and the class loader (instance of %s) for resolved class, %s, have"
338 " different Class objects for the type %s used in the signature";
339 char* sig = methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),method_name(),method_signature());
340 const char* loader1 = SystemDictionary::loader_name(loader());
341 char* current = instanceKlass::cast(current_klass())->name()->as_C_string();
342 const char* loader2 = SystemDictionary::loader_name(class_loader());
343 char* resolved = instanceKlass::cast(resolved_klass())->name()->as_C_string();
344 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) +
345 strlen(current) + strlen(loader2) + strlen(resolved) +
346 strlen(failed_type_name);
347 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
348 jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2,
349 resolved, failed_type_name);
350 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf);
351 }
352 }
353 }
354 }
356 void LinkResolver::resolve_interface_method(methodHandle& resolved_method,
357 KlassHandle resolved_klass,
358 symbolHandle method_name,
359 symbolHandle method_signature,
360 KlassHandle current_klass,
361 bool check_access, TRAPS) {
363 // check if klass is interface
364 if (!resolved_klass->is_interface()) {
365 char buf[200];
366 jio_snprintf(buf, sizeof(buf), "Found class %s, but interface was expected", Klass::cast(resolved_klass())->external_name());
367 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
368 }
370 // lookup method in this interface or its super, java.lang.Object
371 lookup_instance_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, CHECK);
373 if (resolved_method.is_null()) {
374 // lookup method in all the super-interfaces
375 lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK);
376 if (resolved_method.is_null()) {
377 // no method found
378 ResourceMark rm(THREAD);
379 THROW_MSG(vmSymbols::java_lang_NoSuchMethodError(),
380 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
381 method_name(),
382 method_signature()));
383 }
384 }
386 if (check_access) {
387 HandleMark hm(THREAD);
388 Handle loader (THREAD, instanceKlass::cast(current_klass())->class_loader());
389 Handle class_loader (THREAD, instanceKlass::cast(resolved_method->method_holder())->class_loader());
390 {
391 ResourceMark rm(THREAD);
392 char* failed_type_name =
393 SystemDictionary::check_signature_loaders(method_signature, loader,
394 class_loader, true, CHECK);
395 if (failed_type_name != NULL) {
396 const char* msg = "loader constraint violation: when resolving "
397 "interface method \"%s\" the class loader (instance of %s) of the "
398 "current class, %s, and the class loader (instance of %s) for "
399 "resolved class, %s, have different Class objects for the type %s "
400 "used in the signature";
401 char* sig = methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),method_name(),method_signature());
402 const char* loader1 = SystemDictionary::loader_name(loader());
403 char* current = instanceKlass::cast(current_klass())->name()->as_C_string();
404 const char* loader2 = SystemDictionary::loader_name(class_loader());
405 char* resolved = instanceKlass::cast(resolved_klass())->name()->as_C_string();
406 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) +
407 strlen(current) + strlen(loader2) + strlen(resolved) +
408 strlen(failed_type_name);
409 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
410 jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2,
411 resolved, failed_type_name);
412 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf);
413 }
414 }
415 }
416 }
418 //------------------------------------------------------------------------------------------------------------------------
419 // Field resolution
421 void LinkResolver::check_field_accessability(KlassHandle ref_klass,
422 KlassHandle resolved_klass,
423 KlassHandle sel_klass,
424 fieldDescriptor& fd,
425 TRAPS) {
426 if (!Reflection::verify_field_access(ref_klass->as_klassOop(),
427 resolved_klass->as_klassOop(),
428 sel_klass->as_klassOop(),
429 fd.access_flags(),
430 true)) {
431 ResourceMark rm(THREAD);
432 Exceptions::fthrow(
433 THREAD_AND_LOCATION,
434 vmSymbolHandles::java_lang_IllegalAccessError(),
435 "tried to access field %s.%s from class %s",
436 sel_klass->external_name(),
437 fd.name()->as_C_string(),
438 ref_klass->external_name()
439 );
440 return;
441 }
442 }
444 void LinkResolver::resolve_field(FieldAccessInfo& result, constantPoolHandle pool, int index, Bytecodes::Code byte, bool check_only, TRAPS) {
445 resolve_field(result, pool, index, byte, check_only, true, CHECK);
446 }
448 void LinkResolver::resolve_field(FieldAccessInfo& result, constantPoolHandle pool, int index, Bytecodes::Code byte, bool check_only, bool update_pool, TRAPS) {
449 assert(byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic ||
450 byte == Bytecodes::_getfield || byte == Bytecodes::_putfield, "bad bytecode");
452 bool is_static = (byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic);
453 bool is_put = (byte == Bytecodes::_putfield || byte == Bytecodes::_putstatic);
455 // resolve specified klass
456 KlassHandle resolved_klass;
457 if (update_pool) {
458 resolve_klass(resolved_klass, pool, index, CHECK);
459 } else {
460 resolve_klass_no_update(resolved_klass, pool, index, CHECK);
461 }
462 // Load these early in case the resolve of the containing klass fails
463 symbolOop field = pool->name_ref_at(index);
464 symbolHandle field_h (THREAD, field); // preserve in case we need the name
465 symbolOop sig = pool->signature_ref_at(index);
466 // Check if there's a resolved klass containing the field
467 if( resolved_klass.is_null() ) {
468 ResourceMark rm(THREAD);
469 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string());
470 }
472 // Resolve instance field
473 fieldDescriptor fd; // find_field initializes fd if found
474 KlassHandle sel_klass(THREAD, instanceKlass::cast(resolved_klass())->find_field(field, sig, &fd));
475 // check if field exists; i.e., if a klass containing the field def has been selected
476 if (sel_klass.is_null()){
477 ResourceMark rm(THREAD);
478 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string());
479 }
481 // check access
482 KlassHandle ref_klass(THREAD, pool->pool_holder());
483 check_field_accessability(ref_klass, resolved_klass, sel_klass, fd, CHECK);
485 // check for errors
486 if (is_static != fd.is_static()) {
487 char msg[200];
488 jio_snprintf(msg, sizeof(msg), "Expected %s field %s.%s", is_static ? "static" : "non-static", Klass::cast(resolved_klass())->external_name(), fd.name()->as_C_string());
489 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), msg);
490 }
492 // Final fields can only be accessed from its own class.
493 if (is_put && fd.access_flags().is_final() && sel_klass() != pool->pool_holder()) {
494 THROW(vmSymbols::java_lang_IllegalAccessError());
495 }
497 // initialize resolved_klass if necessary
498 // note 1: the klass which declared the field must be initialized (i.e, sel_klass)
499 // according to the newest JVM spec (5.5, p.170) - was bug (gri 7/28/99)
500 //
501 // note 2: we don't want to force initialization if we are just checking
502 // if the field access is legal; e.g., during compilation
503 if (is_static && !check_only) {
504 sel_klass->initialize(CHECK);
505 }
507 {
508 HandleMark hm(THREAD);
509 Handle ref_loader (THREAD, instanceKlass::cast(ref_klass())->class_loader());
510 Handle sel_loader (THREAD, instanceKlass::cast(sel_klass())->class_loader());
511 symbolHandle signature_ref (THREAD, pool->signature_ref_at(index));
512 {
513 ResourceMark rm(THREAD);
514 char* failed_type_name =
515 SystemDictionary::check_signature_loaders(signature_ref,
516 ref_loader, sel_loader,
517 false,
518 CHECK);
519 if (failed_type_name != NULL) {
520 const char* msg = "loader constraint violation: when resolving field"
521 " \"%s\" the class loader (instance of %s) of the referring class, "
522 "%s, and the class loader (instance of %s) for the field's resolved "
523 "type, %s, have different Class objects for that type";
524 char* field_name = field_h()->as_C_string();
525 const char* loader1 = SystemDictionary::loader_name(ref_loader());
526 char* sel = instanceKlass::cast(sel_klass())->name()->as_C_string();
527 const char* loader2 = SystemDictionary::loader_name(sel_loader());
528 size_t buflen = strlen(msg) + strlen(field_name) + strlen(loader1) +
529 strlen(sel) + strlen(loader2) + strlen(failed_type_name);
530 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
531 jio_snprintf(buf, buflen, msg, field_name, loader1, sel, loader2,
532 failed_type_name);
533 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf);
534 }
535 }
536 }
538 // return information. note that the klass is set to the actual klass containing the
539 // field, otherwise access of static fields in superclasses will not work.
540 KlassHandle holder (THREAD, fd.field_holder());
541 symbolHandle name (THREAD, fd.name());
542 result.set(holder, name, fd.index(), fd.offset(), fd.field_type(), fd.access_flags());
543 }
546 //------------------------------------------------------------------------------------------------------------------------
547 // Invoke resolution
548 //
549 // Naming conventions:
550 //
551 // resolved_method the specified method (i.e., static receiver specified via constant pool index)
552 // sel_method the selected method (selected via run-time lookup; e.g., based on dynamic receiver class)
553 // resolved_klass the specified klass (i.e., specified via constant pool index)
554 // recv_klass the receiver klass
557 void LinkResolver::resolve_static_call(CallInfo& result, KlassHandle& resolved_klass, symbolHandle method_name,
558 symbolHandle method_signature, KlassHandle current_klass,
559 bool check_access, bool initialize_class, TRAPS) {
560 methodHandle resolved_method;
561 linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
562 resolved_klass = KlassHandle(THREAD, Klass::cast(resolved_method->method_holder()));
564 // Initialize klass (this should only happen if everything is ok)
565 if (initialize_class && resolved_klass->should_be_initialized()) {
566 resolved_klass->initialize(CHECK);
567 linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
568 }
570 // setup result
571 result.set_static(resolved_klass, resolved_method, CHECK);
572 }
574 // throws linktime exceptions
575 void LinkResolver::linktime_resolve_static_method(methodHandle& resolved_method, KlassHandle resolved_klass,
576 symbolHandle method_name, symbolHandle method_signature,
577 KlassHandle current_klass, bool check_access, TRAPS) {
579 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
580 assert(resolved_method->name() != vmSymbols::class_initializer_name(), "should have been checked in verifier");
582 // check if static
583 if (!resolved_method->is_static()) {
584 char buf[200];
585 jio_snprintf(buf, sizeof(buf), "Expected static method %s", methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
586 resolved_method->name(),
587 resolved_method->signature()));
588 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
589 }
590 }
593 void LinkResolver::resolve_special_call(CallInfo& result, KlassHandle resolved_klass, symbolHandle method_name,
594 symbolHandle method_signature, KlassHandle current_klass, bool check_access, TRAPS) {
595 methodHandle resolved_method;
596 linktime_resolve_special_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
597 runtime_resolve_special_method(result, resolved_method, resolved_klass, current_klass, check_access, CHECK);
598 }
600 // throws linktime exceptions
601 void LinkResolver::linktime_resolve_special_method(methodHandle& resolved_method, KlassHandle resolved_klass,
602 symbolHandle method_name, symbolHandle method_signature,
603 KlassHandle current_klass, bool check_access, TRAPS) {
605 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
607 // check if method name is <init>, that it is found in same klass as static type
608 if (resolved_method->name() == vmSymbols::object_initializer_name() &&
609 resolved_method->method_holder() != resolved_klass()) {
610 ResourceMark rm(THREAD);
611 Exceptions::fthrow(
612 THREAD_AND_LOCATION,
613 vmSymbolHandles::java_lang_NoSuchMethodError(),
614 "%s: method %s%s not found",
615 resolved_klass->external_name(),
616 resolved_method->name()->as_C_string(),
617 resolved_method->signature()->as_C_string()
618 );
619 return;
620 }
622 // check if not static
623 if (resolved_method->is_static()) {
624 char buf[200];
625 jio_snprintf(buf, sizeof(buf),
626 "Expecting non-static method %s",
627 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
628 resolved_method->name(),
629 resolved_method->signature()));
630 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
631 }
632 }
634 // throws runtime exceptions
635 void LinkResolver::runtime_resolve_special_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass,
636 KlassHandle current_klass, bool check_access, TRAPS) {
638 // resolved method is selected method unless we have an old-style lookup
639 methodHandle sel_method(THREAD, resolved_method());
641 // check if this is an old-style super call and do a new lookup if so
642 { KlassHandle method_klass = KlassHandle(THREAD,
643 resolved_method->method_holder());
645 if (check_access &&
646 // a) check if ACC_SUPER flag is set for the current class
647 current_klass->is_super() &&
648 // b) check if the method class is a superclass of the current class (superclass relation is not reflexive!)
649 current_klass->is_subtype_of(method_klass()) && current_klass() != method_klass() &&
650 // c) check if the method is not <init>
651 resolved_method->name() != vmSymbols::object_initializer_name()) {
652 // Lookup super method
653 KlassHandle super_klass(THREAD, current_klass->super());
654 lookup_instance_method_in_klasses(sel_method, super_klass,
655 symbolHandle(THREAD, resolved_method->name()),
656 symbolHandle(THREAD, resolved_method->signature()), CHECK);
657 // check if found
658 if (sel_method.is_null()) {
659 ResourceMark rm(THREAD);
660 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
661 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
662 resolved_method->name(),
663 resolved_method->signature()));
664 }
665 }
666 }
668 // check if not static
669 if (sel_method->is_static()) {
670 char buf[200];
671 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
672 resolved_method->name(),
673 resolved_method->signature()));
674 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
675 }
677 // check if abstract
678 if (sel_method->is_abstract()) {
679 ResourceMark rm(THREAD);
680 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
681 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
682 sel_method->name(),
683 sel_method->signature()));
684 }
686 // setup result
687 result.set_static(resolved_klass, sel_method, CHECK);
688 }
690 void LinkResolver::resolve_virtual_call(CallInfo& result, Handle recv, KlassHandle receiver_klass, KlassHandle resolved_klass,
691 symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass,
692 bool check_access, bool check_null_and_abstract, TRAPS) {
693 methodHandle resolved_method;
694 linktime_resolve_virtual_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
695 runtime_resolve_virtual_method(result, resolved_method, resolved_klass, recv, receiver_klass, check_null_and_abstract, CHECK);
696 }
698 // throws linktime exceptions
699 void LinkResolver::linktime_resolve_virtual_method(methodHandle &resolved_method, KlassHandle resolved_klass,
700 symbolHandle method_name, symbolHandle method_signature,
701 KlassHandle current_klass, bool check_access, TRAPS) {
702 // normal method resolution
703 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
705 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier");
706 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier");
708 // check if not static
709 if (resolved_method->is_static()) {
710 char buf[200];
711 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
712 resolved_method->name(),
713 resolved_method->signature()));
714 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
715 }
716 }
718 // throws runtime exceptions
719 void LinkResolver::runtime_resolve_virtual_method(CallInfo& result,
720 methodHandle resolved_method,
721 KlassHandle resolved_klass,
722 Handle recv,
723 KlassHandle recv_klass,
724 bool check_null_and_abstract,
725 TRAPS) {
727 // setup default return values
728 int vtable_index = methodOopDesc::invalid_vtable_index;
729 methodHandle selected_method;
731 assert(recv.is_null() || recv->is_oop(), "receiver is not an oop");
733 // runtime method resolution
734 if (check_null_and_abstract && recv.is_null()) { // check if receiver exists
735 THROW(vmSymbols::java_lang_NullPointerException());
736 }
738 // Virtual methods cannot be resolved before its klass has been linked, for otherwise the methodOop's
739 // has not been rewritten, and the vtable initialized.
740 assert(instanceKlass::cast(resolved_method->method_holder())->is_linked(), "must be linked");
742 // Virtual methods cannot be resolved before its klass has been linked, for otherwise the methodOop's
743 // has not been rewritten, and the vtable initialized. Make sure to do this after the nullcheck, since
744 // a missing receiver might result in a bogus lookup.
745 assert(instanceKlass::cast(resolved_method->method_holder())->is_linked(), "must be linked");
747 // do lookup based on receiver klass using the vtable index
748 if (resolved_method->method_holder()->klass_part()->is_interface()) { // miranda method
749 vtable_index = vtable_index_of_miranda_method(resolved_klass,
750 symbolHandle(THREAD, resolved_method->name()),
751 symbolHandle(THREAD, resolved_method->signature()), CHECK);
752 assert(vtable_index >= 0 , "we should have valid vtable index at this point");
754 instanceKlass* inst = instanceKlass::cast(recv_klass());
755 selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index));
756 } else {
757 // at this point we are sure that resolved_method is virtual and not
758 // a miranda method; therefore, it must have a valid vtable index.
759 vtable_index = resolved_method->vtable_index();
760 // We could get a negative vtable_index for final methods,
761 // because as an optimization they are they are never put in the vtable,
762 // unless they override an existing method.
763 // If we do get a negative, it means the resolved method is the the selected
764 // method, and it can never be changed by an override.
765 if (vtable_index == methodOopDesc::nonvirtual_vtable_index) {
766 assert(resolved_method->can_be_statically_bound(), "cannot override this method");
767 selected_method = resolved_method;
768 } else {
769 // recv_klass might be an arrayKlassOop but all vtables start at
770 // the same place. The cast is to avoid virtual call and assertion.
771 instanceKlass* inst = (instanceKlass*)recv_klass()->klass_part();
772 selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index));
773 }
774 }
776 // check if method exists
777 if (selected_method.is_null()) {
778 ResourceMark rm(THREAD);
779 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
780 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
781 resolved_method->name(),
782 resolved_method->signature()));
783 }
785 // check if abstract
786 if (check_null_and_abstract && selected_method->is_abstract()) {
787 ResourceMark rm(THREAD);
788 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
789 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
790 selected_method->name(),
791 selected_method->signature()));
792 }
794 // setup result
795 result.set_virtual(resolved_klass, recv_klass, resolved_method, selected_method, vtable_index, CHECK);
796 }
798 void LinkResolver::resolve_interface_call(CallInfo& result, Handle recv, KlassHandle recv_klass, KlassHandle resolved_klass,
799 symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass,
800 bool check_access, bool check_null_and_abstract, TRAPS) {
801 methodHandle resolved_method;
802 linktime_resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
803 runtime_resolve_interface_method(result, resolved_method, resolved_klass, recv, recv_klass, check_null_and_abstract, CHECK);
804 }
806 // throws linktime exceptions
807 void LinkResolver::linktime_resolve_interface_method(methodHandle& resolved_method, KlassHandle resolved_klass, symbolHandle method_name,
808 symbolHandle method_signature, KlassHandle current_klass, bool check_access, TRAPS) {
809 // normal interface method resolution
810 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
812 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier");
813 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier");
814 }
816 // throws runtime exceptions
817 void LinkResolver::runtime_resolve_interface_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass,
818 Handle recv, KlassHandle recv_klass, bool check_null_and_abstract, TRAPS) {
819 // check if receiver exists
820 if (check_null_and_abstract && recv.is_null()) {
821 THROW(vmSymbols::java_lang_NullPointerException());
822 }
824 // check if receiver klass implements the resolved interface
825 if (!recv_klass->is_subtype_of(resolved_klass())) {
826 char buf[200];
827 jio_snprintf(buf, sizeof(buf), "Class %s does not implement the requested interface %s",
828 (Klass::cast(recv_klass()))->external_name(),
829 (Klass::cast(resolved_klass()))->external_name());
830 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
831 }
832 // do lookup based on receiver klass
833 methodHandle sel_method;
834 lookup_instance_method_in_klasses(sel_method, recv_klass,
835 symbolHandle(THREAD, resolved_method->name()),
836 symbolHandle(THREAD, resolved_method->signature()), CHECK);
837 // check if method exists
838 if (sel_method.is_null()) {
839 ResourceMark rm(THREAD);
840 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
841 methodOopDesc::name_and_sig_as_C_string(Klass::cast(recv_klass()),
842 resolved_method->name(),
843 resolved_method->signature()));
844 }
845 // check if public
846 if (!sel_method->is_public()) {
847 ResourceMark rm(THREAD);
848 THROW_MSG(vmSymbols::java_lang_IllegalAccessError(),
849 methodOopDesc::name_and_sig_as_C_string(Klass::cast(recv_klass()),
850 sel_method->name(),
851 sel_method->signature()));
852 }
853 // check if abstract
854 if (check_null_and_abstract && sel_method->is_abstract()) {
855 ResourceMark rm(THREAD);
856 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
857 methodOopDesc::name_and_sig_as_C_string(Klass::cast(recv_klass()),
858 sel_method->name(),
859 sel_method->signature()));
860 }
861 // setup result
862 result.set_interface(resolved_klass, recv_klass, resolved_method, sel_method, CHECK);
863 }
866 methodHandle LinkResolver::linktime_resolve_interface_method_or_null(
867 KlassHandle resolved_klass,
868 symbolHandle method_name,
869 symbolHandle method_signature,
870 KlassHandle current_klass,
871 bool check_access) {
872 EXCEPTION_MARK;
873 methodHandle method_result;
874 linktime_resolve_interface_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD);
875 if (HAS_PENDING_EXCEPTION) {
876 CLEAR_PENDING_EXCEPTION;
877 return methodHandle();
878 } else {
879 return method_result;
880 }
881 }
883 methodHandle LinkResolver::linktime_resolve_virtual_method_or_null(
884 KlassHandle resolved_klass,
885 symbolHandle method_name,
886 symbolHandle method_signature,
887 KlassHandle current_klass,
888 bool check_access) {
889 EXCEPTION_MARK;
890 methodHandle method_result;
891 linktime_resolve_virtual_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD);
892 if (HAS_PENDING_EXCEPTION) {
893 CLEAR_PENDING_EXCEPTION;
894 return methodHandle();
895 } else {
896 return method_result;
897 }
898 }
900 methodHandle LinkResolver::resolve_virtual_call_or_null(
901 KlassHandle receiver_klass,
902 KlassHandle resolved_klass,
903 symbolHandle name,
904 symbolHandle signature,
905 KlassHandle current_klass) {
906 EXCEPTION_MARK;
907 CallInfo info;
908 resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD);
909 if (HAS_PENDING_EXCEPTION) {
910 CLEAR_PENDING_EXCEPTION;
911 return methodHandle();
912 }
913 return info.selected_method();
914 }
916 methodHandle LinkResolver::resolve_interface_call_or_null(
917 KlassHandle receiver_klass,
918 KlassHandle resolved_klass,
919 symbolHandle name,
920 symbolHandle signature,
921 KlassHandle current_klass) {
922 EXCEPTION_MARK;
923 CallInfo info;
924 resolve_interface_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD);
925 if (HAS_PENDING_EXCEPTION) {
926 CLEAR_PENDING_EXCEPTION;
927 return methodHandle();
928 }
929 return info.selected_method();
930 }
932 int LinkResolver::resolve_virtual_vtable_index(
933 KlassHandle receiver_klass,
934 KlassHandle resolved_klass,
935 symbolHandle name,
936 symbolHandle signature,
937 KlassHandle current_klass) {
938 EXCEPTION_MARK;
939 CallInfo info;
940 resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD);
941 if (HAS_PENDING_EXCEPTION) {
942 CLEAR_PENDING_EXCEPTION;
943 return methodOopDesc::invalid_vtable_index;
944 }
945 return info.vtable_index();
946 }
948 methodHandle LinkResolver::resolve_static_call_or_null(
949 KlassHandle resolved_klass,
950 symbolHandle name,
951 symbolHandle signature,
952 KlassHandle current_klass) {
953 EXCEPTION_MARK;
954 CallInfo info;
955 resolve_static_call(info, resolved_klass, name, signature, current_klass, true, false, THREAD);
956 if (HAS_PENDING_EXCEPTION) {
957 CLEAR_PENDING_EXCEPTION;
958 return methodHandle();
959 }
960 return info.selected_method();
961 }
963 methodHandle LinkResolver::resolve_special_call_or_null(KlassHandle resolved_klass, symbolHandle name, symbolHandle signature,
964 KlassHandle current_klass) {
965 EXCEPTION_MARK;
966 CallInfo info;
967 resolve_special_call(info, resolved_klass, name, signature, current_klass, true, THREAD);
968 if (HAS_PENDING_EXCEPTION) {
969 CLEAR_PENDING_EXCEPTION;
970 return methodHandle();
971 }
972 return info.selected_method();
973 }
977 //------------------------------------------------------------------------------------------------------------------------
978 // ConstantPool entries
980 void LinkResolver::resolve_invoke(CallInfo& result, Handle recv, constantPoolHandle pool, int index, Bytecodes::Code byte, TRAPS) {
981 switch (byte) {
982 case Bytecodes::_invokestatic : resolve_invokestatic (result, pool, index, CHECK); break;
983 case Bytecodes::_invokespecial : resolve_invokespecial (result, pool, index, CHECK); break;
984 case Bytecodes::_invokevirtual : resolve_invokevirtual (result, recv, pool, index, CHECK); break;
985 case Bytecodes::_invokedynamic : resolve_invokedynamic (result, pool, index, CHECK); break;
986 case Bytecodes::_invokeinterface: resolve_invokeinterface(result, recv, pool, index, CHECK); break;
987 }
988 return;
989 }
991 void LinkResolver::resolve_pool(KlassHandle& resolved_klass, symbolHandle& method_name, symbolHandle& method_signature,
992 KlassHandle& current_klass, constantPoolHandle pool, int index, TRAPS) {
993 // resolve klass
994 resolve_klass(resolved_klass, pool, index, CHECK);
996 // Get name, signature, and static klass
997 method_name = symbolHandle(THREAD, pool->name_ref_at(index));
998 method_signature = symbolHandle(THREAD, pool->signature_ref_at(index));
999 current_klass = KlassHandle(THREAD, pool->pool_holder());
1000 }
1003 void LinkResolver::resolve_invokestatic(CallInfo& result, constantPoolHandle pool, int index, TRAPS) {
1004 KlassHandle resolved_klass;
1005 symbolHandle method_name;
1006 symbolHandle method_signature;
1007 KlassHandle current_klass;
1008 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
1009 resolve_static_call(result, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK);
1010 }
1013 void LinkResolver::resolve_invokespecial(CallInfo& result, constantPoolHandle pool, int index, TRAPS) {
1014 KlassHandle resolved_klass;
1015 symbolHandle method_name;
1016 symbolHandle method_signature;
1017 KlassHandle current_klass;
1018 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
1019 resolve_special_call(result, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
1020 }
1023 void LinkResolver::resolve_invokevirtual(CallInfo& result, Handle recv,
1024 constantPoolHandle pool, int index,
1025 TRAPS) {
1027 KlassHandle resolved_klass;
1028 symbolHandle method_name;
1029 symbolHandle method_signature;
1030 KlassHandle current_klass;
1031 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
1032 KlassHandle recvrKlass (THREAD, recv.is_null() ? (klassOop)NULL : recv->klass());
1033 resolve_virtual_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK);
1034 }
1037 void LinkResolver::resolve_invokeinterface(CallInfo& result, Handle recv, constantPoolHandle pool, int index, TRAPS) {
1038 KlassHandle resolved_klass;
1039 symbolHandle method_name;
1040 symbolHandle method_signature;
1041 KlassHandle current_klass;
1042 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
1043 KlassHandle recvrKlass (THREAD, recv.is_null() ? (klassOop)NULL : recv->klass());
1044 resolve_interface_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK);
1045 }
1048 void LinkResolver::resolve_invokedynamic(CallInfo& result, constantPoolHandle pool, int raw_index, TRAPS) {
1049 assert(EnableInvokeDynamic, "");
1051 // This guy is reached from InterpreterRuntime::resolve_invokedynamic.
1053 // At this point, we only need the signature, and can ignore the name.
1054 symbolHandle method_signature(THREAD, pool->signature_ref_at(raw_index)); // raw_index works directly
1055 symbolHandle method_name = vmSymbolHandles::invokeExact_name();
1056 KlassHandle resolved_klass = SystemDictionaryHandles::MethodHandle_klass();
1058 // JSR 292: this must be an implicitly generated method MethodHandle.invokeExact(*...)
1059 // The extra MH receiver will be inserted into the stack on every call.
1060 methodHandle resolved_method;
1061 lookup_implicit_method(resolved_method, resolved_klass, method_name, method_signature, CHECK);
1062 if (resolved_method.is_null()) {
1063 THROW(vmSymbols::java_lang_InternalError());
1064 }
1065 result.set_virtual(resolved_klass, KlassHandle(), resolved_method, resolved_method, resolved_method->vtable_index(), CHECK);
1066 }
1068 //------------------------------------------------------------------------------------------------------------------------
1069 #ifndef PRODUCT
1071 void FieldAccessInfo::print() {
1072 ResourceMark rm;
1073 tty->print_cr("Field %s@%d", name()->as_C_string(), field_offset());
1074 }
1076 #endif
