1 /* 2 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "classfile/defaultMethods.hpp" 27 #include "classfile/symbolTable.hpp" 28 #include "classfile/systemDictionary.hpp" 29 #include "classfile/vmSymbols.hpp" 30 #include "compiler/compileBroker.hpp" 31 #include "gc/shared/collectedHeap.inline.hpp" 32 #include "interpreter/bytecode.hpp" 33 #include "interpreter/interpreterRuntime.hpp" 34 #include "interpreter/linkResolver.hpp" 35 #include "logging/log.hpp" 36 #include "memory/resourceArea.hpp" 37 #include "memory/universe.inline.hpp" 38 #include "oops/instanceKlass.hpp" 39 #include "oops/method.hpp" 40 #include "oops/objArrayOop.hpp" 41 #include "oops/oop.inline.hpp" 42 #include "prims/methodHandles.hpp" 43 #include "prims/nativeLookup.hpp" 44 #include "runtime/compilationPolicy.hpp" 45 #include "runtime/fieldDescriptor.hpp" 46 #include "runtime/frame.inline.hpp" 47 #include "runtime/handles.inline.hpp" 48 #include "runtime/reflection.hpp" 49 #include "runtime/signature.hpp" 50 #include "runtime/thread.inline.hpp" 51 #include "runtime/vmThread.hpp" 52 53 54 //------------------------------------------------------------------------------------------------------------------------ 55 // Implementation of CallInfo 56 57 58 void CallInfo::set_static(KlassHandle resolved_klass, const methodHandle& resolved_method, TRAPS) { 59 int vtable_index = Method::nonvirtual_vtable_index; 60 set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, CallInfo::direct_call, vtable_index, CHECK); 61 } 62 63 64 void CallInfo::set_interface(KlassHandle resolved_klass, 65 KlassHandle selected_klass, 66 const methodHandle& resolved_method, 67 const methodHandle& selected_method, 68 int itable_index, TRAPS) { 69 // This is only called for interface methods. If the resolved_method 70 // comes from java/lang/Object, it can be the subject of a virtual call, so 71 // we should pick the vtable index from the resolved method. 72 // In that case, the caller must call set_virtual instead of set_interface. 73 assert(resolved_method->method_holder()->is_interface(), ""); 74 assert(itable_index == resolved_method()->itable_index(), ""); 75 set_common(resolved_klass, selected_klass, resolved_method, selected_method, CallInfo::itable_call, itable_index, CHECK); 76 } 77 78 void CallInfo::set_virtual(KlassHandle resolved_klass, 79 KlassHandle selected_klass, 80 const methodHandle& resolved_method, 81 const methodHandle& selected_method, 82 int vtable_index, TRAPS) { 83 assert(vtable_index >= 0 || vtable_index == Method::nonvirtual_vtable_index, "valid index"); 84 assert(vtable_index < 0 || !resolved_method->has_vtable_index() || vtable_index == resolved_method->vtable_index(), ""); 85 CallKind kind = (vtable_index >= 0 && !resolved_method->can_be_statically_bound() ? CallInfo::vtable_call : CallInfo::direct_call); 86 set_common(resolved_klass, selected_klass, resolved_method, selected_method, kind, vtable_index, CHECK); 87 assert(!resolved_method->is_compiled_lambda_form(), "these must be handled via an invokehandle call"); 88 } 89 90 void CallInfo::set_handle(const methodHandle& resolved_method, 91 Handle resolved_appendix, 92 Handle resolved_method_type, TRAPS) { 93 set_handle(SystemDictionary::MethodHandle_klass(), resolved_method, resolved_appendix, resolved_method_type, CHECK); 94 } 95 96 void CallInfo::set_handle(KlassHandle resolved_klass, 97 const methodHandle& resolved_method, 98 Handle resolved_appendix, 99 Handle resolved_method_type, TRAPS) { 100 if (resolved_method.is_null()) { 101 THROW_MSG(vmSymbols::java_lang_InternalError(), "resolved method is null"); 102 } 103 assert(resolved_method->intrinsic_id() == vmIntrinsics::_invokeBasic || 104 resolved_method->is_compiled_lambda_form(), 105 "linkMethod must return one of these"); 106 int vtable_index = Method::nonvirtual_vtable_index; 107 assert(!resolved_method->has_vtable_index(), ""); 108 set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, CallInfo::direct_call, vtable_index, CHECK); 109 _resolved_appendix = resolved_appendix; 110 _resolved_method_type = resolved_method_type; 111 } 112 113 void CallInfo::set_common(KlassHandle resolved_klass, 114 KlassHandle selected_klass, 115 const methodHandle& resolved_method, 116 const methodHandle& selected_method, 117 CallKind kind, 118 int index, 119 TRAPS) { 120 assert(resolved_method->signature() == selected_method->signature(), "signatures must correspond"); 121 _resolved_klass = resolved_klass; 122 _selected_klass = selected_klass; 123 _resolved_method = resolved_method; 124 _selected_method = selected_method; 125 _call_kind = kind; 126 _call_index = index; 127 _resolved_appendix = Handle(); 128 DEBUG_ONLY(verify()); // verify before making side effects 129 130 if (CompilationPolicy::must_be_compiled(selected_method)) { 131 // This path is unusual, mostly used by the '-Xcomp' stress test mode. 132 133 // Note: with several active threads, the must_be_compiled may be true 134 // while can_be_compiled is false; remove assert 135 // assert(CompilationPolicy::can_be_compiled(selected_method), "cannot compile"); 136 if (!THREAD->can_call_java()) { 137 // don't force compilation, resolve was on behalf of compiler 138 return; 139 } 140 if (selected_method->method_holder()->is_not_initialized()) { 141 // 'is_not_initialized' means not only '!is_initialized', but also that 142 // initialization has not been started yet ('!being_initialized') 143 // Do not force compilation of methods in uninitialized classes. 144 // Note that doing this would throw an assert later, 145 // in CompileBroker::compile_method. 146 // We sometimes use the link resolver to do reflective lookups 147 // even before classes are initialized. 148 return; 149 } 150 CompileBroker::compile_method(selected_method, InvocationEntryBci, 151 CompilationPolicy::policy()->initial_compile_level(), 152 methodHandle(), 0, "must_be_compiled", CHECK); 153 } 154 } 155 156 // utility query for unreflecting a method 157 CallInfo::CallInfo(Method* resolved_method, Klass* resolved_klass) { 158 Klass* resolved_method_holder = resolved_method->method_holder(); 159 if (resolved_klass == NULL) { // 2nd argument defaults to holder of 1st 160 resolved_klass = resolved_method_holder; 161 } 162 _resolved_klass = resolved_klass; 163 _selected_klass = resolved_klass; 164 _resolved_method = resolved_method; 165 _selected_method = resolved_method; 166 // classify: 167 CallKind kind = CallInfo::unknown_kind; 168 int index = resolved_method->vtable_index(); 169 if (resolved_method->can_be_statically_bound()) { 170 kind = CallInfo::direct_call; 171 } else if (!resolved_method_holder->is_interface()) { 172 // Could be an Object method inherited into an interface, but still a vtable call. 173 kind = CallInfo::vtable_call; 174 } else if (!resolved_klass->is_interface()) { 175 // A default or miranda method. Compute the vtable index. 176 ResourceMark rm; 177 klassVtable* vt = resolved_klass->vtable(); 178 index = LinkResolver::vtable_index_of_interface_method(resolved_klass, 179 resolved_method); 180 assert(index >= 0 , "we should have valid vtable index at this point"); 181 182 kind = CallInfo::vtable_call; 183 } else if (resolved_method->has_vtable_index()) { 184 // Can occur if an interface redeclares a method of Object. 185 186 #ifdef ASSERT 187 // Ensure that this is really the case. 188 KlassHandle object_klass = SystemDictionary::Object_klass(); 189 Method * object_resolved_method = object_klass()->vtable()->method_at(index); 190 assert(object_resolved_method->name() == resolved_method->name(), 191 "Object and interface method names should match at vtable index %d, %s != %s", 192 index, object_resolved_method->name()->as_C_string(), resolved_method->name()->as_C_string()); 193 assert(object_resolved_method->signature() == resolved_method->signature(), 194 "Object and interface method signatures should match at vtable index %d, %s != %s", 195 index, object_resolved_method->signature()->as_C_string(), resolved_method->signature()->as_C_string()); 196 #endif // ASSERT 197 198 kind = CallInfo::vtable_call; 199 } else { 200 // A regular interface call. 201 kind = CallInfo::itable_call; 202 index = resolved_method->itable_index(); 203 } 204 assert(index == Method::nonvirtual_vtable_index || index >= 0, "bad index %d", index); 205 _call_kind = kind; 206 _call_index = index; 207 _resolved_appendix = Handle(); 208 DEBUG_ONLY(verify()); 209 } 210 211 #ifdef ASSERT 212 void CallInfo::verify() { 213 switch (call_kind()) { // the meaning and allowed value of index depends on kind 214 case CallInfo::direct_call: 215 if (_call_index == Method::nonvirtual_vtable_index) break; 216 // else fall through to check vtable index: 217 case CallInfo::vtable_call: 218 assert(resolved_klass()->verify_vtable_index(_call_index), ""); 219 break; 220 case CallInfo::itable_call: 221 assert(resolved_method()->method_holder()->verify_itable_index(_call_index), ""); 222 break; 223 case CallInfo::unknown_kind: 224 assert(call_kind() != CallInfo::unknown_kind, "CallInfo must be set"); 225 break; 226 default: 227 fatal("Unexpected call kind %d", call_kind()); 228 } 229 } 230 #endif //ASSERT 231 232 #ifndef PRODUCT 233 void CallInfo::print() { 234 ResourceMark rm; 235 const char* kindstr = "unknown"; 236 switch (_call_kind) { 237 case direct_call: kindstr = "direct"; break; 238 case vtable_call: kindstr = "vtable"; break; 239 case itable_call: kindstr = "itable"; break; 240 } 241 tty->print_cr("Call %s@%d %s", kindstr, _call_index, 242 _resolved_method.is_null() ? "(none)" : _resolved_method->name_and_sig_as_C_string()); 243 } 244 #endif 245 246 //------------------------------------------------------------------------------------------------------------------------ 247 // Implementation of LinkInfo 248 249 LinkInfo::LinkInfo(const constantPoolHandle& pool, int index, TRAPS) { 250 // resolve klass 251 Klass* result = pool->klass_ref_at(index, CHECK); 252 _resolved_klass = KlassHandle(THREAD, result); 253 254 // Get name, signature, and static klass 255 _name = pool->name_ref_at(index); 256 _signature = pool->signature_ref_at(index); 257 _current_klass = KlassHandle(THREAD, pool->pool_holder()); 258 259 // Coming from the constant pool always checks access 260 _check_access = true; 261 } 262 263 char* LinkInfo::method_string() const { 264 return Method::name_and_sig_as_C_string(_resolved_klass(), _name, _signature); 265 } 266 267 #ifndef PRODUCT 268 void LinkInfo::print() { 269 ResourceMark rm; 270 tty->print_cr("Link resolved_klass=%s name=%s signature=%s current_klass=%s check_access=%s", 271 _resolved_klass->name()->as_C_string(), 272 _name->as_C_string(), 273 _signature->as_C_string(), 274 _current_klass.is_null() ? "(none)" : _current_klass->name()->as_C_string(), 275 _check_access ? "true" : "false"); 276 } 277 #endif // PRODUCT 278 //------------------------------------------------------------------------------------------------------------------------ 279 // Klass resolution 280 281 void LinkResolver::check_klass_accessability(KlassHandle ref_klass, KlassHandle sel_klass, TRAPS) { 282 Reflection::VerifyClassAccessResults vca_result = 283 Reflection::verify_class_access(ref_klass(), sel_klass(), true); 284 if (vca_result != Reflection::ACCESS_OK) { 285 ResourceMark rm(THREAD); 286 char* msg = Reflection::verify_class_access_msg(ref_klass(), sel_klass(), vca_result); 287 if (msg == NULL) { 288 Exceptions::fthrow( 289 THREAD_AND_LOCATION, 290 vmSymbols::java_lang_IllegalAccessError(), 291 "failed to access class %s from class %s", 292 sel_klass->external_name(), 293 ref_klass->external_name()); 294 } else { 295 // Use module specific message returned by verify_class_access_msg(). 296 Exceptions::fthrow( 297 THREAD_AND_LOCATION, 298 vmSymbols::java_lang_IllegalAccessError(), 299 "%s", msg); 300 } 301 } 302 } 303 304 //------------------------------------------------------------------------------------------------------------------------ 305 // Method resolution 306 // 307 // According to JVM spec. $5.4.3c & $5.4.3d 308 309 // Look up method in klasses, including static methods 310 // Then look up local default methods 311 methodHandle LinkResolver::lookup_method_in_klasses(const LinkInfo& link_info, 312 bool checkpolymorphism, 313 bool in_imethod_resolve, TRAPS) { 314 KlassHandle klass = link_info.resolved_klass(); 315 Symbol* name = link_info.name(); 316 Symbol* signature = link_info.signature(); 317 318 // Ignore overpasses so statics can be found during resolution 319 Method* result = klass->uncached_lookup_method(name, signature, Klass::skip_overpass); 320 321 if (klass->is_array_klass()) { 322 // Only consider klass and super klass for arrays 323 return methodHandle(THREAD, result); 324 } 325 326 InstanceKlass* ik = InstanceKlass::cast(klass()); 327 328 // JDK 8, JVMS 5.4.3.4: Interface method resolution should 329 // ignore static and non-public methods of java.lang.Object, 330 // like clone, finalize, registerNatives. 331 if (in_imethod_resolve && 332 result != NULL && 333 ik->is_interface() && 334 (result->is_static() || !result->is_public()) && 335 result->method_holder() == SystemDictionary::Object_klass()) { 336 result = NULL; 337 } 338 339 // Before considering default methods, check for an overpass in the 340 // current class if a method has not been found. 341 if (result == NULL) { 342 result = ik->find_method(name, signature); 343 } 344 345 if (result == NULL) { 346 Array<Method*>* default_methods = ik->default_methods(); 347 if (default_methods != NULL) { 348 result = InstanceKlass::find_method(default_methods, name, signature); 349 } 350 } 351 352 if (checkpolymorphism && result != NULL) { 353 vmIntrinsics::ID iid = result->intrinsic_id(); 354 if (MethodHandles::is_signature_polymorphic(iid)) { 355 // Do not link directly to these. The VM must produce a synthetic one using lookup_polymorphic_method. 356 return NULL; 357 } 358 } 359 return methodHandle(THREAD, result); 360 } 361 362 // returns first instance method 363 // Looks up method in classes, then looks up local default methods 364 methodHandle LinkResolver::lookup_instance_method_in_klasses(KlassHandle klass, 365 Symbol* name, 366 Symbol* signature, TRAPS) { 367 Method* result = klass->uncached_lookup_method(name, signature, Klass::find_overpass); 368 369 while (result != NULL && result->is_static() && result->method_holder()->super() != NULL) { 370 Klass* super_klass = result->method_holder()->super(); 371 result = super_klass->uncached_lookup_method(name, signature, Klass::find_overpass); 372 } 373 374 if (klass->is_array_klass()) { 375 // Only consider klass and super klass for arrays 376 return methodHandle(THREAD, result); 377 } 378 379 if (result == NULL) { 380 Array<Method*>* default_methods = InstanceKlass::cast(klass())->default_methods(); 381 if (default_methods != NULL) { 382 result = InstanceKlass::find_method(default_methods, name, signature); 383 assert(result == NULL || !result->is_static(), "static defaults not allowed"); 384 } 385 } 386 return methodHandle(THREAD, result); 387 } 388 389 int LinkResolver::vtable_index_of_interface_method(KlassHandle klass, 390 const methodHandle& resolved_method) { 391 392 int vtable_index = Method::invalid_vtable_index; 393 Symbol* name = resolved_method->name(); 394 Symbol* signature = resolved_method->signature(); 395 InstanceKlass* ik = InstanceKlass::cast(klass()); 396 397 // First check in default method array 398 if (!resolved_method->is_abstract() && ik->default_methods() != NULL) { 399 int index = InstanceKlass::find_method_index(ik->default_methods(), 400 name, signature, Klass::find_overpass, 401 Klass::find_static, Klass::find_private); 402 if (index >= 0 ) { 403 vtable_index = ik->default_vtable_indices()->at(index); 404 } 405 } 406 if (vtable_index == Method::invalid_vtable_index) { 407 // get vtable_index for miranda methods 408 ResourceMark rm; 409 klassVtable *vt = ik->vtable(); 410 vtable_index = vt->index_of_miranda(name, signature); 411 } 412 return vtable_index; 413 } 414 415 methodHandle LinkResolver::lookup_method_in_interfaces(const LinkInfo& cp_info, TRAPS) { 416 InstanceKlass *ik = InstanceKlass::cast(cp_info.resolved_klass()()); 417 418 // Specify 'true' in order to skip default methods when searching the 419 // interfaces. Function lookup_method_in_klasses() already looked for 420 // the method in the default methods table. 421 return methodHandle(THREAD, 422 ik->lookup_method_in_all_interfaces(cp_info.name(), cp_info.signature(), 423 Klass::skip_defaults)); 424 } 425 426 methodHandle LinkResolver::lookup_polymorphic_method( 427 const LinkInfo& link_info, 428 Handle *appendix_result_or_null, 429 Handle *method_type_result, 430 TRAPS) { 431 KlassHandle klass = link_info.resolved_klass(); 432 Symbol* name = link_info.name(); 433 Symbol* full_signature = link_info.signature(); 434 435 vmIntrinsics::ID iid = MethodHandles::signature_polymorphic_name_id(name); 436 if (TraceMethodHandles) { 437 ResourceMark rm(THREAD); 438 tty->print_cr("lookup_polymorphic_method iid=%s %s.%s%s", 439 vmIntrinsics::name_at(iid), klass->external_name(), 440 name->as_C_string(), full_signature->as_C_string()); 441 } 442 if ((klass() == SystemDictionary::MethodHandle_klass() || 443 klass() == SystemDictionary::VarHandle_klass()) && 444 iid != vmIntrinsics::_none) { 445 if (MethodHandles::is_signature_polymorphic_intrinsic(iid)) { 446 // Most of these do not need an up-call to Java to resolve, so can be done anywhere. 447 // Do not erase last argument type (MemberName) if it is a static linkTo method. 448 bool keep_last_arg = MethodHandles::is_signature_polymorphic_static(iid); 449 TempNewSymbol basic_signature = 450 MethodHandles::lookup_basic_type_signature(full_signature, keep_last_arg, CHECK_NULL); 451 if (TraceMethodHandles) { 452 ResourceMark rm(THREAD); 453 tty->print_cr("lookup_polymorphic_method %s %s => basic %s", 454 name->as_C_string(), 455 full_signature->as_C_string(), 456 basic_signature->as_C_string()); 457 } 458 methodHandle result = SystemDictionary::find_method_handle_intrinsic(iid, 459 basic_signature, 460 CHECK_NULL); 461 if (result.not_null()) { 462 assert(result->is_method_handle_intrinsic(), "MH.invokeBasic or MH.linkTo* intrinsic"); 463 assert(result->intrinsic_id() != vmIntrinsics::_invokeGeneric, "wrong place to find this"); 464 assert(basic_signature == result->signature(), "predict the result signature"); 465 if (TraceMethodHandles) { 466 ttyLocker ttyl; 467 tty->print("lookup_polymorphic_method => intrinsic "); 468 result->print_on(tty); 469 } 470 } 471 return result; 472 } else if (iid == vmIntrinsics::_invokeGeneric 473 && THREAD->can_call_java() 474 && appendix_result_or_null != NULL) { 475 // This is a method with type-checking semantics. 476 // We will ask Java code to spin an adapter method for it. 477 if (!MethodHandles::enabled()) { 478 // Make sure the Java part of the runtime has been booted up. 479 Klass* natives = SystemDictionary::MethodHandleNatives_klass(); 480 if (natives == NULL || InstanceKlass::cast(natives)->is_not_initialized()) { 481 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_invoke_MethodHandleNatives(), 482 Handle(), 483 Handle(), 484 true, 485 CHECK_NULL); 486 } 487 } 488 489 Handle appendix; 490 Handle method_type; 491 methodHandle result = SystemDictionary::find_method_handle_invoker( 492 klass, 493 name, 494 full_signature, 495 link_info.current_klass(), 496 &appendix, 497 &method_type, 498 CHECK_NULL); 499 if (TraceMethodHandles) { 500 ttyLocker ttyl; 501 tty->print("lookup_polymorphic_method => (via Java) "); 502 result->print_on(tty); 503 tty->print(" lookup_polymorphic_method => appendix = "); 504 if (appendix.is_null()) tty->print_cr("(none)"); 505 else appendix->print_on(tty); 506 } 507 if (result.not_null()) { 508 #ifdef ASSERT 509 ResourceMark rm(THREAD); 510 511 TempNewSymbol basic_signature = 512 MethodHandles::lookup_basic_type_signature(full_signature, CHECK_NULL); 513 int actual_size_of_params = result->size_of_parameters(); 514 int expected_size_of_params = ArgumentSizeComputer(basic_signature).size(); 515 // +1 for MethodHandle.this, +1 for trailing MethodType 516 if (!MethodHandles::is_signature_polymorphic_static(iid)) expected_size_of_params += 1; 517 if (appendix.not_null()) expected_size_of_params += 1; 518 if (actual_size_of_params != expected_size_of_params) { 519 tty->print_cr("*** basic_signature=%s", basic_signature->as_C_string()); 520 tty->print_cr("*** result for %s: ", vmIntrinsics::name_at(iid)); 521 result->print(); 522 } 523 assert(actual_size_of_params == expected_size_of_params, 524 "%d != %d", actual_size_of_params, expected_size_of_params); 525 #endif //ASSERT 526 527 assert(appendix_result_or_null != NULL, ""); 528 (*appendix_result_or_null) = appendix; 529 (*method_type_result) = method_type; 530 } 531 return result; 532 } 533 } 534 return NULL; 535 } 536 537 void LinkResolver::check_method_accessability(KlassHandle ref_klass, 538 KlassHandle resolved_klass, 539 KlassHandle sel_klass, 540 const methodHandle& sel_method, 541 TRAPS) { 542 543 AccessFlags flags = sel_method->access_flags(); 544 545 // Special case: arrays always override "clone". JVMS 2.15. 546 // If the resolved klass is an array class, and the declaring class 547 // is java.lang.Object and the method is "clone", set the flags 548 // to public. 549 // 550 // We'll check for the method name first, as that's most likely 551 // to be false (so we'll short-circuit out of these tests). 552 if (sel_method->name() == vmSymbols::clone_name() && 553 sel_klass() == SystemDictionary::Object_klass() && 554 resolved_klass->is_array_klass()) { 555 // We need to change "protected" to "public". 556 assert(flags.is_protected(), "clone not protected?"); 557 jint new_flags = flags.as_int(); 558 new_flags = new_flags & (~JVM_ACC_PROTECTED); 559 new_flags = new_flags | JVM_ACC_PUBLIC; 560 flags.set_flags(new_flags); 561 } 562 // assert(extra_arg_result_or_null != NULL, "must be able to return extra argument"); 563 564 if (!Reflection::verify_field_access(ref_klass(), 565 resolved_klass(), 566 sel_klass(), 567 flags, 568 true)) { 569 ResourceMark rm(THREAD); 570 Exceptions::fthrow( 571 THREAD_AND_LOCATION, 572 vmSymbols::java_lang_IllegalAccessError(), 573 "tried to access method %s.%s%s from class %s", 574 sel_klass->external_name(), 575 sel_method->name()->as_C_string(), 576 sel_method->signature()->as_C_string(), 577 ref_klass->external_name() 578 ); 579 return; 580 } 581 } 582 583 methodHandle LinkResolver::resolve_method_statically(Bytecodes::Code code, 584 const constantPoolHandle& pool, int index, TRAPS) { 585 // This method is used only 586 // (1) in C2 from InlineTree::ok_to_inline (via ciMethod::check_call), 587 // and 588 // (2) in Bytecode_invoke::static_target 589 // It appears to fail when applied to an invokeinterface call site. 590 // FIXME: Remove this method and ciMethod::check_call; refactor to use the other LinkResolver entry points. 591 // resolve klass 592 KlassHandle resolved_klass; 593 if (code == Bytecodes::_invokedynamic) { 594 resolved_klass = SystemDictionary::MethodHandle_klass(); 595 Symbol* method_name = vmSymbols::invoke_name(); 596 Symbol* method_signature = pool->signature_ref_at(index); 597 KlassHandle current_klass(THREAD, pool->pool_holder()); 598 LinkInfo link_info(resolved_klass, method_name, method_signature, current_klass); 599 return resolve_method(link_info, /*require_methodref*/false, THREAD); 600 } 601 602 LinkInfo link_info(pool, index, CHECK_NULL); 603 resolved_klass = link_info.resolved_klass(); 604 605 if (pool->has_preresolution() 606 || (resolved_klass() == SystemDictionary::MethodHandle_klass() && 607 MethodHandles::is_signature_polymorphic_name(resolved_klass(), link_info.name()))) { 608 Method* result = ConstantPool::method_at_if_loaded(pool, index); 609 if (result != NULL) { 610 return methodHandle(THREAD, result); 611 } 612 } 613 614 if (code == Bytecodes::_invokeinterface) { 615 return resolve_interface_method(link_info, code, THREAD); 616 } else if (code == Bytecodes::_invokevirtual) { 617 return resolve_method(link_info, /*require_methodref*/true, THREAD); 618 } else if (!resolved_klass->is_interface()) { 619 return resolve_method(link_info, /*require_methodref*/false, THREAD); 620 } else { 621 return resolve_interface_method(link_info, code, THREAD); 622 } 623 } 624 625 // Check and print a loader constraint violation message for method or interface method 626 void LinkResolver::check_method_loader_constraints(const LinkInfo& link_info, 627 const methodHandle& resolved_method, 628 const char* method_type, TRAPS) { 629 Handle current_loader(THREAD, link_info.current_klass()->class_loader()); 630 Handle resolved_loader(THREAD, resolved_method->method_holder()->class_loader()); 631 632 ResourceMark rm(THREAD); 633 Symbol* failed_type_symbol = 634 SystemDictionary::check_signature_loaders(link_info.signature(), current_loader, 635 resolved_loader, true, CHECK); 636 if (failed_type_symbol != NULL) { 637 const char* msg = "loader constraint violation: when resolving %s" 638 " \"%s\" the class loader (instance of %s) of the current class, %s," 639 " and the class loader (instance of %s) for the method's defining class, %s, have" 640 " different Class objects for the type %s used in the signature"; 641 char* sig = link_info.method_string(); 642 const char* loader1_name = SystemDictionary::loader_name(current_loader()); 643 char* current = link_info.current_klass()->name()->as_C_string(); 644 const char* loader2_name = SystemDictionary::loader_name(resolved_loader()); 645 char* target = resolved_method->method_holder()->name()->as_C_string(); 646 char* failed_type_name = failed_type_symbol->as_C_string(); 647 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1_name) + 648 strlen(current) + strlen(loader2_name) + strlen(target) + 649 strlen(failed_type_name) + strlen(method_type) + 1; 650 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); 651 jio_snprintf(buf, buflen, msg, method_type, sig, loader1_name, current, loader2_name, 652 target, failed_type_name); 653 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); 654 } 655 } 656 657 void LinkResolver::check_field_loader_constraints(Symbol* field, Symbol* sig, 658 KlassHandle current_klass, 659 KlassHandle sel_klass, TRAPS) { 660 Handle ref_loader(THREAD, current_klass->class_loader()); 661 Handle sel_loader(THREAD, sel_klass->class_loader()); 662 663 ResourceMark rm(THREAD); // needed for check_signature_loaders 664 Symbol* failed_type_symbol = 665 SystemDictionary::check_signature_loaders(sig, 666 ref_loader, sel_loader, 667 false, 668 CHECK); 669 if (failed_type_symbol != NULL) { 670 const char* msg = "loader constraint violation: when resolving field" 671 " \"%s\" the class loader (instance of %s) of the referring class, " 672 "%s, and the class loader (instance of %s) for the field's resolved " 673 "type, %s, have different Class objects for that type"; 674 char* field_name = field->as_C_string(); 675 const char* loader1_name = SystemDictionary::loader_name(ref_loader()); 676 char* sel = sel_klass->name()->as_C_string(); 677 const char* loader2_name = SystemDictionary::loader_name(sel_loader()); 678 char* failed_type_name = failed_type_symbol->as_C_string(); 679 size_t buflen = strlen(msg) + strlen(field_name) + strlen(loader1_name) + 680 strlen(sel) + strlen(loader2_name) + strlen(failed_type_name) + 1; 681 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); 682 jio_snprintf(buf, buflen, msg, field_name, loader1_name, sel, loader2_name, 683 failed_type_name); 684 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); 685 } 686 } 687 688 methodHandle LinkResolver::resolve_method(const LinkInfo& link_info, 689 bool require_methodref, TRAPS) { 690 691 Handle nested_exception; 692 KlassHandle resolved_klass = link_info.resolved_klass(); 693 694 // 1. check if methodref required, that resolved_klass is not interfacemethodref 695 if (require_methodref && resolved_klass->is_interface()) { 696 ResourceMark rm(THREAD); 697 char buf[200]; 698 jio_snprintf(buf, sizeof(buf), "Found interface %s, but class was expected", 699 resolved_klass()->external_name()); 700 THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 701 } 702 703 // 2. lookup method in resolved klass and its super klasses 704 methodHandle resolved_method = lookup_method_in_klasses(link_info, true, false, CHECK_NULL); 705 706 if (resolved_method.is_null() && !resolved_klass->is_array_klass()) { // not found in the class hierarchy 707 // 3. lookup method in all the interfaces implemented by the resolved klass 708 resolved_method = lookup_method_in_interfaces(link_info, CHECK_NULL); 709 710 if (resolved_method.is_null()) { 711 // JSR 292: see if this is an implicitly generated method MethodHandle.linkToVirtual(*...), etc 712 resolved_method = lookup_polymorphic_method(link_info, (Handle*)NULL, (Handle*)NULL, THREAD); 713 if (HAS_PENDING_EXCEPTION) { 714 nested_exception = Handle(THREAD, PENDING_EXCEPTION); 715 CLEAR_PENDING_EXCEPTION; 716 } 717 } 718 } 719 720 if (resolved_method.is_null()) { 721 // 4. method lookup failed 722 ResourceMark rm(THREAD); 723 THROW_MSG_CAUSE_(vmSymbols::java_lang_NoSuchMethodError(), 724 Method::name_and_sig_as_C_string(resolved_klass(), 725 link_info.name(), 726 link_info.signature()), 727 nested_exception, NULL); 728 } 729 730 // 5. access checks, access checking may be turned off when calling from within the VM. 731 KlassHandle current_klass = link_info.current_klass(); 732 if (link_info.check_access()) { 733 assert(current_klass.not_null() , "current_klass should not be null"); 734 735 // check if method can be accessed by the referring class 736 check_method_accessability(current_klass, 737 resolved_klass, 738 KlassHandle(THREAD, resolved_method->method_holder()), 739 resolved_method, 740 CHECK_NULL); 741 742 // check loader constraints 743 check_method_loader_constraints(link_info, resolved_method, "method", CHECK_NULL); 744 } 745 746 return resolved_method; 747 } 748 749 static void trace_method_resolution(const char* prefix, 750 KlassHandle klass, 751 KlassHandle resolved_klass, 752 const methodHandle& method, 753 bool logitables, 754 int index = -1) { 755 #ifndef PRODUCT 756 ResourceMark rm; 757 outputStream* st; 758 if (logitables) { 759 st = Log(itables)::trace_stream(); 760 } else { 761 st = Log(vtables)::trace_stream(); 762 } 763 st->print("%s%s, compile-time-class:%s, method:%s, method_holder:%s, access_flags: ", 764 prefix, 765 (klass.is_null() ? "<NULL>" : klass->internal_name()), 766 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), 767 Method::name_and_sig_as_C_string(resolved_klass(), 768 method->name(), 769 method->signature()), 770 method->method_holder()->internal_name()); 771 method->print_linkage_flags(st); 772 if (index != -1) { 773 st->print("vtable_index:%d", index); 774 } 775 st->cr(); 776 #endif // PRODUCT 777 } 778 779 // Do linktime resolution of a method in the interface within the context of the specied bytecode. 780 methodHandle LinkResolver::resolve_interface_method(const LinkInfo& link_info, Bytecodes::Code code, TRAPS) { 781 782 KlassHandle resolved_klass = link_info.resolved_klass(); 783 784 // check if klass is interface 785 if (!resolved_klass->is_interface()) { 786 ResourceMark rm(THREAD); 787 char buf[200]; 788 jio_snprintf(buf, sizeof(buf), "Found class %s, but interface was expected", resolved_klass()->external_name()); 789 THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 790 } 791 792 // lookup method in this interface or its super, java.lang.Object 793 // JDK8: also look for static methods 794 methodHandle resolved_method = lookup_method_in_klasses(link_info, false, true, CHECK_NULL); 795 796 if (resolved_method.is_null() && !resolved_klass->is_array_klass()) { 797 // lookup method in all the super-interfaces 798 resolved_method = lookup_method_in_interfaces(link_info, CHECK_NULL); 799 } 800 801 if (resolved_method.is_null()) { 802 // no method found 803 ResourceMark rm(THREAD); 804 THROW_MSG_NULL(vmSymbols::java_lang_NoSuchMethodError(), 805 Method::name_and_sig_as_C_string(resolved_klass(), 806 link_info.name(), 807 link_info.signature())); 808 } 809 810 if (link_info.check_access()) { 811 // JDK8 adds non-public interface methods, and accessability check requirement 812 KlassHandle current_klass = link_info.current_klass(); 813 814 assert(current_klass.not_null() , "current_klass should not be null"); 815 816 // check if method can be accessed by the referring class 817 check_method_accessability(current_klass, 818 resolved_klass, 819 KlassHandle(THREAD, resolved_method->method_holder()), 820 resolved_method, 821 CHECK_NULL); 822 823 check_method_loader_constraints(link_info, resolved_method, "interface method", CHECK_NULL); 824 } 825 826 if (code != Bytecodes::_invokestatic && resolved_method->is_static()) { 827 ResourceMark rm(THREAD); 828 char buf[200]; 829 jio_snprintf(buf, sizeof(buf), "Expected instance not static method %s", 830 Method::name_and_sig_as_C_string(resolved_klass(), 831 resolved_method->name(), resolved_method->signature())); 832 THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 833 } 834 835 if (code == Bytecodes::_invokeinterface && resolved_method->is_private()) { 836 ResourceMark rm(THREAD); 837 char buf[200]; 838 839 KlassHandle current_klass = link_info.current_klass(); 840 jio_snprintf(buf, sizeof(buf), "private interface method requires invokespecial, not invokeinterface: method %s, caller-class:%s", 841 Method::name_and_sig_as_C_string(resolved_klass(), 842 resolved_method->name(), 843 resolved_method->signature()), 844 (current_klass.is_null() ? "<NULL>" : current_klass->internal_name())); 845 THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 846 } 847 848 if (log_develop_is_enabled(Trace, itables)) { 849 trace_method_resolution("invokeinterface resolved method: caller-class", 850 link_info.current_klass(), resolved_klass, 851 resolved_method, true); 852 } 853 854 return resolved_method; 855 } 856 857 //------------------------------------------------------------------------------------------------------------------------ 858 // Field resolution 859 860 void LinkResolver::check_field_accessability(KlassHandle ref_klass, 861 KlassHandle resolved_klass, 862 KlassHandle sel_klass, 863 const fieldDescriptor& fd, 864 TRAPS) { 865 if (!Reflection::verify_field_access(ref_klass(), 866 resolved_klass(), 867 sel_klass(), 868 fd.access_flags(), 869 true)) { 870 ResourceMark rm(THREAD); 871 Exceptions::fthrow( 872 THREAD_AND_LOCATION, 873 vmSymbols::java_lang_IllegalAccessError(), 874 "tried to access field %s.%s from class %s", 875 sel_klass->external_name(), 876 fd.name()->as_C_string(), 877 ref_klass->external_name() 878 ); 879 return; 880 } 881 } 882 883 void LinkResolver::resolve_field_access(fieldDescriptor& fd, const constantPoolHandle& pool, int index, Bytecodes::Code byte, TRAPS) { 884 LinkInfo link_info(pool, index, CHECK); 885 resolve_field(fd, link_info, byte, true, CHECK); 886 } 887 888 void LinkResolver::resolve_field(fieldDescriptor& fd, 889 const LinkInfo& link_info, 890 Bytecodes::Code byte, bool initialize_class, 891 TRAPS) { 892 assert(byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic || 893 byte == Bytecodes::_getfield || byte == Bytecodes::_putfield || 894 byte == Bytecodes::_nofast_getfield || byte == Bytecodes::_nofast_putfield || 895 (byte == Bytecodes::_nop && !link_info.check_access()), "bad field access bytecode"); 896 897 bool is_static = (byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic); 898 bool is_put = (byte == Bytecodes::_putfield || byte == Bytecodes::_putstatic || byte == Bytecodes::_nofast_putfield); 899 // Check if there's a resolved klass containing the field 900 KlassHandle resolved_klass = link_info.resolved_klass(); 901 Symbol* field = link_info.name(); 902 Symbol* sig = link_info.signature(); 903 904 if (resolved_klass.is_null()) { 905 ResourceMark rm(THREAD); 906 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string()); 907 } 908 909 // Resolve instance field 910 KlassHandle sel_klass(THREAD, resolved_klass->find_field(field, sig, &fd)); 911 // check if field exists; i.e., if a klass containing the field def has been selected 912 if (sel_klass.is_null()) { 913 ResourceMark rm(THREAD); 914 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string()); 915 } 916 917 if (!link_info.check_access()) 918 // Access checking may be turned off when calling from within the VM. 919 return; 920 921 // check access 922 KlassHandle current_klass = link_info.current_klass(); 923 check_field_accessability(current_klass, resolved_klass, sel_klass, fd, CHECK); 924 925 // check for errors 926 if (is_static != fd.is_static()) { 927 ResourceMark rm(THREAD); 928 char msg[200]; 929 jio_snprintf(msg, sizeof(msg), "Expected %s field %s.%s", is_static ? "static" : "non-static", resolved_klass()->external_name(), fd.name()->as_C_string()); 930 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), msg); 931 } 932 933 // Final fields can only be accessed from its own class. 934 if (is_put && fd.access_flags().is_final() && sel_klass() != current_klass()) { 935 THROW(vmSymbols::java_lang_IllegalAccessError()); 936 } 937 938 // initialize resolved_klass if necessary 939 // note 1: the klass which declared the field must be initialized (i.e, sel_klass) 940 // according to the newest JVM spec (5.5, p.170) - was bug (gri 7/28/99) 941 // 942 // note 2: we don't want to force initialization if we are just checking 943 // if the field access is legal; e.g., during compilation 944 if (is_static && initialize_class) { 945 sel_klass->initialize(CHECK); 946 } 947 948 if (sel_klass() != current_klass()) { 949 check_field_loader_constraints(field, sig, current_klass, sel_klass, CHECK); 950 } 951 952 // return information. note that the klass is set to the actual klass containing the 953 // field, otherwise access of static fields in superclasses will not work. 954 } 955 956 957 //------------------------------------------------------------------------------------------------------------------------ 958 // Invoke resolution 959 // 960 // Naming conventions: 961 // 962 // resolved_method the specified method (i.e., static receiver specified via constant pool index) 963 // sel_method the selected method (selected via run-time lookup; e.g., based on dynamic receiver class) 964 // resolved_klass the specified klass (i.e., specified via constant pool index) 965 // recv_klass the receiver klass 966 967 968 void LinkResolver::resolve_static_call(CallInfo& result, 969 const LinkInfo& link_info, 970 bool initialize_class, TRAPS) { 971 methodHandle resolved_method = linktime_resolve_static_method(link_info, CHECK); 972 973 // The resolved class can change as a result of this resolution. 974 KlassHandle resolved_klass = KlassHandle(THREAD, resolved_method->method_holder()); 975 976 Method* save_resolved_method = resolved_method(); 977 // Initialize klass (this should only happen if everything is ok) 978 if (initialize_class && resolved_klass->should_be_initialized()) { 979 resolved_klass->initialize(CHECK); 980 // Use updated LinkInfo (to reresolve with resolved_klass as method_holder?) 981 LinkInfo new_info(resolved_klass, link_info.name(), link_info.signature(), 982 link_info.current_klass(), link_info.check_access()); 983 resolved_method = linktime_resolve_static_method(new_info, CHECK); 984 } 985 986 assert(save_resolved_method == resolved_method(), "does this change?"); 987 // setup result 988 result.set_static(resolved_klass, resolved_method, CHECK); 989 } 990 991 // throws linktime exceptions 992 methodHandle LinkResolver::linktime_resolve_static_method(const LinkInfo& link_info, TRAPS) { 993 994 KlassHandle resolved_klass = link_info.resolved_klass(); 995 methodHandle resolved_method; 996 if (!resolved_klass->is_interface()) { 997 resolved_method = resolve_method(link_info, /*require_methodref*/false, CHECK_NULL); 998 } else { 999 resolved_method = resolve_interface_method(link_info, Bytecodes::_invokestatic, CHECK_NULL); 1000 } 1001 assert(resolved_method->name() != vmSymbols::class_initializer_name(), "should have been checked in verifier"); 1002 1003 // check if static 1004 if (!resolved_method->is_static()) { 1005 ResourceMark rm(THREAD); 1006 char buf[200]; 1007 jio_snprintf(buf, sizeof(buf), "Expected static method %s", Method::name_and_sig_as_C_string(resolved_klass(), 1008 resolved_method->name(), 1009 resolved_method->signature())); 1010 THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 1011 } 1012 return resolved_method; 1013 } 1014 1015 1016 void LinkResolver::resolve_special_call(CallInfo& result, 1017 const LinkInfo& link_info, 1018 TRAPS) { 1019 methodHandle resolved_method = linktime_resolve_special_method(link_info, CHECK); 1020 runtime_resolve_special_method(result, resolved_method, 1021 link_info.resolved_klass(), 1022 link_info.current_klass(), 1023 link_info.check_access(), CHECK); 1024 } 1025 1026 // throws linktime exceptions 1027 methodHandle LinkResolver::linktime_resolve_special_method(const LinkInfo& link_info, 1028 TRAPS) { 1029 1030 // Invokespecial is called for multiple special reasons: 1031 // <init> 1032 // local private method invocation, for classes and interfaces 1033 // superclass.method, which can also resolve to a default method 1034 // and the selected method is recalculated relative to the direct superclass 1035 // superinterface.method, which explicitly does not check shadowing 1036 KlassHandle resolved_klass = link_info.resolved_klass(); 1037 methodHandle resolved_method; 1038 1039 if (!resolved_klass->is_interface()) { 1040 resolved_method = resolve_method(link_info, /*require_methodref*/false, CHECK_NULL); 1041 } else { 1042 resolved_method = resolve_interface_method(link_info, Bytecodes::_invokespecial, CHECK_NULL); 1043 } 1044 1045 // check if method name is <init>, that it is found in same klass as static type 1046 if (resolved_method->name() == vmSymbols::object_initializer_name() && 1047 resolved_method->method_holder() != resolved_klass()) { 1048 ResourceMark rm(THREAD); 1049 Exceptions::fthrow( 1050 THREAD_AND_LOCATION, 1051 vmSymbols::java_lang_NoSuchMethodError(), 1052 "%s: method %s%s not found", 1053 resolved_klass->external_name(), 1054 resolved_method->name()->as_C_string(), 1055 resolved_method->signature()->as_C_string() 1056 ); 1057 return NULL; 1058 } 1059 1060 // check if invokespecial's interface method reference is in an indirect superinterface 1061 KlassHandle current_klass = link_info.current_klass(); 1062 if (!current_klass.is_null() && resolved_klass->is_interface()) { 1063 Klass *klass_to_check = !InstanceKlass::cast(current_klass())->is_anonymous() ? 1064 current_klass() : 1065 InstanceKlass::cast(current_klass())->host_klass(); 1066 // Disable verification for the dynamically-generated reflection bytecodes. 1067 bool is_reflect = klass_to_check->is_subclass_of( 1068 SystemDictionary::reflect_MagicAccessorImpl_klass()); 1069 1070 if (!is_reflect && 1071 !InstanceKlass::cast(klass_to_check)->is_same_or_direct_interface(resolved_klass())) { 1072 ResourceMark rm(THREAD); 1073 char buf[200]; 1074 jio_snprintf(buf, sizeof(buf), 1075 "Interface method reference: %s, is in an indirect superinterface of %s", 1076 Method::name_and_sig_as_C_string(resolved_klass(), 1077 resolved_method->name(), 1078 resolved_method->signature()), 1079 current_klass->external_name()); 1080 THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 1081 } 1082 } 1083 1084 // check if not static 1085 if (resolved_method->is_static()) { 1086 ResourceMark rm(THREAD); 1087 char buf[200]; 1088 jio_snprintf(buf, sizeof(buf), 1089 "Expecting non-static method %s", 1090 Method::name_and_sig_as_C_string(resolved_klass(), 1091 resolved_method->name(), 1092 resolved_method->signature())); 1093 THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 1094 } 1095 1096 if (log_develop_is_enabled(Trace, itables)) { 1097 trace_method_resolution("invokespecial resolved method: caller-class:", 1098 current_klass, resolved_klass, resolved_method, true); 1099 } 1100 1101 return resolved_method; 1102 } 1103 1104 // throws runtime exceptions 1105 void LinkResolver::runtime_resolve_special_method(CallInfo& result, 1106 const methodHandle& resolved_method, 1107 KlassHandle resolved_klass, 1108 KlassHandle current_klass, 1109 bool check_access, TRAPS) { 1110 1111 // resolved method is selected method unless we have an old-style lookup 1112 // for a superclass method 1113 // Invokespecial for a superinterface, resolved method is selected method, 1114 // no checks for shadowing 1115 methodHandle sel_method(THREAD, resolved_method()); 1116 1117 // check if this is an old-style super call and do a new lookup if so 1118 { KlassHandle method_klass = KlassHandle(THREAD, 1119 resolved_method->method_holder()); 1120 1121 if (check_access && 1122 // a) check if ACC_SUPER flag is set for the current class 1123 (current_klass->is_super() || !AllowNonVirtualCalls) && 1124 // b) check if the class of the resolved_klass is a superclass 1125 // (not supertype in order to exclude interface classes) of the current class. 1126 // This check is not performed for super.invoke for interface methods 1127 // in super interfaces. 1128 current_klass->is_subclass_of(resolved_klass()) && 1129 current_klass() != resolved_klass() && 1130 // c) check if the method is not <init> 1131 resolved_method->name() != vmSymbols::object_initializer_name()) { 1132 // Lookup super method 1133 KlassHandle super_klass(THREAD, current_klass->super()); 1134 sel_method = lookup_instance_method_in_klasses(super_klass, 1135 resolved_method->name(), 1136 resolved_method->signature(), CHECK); 1137 // check if found 1138 if (sel_method.is_null()) { 1139 ResourceMark rm(THREAD); 1140 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), 1141 Method::name_and_sig_as_C_string(resolved_klass(), 1142 resolved_method->name(), 1143 resolved_method->signature())); 1144 } 1145 } 1146 } 1147 1148 // check if not static 1149 if (sel_method->is_static()) { 1150 ResourceMark rm(THREAD); 1151 char buf[200]; 1152 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", Method::name_and_sig_as_C_string(resolved_klass(), 1153 resolved_method->name(), 1154 resolved_method->signature())); 1155 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 1156 } 1157 1158 // check if abstract 1159 if (sel_method->is_abstract()) { 1160 ResourceMark rm(THREAD); 1161 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), 1162 Method::name_and_sig_as_C_string(resolved_klass(), 1163 sel_method->name(), 1164 sel_method->signature())); 1165 } 1166 1167 if (log_develop_is_enabled(Trace, itables)) { 1168 trace_method_resolution("invokespecial selected method: resolved-class:", 1169 resolved_klass, resolved_klass, sel_method, true); 1170 } 1171 1172 // setup result 1173 result.set_static(resolved_klass, sel_method, CHECK); 1174 } 1175 1176 void LinkResolver::resolve_virtual_call(CallInfo& result, Handle recv, KlassHandle receiver_klass, 1177 const LinkInfo& link_info, 1178 bool check_null_and_abstract, TRAPS) { 1179 methodHandle resolved_method = linktime_resolve_virtual_method(link_info, CHECK); 1180 runtime_resolve_virtual_method(result, resolved_method, 1181 link_info.resolved_klass(), 1182 recv, receiver_klass, 1183 check_null_and_abstract, CHECK); 1184 } 1185 1186 // throws linktime exceptions 1187 methodHandle LinkResolver::linktime_resolve_virtual_method(const LinkInfo& link_info, 1188 TRAPS) { 1189 // normal method resolution 1190 methodHandle resolved_method = resolve_method(link_info, /*require_methodref*/true, CHECK_NULL); 1191 1192 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier"); 1193 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier"); 1194 1195 // check if private interface method 1196 KlassHandle resolved_klass = link_info.resolved_klass(); 1197 KlassHandle current_klass = link_info.current_klass(); 1198 1199 if (resolved_klass->is_interface() && resolved_method->is_private()) { 1200 ResourceMark rm(THREAD); 1201 char buf[200]; 1202 jio_snprintf(buf, sizeof(buf), "private interface method requires invokespecial, not invokevirtual: method %s, caller-class:%s", 1203 Method::name_and_sig_as_C_string(resolved_klass(), 1204 resolved_method->name(), 1205 resolved_method->signature()), 1206 (current_klass.is_null() ? "<NULL>" : current_klass->internal_name())); 1207 THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 1208 } 1209 1210 // check if not static 1211 if (resolved_method->is_static()) { 1212 ResourceMark rm(THREAD); 1213 char buf[200]; 1214 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", Method::name_and_sig_as_C_string(resolved_klass(), 1215 resolved_method->name(), 1216 resolved_method->signature())); 1217 THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 1218 } 1219 1220 if (log_develop_is_enabled(Trace, vtables)) { 1221 trace_method_resolution("invokevirtual resolved method: caller-class:", 1222 current_klass, resolved_klass, resolved_method, false); 1223 } 1224 1225 return resolved_method; 1226 } 1227 1228 // throws runtime exceptions 1229 void LinkResolver::runtime_resolve_virtual_method(CallInfo& result, 1230 const methodHandle& resolved_method, 1231 KlassHandle resolved_klass, 1232 Handle recv, 1233 KlassHandle recv_klass, 1234 bool check_null_and_abstract, 1235 TRAPS) { 1236 1237 // setup default return values 1238 int vtable_index = Method::invalid_vtable_index; 1239 methodHandle selected_method; 1240 1241 assert(recv.is_null() || recv->is_oop(), "receiver is not an oop"); 1242 1243 // runtime method resolution 1244 if (check_null_and_abstract && recv.is_null()) { // check if receiver exists 1245 THROW(vmSymbols::java_lang_NullPointerException()); 1246 } 1247 1248 // Virtual methods cannot be resolved before its klass has been linked, for otherwise the Method*'s 1249 // has not been rewritten, and the vtable initialized. Make sure to do this after the nullcheck, since 1250 // a missing receiver might result in a bogus lookup. 1251 assert(resolved_method->method_holder()->is_linked(), "must be linked"); 1252 1253 // do lookup based on receiver klass using the vtable index 1254 if (resolved_method->method_holder()->is_interface()) { // default or miranda method 1255 vtable_index = vtable_index_of_interface_method(resolved_klass, 1256 resolved_method); 1257 assert(vtable_index >= 0 , "we should have valid vtable index at this point"); 1258 1259 selected_method = methodHandle(THREAD, recv_klass->method_at_vtable(vtable_index)); 1260 } else { 1261 // at this point we are sure that resolved_method is virtual and not 1262 // a default or miranda method; therefore, it must have a valid vtable index. 1263 assert(!resolved_method->has_itable_index(), ""); 1264 vtable_index = resolved_method->vtable_index(); 1265 // We could get a negative vtable_index for final methods, 1266 // because as an optimization they are they are never put in the vtable, 1267 // unless they override an existing method. 1268 // If we do get a negative, it means the resolved method is the the selected 1269 // method, and it can never be changed by an override. 1270 if (vtable_index == Method::nonvirtual_vtable_index) { 1271 assert(resolved_method->can_be_statically_bound(), "cannot override this method"); 1272 selected_method = resolved_method; 1273 } else { 1274 selected_method = methodHandle(THREAD, recv_klass->method_at_vtable(vtable_index)); 1275 } 1276 } 1277 1278 // check if method exists 1279 if (selected_method.is_null()) { 1280 ResourceMark rm(THREAD); 1281 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), 1282 Method::name_and_sig_as_C_string(resolved_klass(), 1283 resolved_method->name(), 1284 resolved_method->signature())); 1285 } 1286 1287 // check if abstract 1288 if (check_null_and_abstract && selected_method->is_abstract()) { 1289 ResourceMark rm(THREAD); 1290 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), 1291 Method::name_and_sig_as_C_string(resolved_klass(), 1292 selected_method->name(), 1293 selected_method->signature())); 1294 } 1295 1296 if (log_develop_is_enabled(Trace, vtables)) { 1297 trace_method_resolution("invokevirtual selected method: receiver-class:", 1298 recv_klass, resolved_klass, selected_method, 1299 false, vtable_index); 1300 } 1301 // setup result 1302 result.set_virtual(resolved_klass, recv_klass, resolved_method, selected_method, vtable_index, CHECK); 1303 } 1304 1305 void LinkResolver::resolve_interface_call(CallInfo& result, Handle recv, KlassHandle recv_klass, 1306 const LinkInfo& link_info, 1307 bool check_null_and_abstract, TRAPS) { 1308 // throws linktime exceptions 1309 methodHandle resolved_method = linktime_resolve_interface_method(link_info, CHECK); 1310 runtime_resolve_interface_method(result, resolved_method,link_info.resolved_klass(), 1311 recv, recv_klass, check_null_and_abstract, CHECK); 1312 } 1313 1314 methodHandle LinkResolver::linktime_resolve_interface_method(const LinkInfo& link_info, 1315 TRAPS) { 1316 // normal interface method resolution 1317 methodHandle resolved_method = resolve_interface_method(link_info, Bytecodes::_invokeinterface, CHECK_NULL); 1318 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier"); 1319 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier"); 1320 1321 return resolved_method; 1322 } 1323 1324 // throws runtime exceptions 1325 void LinkResolver::runtime_resolve_interface_method(CallInfo& result, 1326 const methodHandle& resolved_method, 1327 KlassHandle resolved_klass, 1328 Handle recv, 1329 KlassHandle recv_klass, 1330 bool check_null_and_abstract, TRAPS) { 1331 // check if receiver exists 1332 if (check_null_and_abstract && recv.is_null()) { 1333 THROW(vmSymbols::java_lang_NullPointerException()); 1334 } 1335 1336 // check if receiver klass implements the resolved interface 1337 if (!recv_klass->is_subtype_of(resolved_klass())) { 1338 ResourceMark rm(THREAD); 1339 char buf[200]; 1340 jio_snprintf(buf, sizeof(buf), "Class %s does not implement the requested interface %s", 1341 recv_klass()->external_name(), 1342 resolved_klass()->external_name()); 1343 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); 1344 } 1345 1346 // do lookup based on receiver klass 1347 // This search must match the linktime preparation search for itable initialization 1348 // to correctly enforce loader constraints for interface method inheritance 1349 methodHandle sel_method = lookup_instance_method_in_klasses(recv_klass, 1350 resolved_method->name(), 1351 resolved_method->signature(), CHECK); 1352 if (sel_method.is_null() && !check_null_and_abstract) { 1353 // In theory this is a harmless placeholder value, but 1354 // in practice leaving in null affects the nsk default method tests. 1355 // This needs further study. 1356 sel_method = resolved_method; 1357 } 1358 // check if method exists 1359 if (sel_method.is_null()) { 1360 ResourceMark rm(THREAD); 1361 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), 1362 Method::name_and_sig_as_C_string(recv_klass(), 1363 resolved_method->name(), 1364 resolved_method->signature())); 1365 } 1366 // check access 1367 // Throw Illegal Access Error if sel_method is not public. 1368 if (!sel_method->is_public()) { 1369 ResourceMark rm(THREAD); 1370 THROW_MSG(vmSymbols::java_lang_IllegalAccessError(), 1371 Method::name_and_sig_as_C_string(recv_klass(), 1372 sel_method->name(), 1373 sel_method->signature())); 1374 } 1375 // check if abstract 1376 if (check_null_and_abstract && sel_method->is_abstract()) { 1377 ResourceMark rm(THREAD); 1378 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), 1379 Method::name_and_sig_as_C_string(recv_klass(), 1380 sel_method->name(), 1381 sel_method->signature())); 1382 } 1383 1384 if (log_develop_is_enabled(Trace, itables)) { 1385 trace_method_resolution("invokeinterface selected method: receiver-class", 1386 recv_klass, resolved_klass, sel_method, true); 1387 } 1388 // setup result 1389 if (!resolved_method->has_itable_index()) { 1390 int vtable_index = resolved_method->vtable_index(); 1391 assert(vtable_index == sel_method->vtable_index(), "sanity check"); 1392 result.set_virtual(resolved_klass, recv_klass, resolved_method, sel_method, vtable_index, CHECK); 1393 } else { 1394 int itable_index = resolved_method()->itable_index(); 1395 result.set_interface(resolved_klass, recv_klass, resolved_method, sel_method, itable_index, CHECK); 1396 } 1397 } 1398 1399 1400 methodHandle LinkResolver::linktime_resolve_interface_method_or_null( 1401 const LinkInfo& link_info) { 1402 EXCEPTION_MARK; 1403 methodHandle method_result = linktime_resolve_interface_method(link_info, THREAD); 1404 if (HAS_PENDING_EXCEPTION) { 1405 CLEAR_PENDING_EXCEPTION; 1406 return methodHandle(); 1407 } else { 1408 return method_result; 1409 } 1410 } 1411 1412 methodHandle LinkResolver::linktime_resolve_virtual_method_or_null( 1413 const LinkInfo& link_info) { 1414 EXCEPTION_MARK; 1415 methodHandle method_result = linktime_resolve_virtual_method(link_info, THREAD); 1416 if (HAS_PENDING_EXCEPTION) { 1417 CLEAR_PENDING_EXCEPTION; 1418 return methodHandle(); 1419 } else { 1420 return method_result; 1421 } 1422 } 1423 1424 methodHandle LinkResolver::resolve_virtual_call_or_null( 1425 KlassHandle receiver_klass, 1426 const LinkInfo& link_info) { 1427 EXCEPTION_MARK; 1428 CallInfo info; 1429 resolve_virtual_call(info, Handle(), receiver_klass, link_info, false, THREAD); 1430 if (HAS_PENDING_EXCEPTION) { 1431 CLEAR_PENDING_EXCEPTION; 1432 return methodHandle(); 1433 } 1434 return info.selected_method(); 1435 } 1436 1437 methodHandle LinkResolver::resolve_interface_call_or_null( 1438 KlassHandle receiver_klass, 1439 const LinkInfo& link_info) { 1440 EXCEPTION_MARK; 1441 CallInfo info; 1442 resolve_interface_call(info, Handle(), receiver_klass, link_info, false, THREAD); 1443 if (HAS_PENDING_EXCEPTION) { 1444 CLEAR_PENDING_EXCEPTION; 1445 return methodHandle(); 1446 } 1447 return info.selected_method(); 1448 } 1449 1450 int LinkResolver::resolve_virtual_vtable_index(KlassHandle receiver_klass, 1451 const LinkInfo& link_info) { 1452 EXCEPTION_MARK; 1453 CallInfo info; 1454 resolve_virtual_call(info, Handle(), receiver_klass, link_info, 1455 /*check_null_or_abstract*/false, THREAD); 1456 if (HAS_PENDING_EXCEPTION) { 1457 CLEAR_PENDING_EXCEPTION; 1458 return Method::invalid_vtable_index; 1459 } 1460 return info.vtable_index(); 1461 } 1462 1463 methodHandle LinkResolver::resolve_static_call_or_null(const LinkInfo& link_info) { 1464 EXCEPTION_MARK; 1465 CallInfo info; 1466 resolve_static_call(info, link_info, /*initialize_class*/false, THREAD); 1467 if (HAS_PENDING_EXCEPTION) { 1468 CLEAR_PENDING_EXCEPTION; 1469 return methodHandle(); 1470 } 1471 return info.selected_method(); 1472 } 1473 1474 methodHandle LinkResolver::resolve_special_call_or_null(const LinkInfo& link_info) { 1475 EXCEPTION_MARK; 1476 CallInfo info; 1477 resolve_special_call(info, link_info, THREAD); 1478 if (HAS_PENDING_EXCEPTION) { 1479 CLEAR_PENDING_EXCEPTION; 1480 return methodHandle(); 1481 } 1482 return info.selected_method(); 1483 } 1484 1485 1486 1487 //------------------------------------------------------------------------------------------------------------------------ 1488 // ConstantPool entries 1489 1490 void LinkResolver::resolve_invoke(CallInfo& result, Handle recv, const constantPoolHandle& pool, int index, Bytecodes::Code byte, TRAPS) { 1491 switch (byte) { 1492 case Bytecodes::_invokestatic : resolve_invokestatic (result, pool, index, CHECK); break; 1493 case Bytecodes::_invokespecial : resolve_invokespecial (result, pool, index, CHECK); break; 1494 case Bytecodes::_invokevirtual : resolve_invokevirtual (result, recv, pool, index, CHECK); break; 1495 case Bytecodes::_invokehandle : resolve_invokehandle (result, pool, index, CHECK); break; 1496 case Bytecodes::_invokedynamic : resolve_invokedynamic (result, pool, index, CHECK); break; 1497 case Bytecodes::_invokeinterface: resolve_invokeinterface(result, recv, pool, index, CHECK); break; 1498 } 1499 return; 1500 } 1501 1502 void LinkResolver::resolve_invoke(CallInfo& result, Handle& recv, 1503 const methodHandle& attached_method, 1504 Bytecodes::Code byte, TRAPS) { 1505 KlassHandle defc = attached_method->method_holder(); 1506 Symbol* name = attached_method->name(); 1507 Symbol* type = attached_method->signature(); 1508 LinkInfo link_info(defc, name, type, KlassHandle(), /*check_access=*/false); 1509 switch(byte) { 1510 case Bytecodes::_invokevirtual: 1511 resolve_virtual_call(result, recv, recv->klass(), link_info, 1512 /*check_null_and_abstract=*/true, CHECK); 1513 break; 1514 case Bytecodes::_invokeinterface: 1515 resolve_interface_call(result, recv, recv->klass(), link_info, 1516 /*check_null_and_abstract=*/true, CHECK); 1517 break; 1518 case Bytecodes::_invokestatic: 1519 resolve_static_call(result, link_info, /*initialize_class=*/false, CHECK); 1520 break; 1521 case Bytecodes::_invokespecial: 1522 resolve_special_call(result, link_info, CHECK); 1523 break; 1524 default: 1525 fatal("bad call: %s", Bytecodes::name(byte)); 1526 } 1527 } 1528 1529 void LinkResolver::resolve_invokestatic(CallInfo& result, const constantPoolHandle& pool, int index, TRAPS) { 1530 LinkInfo link_info(pool, index, CHECK); 1531 resolve_static_call(result, link_info, /*initialize_class*/true, CHECK); 1532 } 1533 1534 1535 void LinkResolver::resolve_invokespecial(CallInfo& result, const constantPoolHandle& pool, int index, TRAPS) { 1536 LinkInfo link_info(pool, index, CHECK); 1537 resolve_special_call(result, link_info, CHECK); 1538 } 1539 1540 1541 void LinkResolver::resolve_invokevirtual(CallInfo& result, Handle recv, 1542 const constantPoolHandle& pool, int index, 1543 TRAPS) { 1544 1545 LinkInfo link_info(pool, index, CHECK); 1546 KlassHandle recvrKlass (THREAD, recv.is_null() ? (Klass*)NULL : recv->klass()); 1547 resolve_virtual_call(result, recv, recvrKlass, link_info, /*check_null_or_abstract*/true, CHECK); 1548 } 1549 1550 1551 void LinkResolver::resolve_invokeinterface(CallInfo& result, Handle recv, const constantPoolHandle& pool, int index, TRAPS) { 1552 LinkInfo link_info(pool, index, CHECK); 1553 KlassHandle recvrKlass (THREAD, recv.is_null() ? (Klass*)NULL : recv->klass()); 1554 resolve_interface_call(result, recv, recvrKlass, link_info, true, CHECK); 1555 } 1556 1557 1558 void LinkResolver::resolve_invokehandle(CallInfo& result, const constantPoolHandle& pool, int index, TRAPS) { 1559 // This guy is reached from InterpreterRuntime::resolve_invokehandle. 1560 LinkInfo link_info(pool, index, CHECK); 1561 if (TraceMethodHandles) { 1562 ResourceMark rm(THREAD); 1563 tty->print_cr("resolve_invokehandle %s %s", link_info.name()->as_C_string(), 1564 link_info.signature()->as_C_string()); 1565 } 1566 resolve_handle_call(result, link_info, CHECK); 1567 } 1568 1569 void LinkResolver::resolve_handle_call(CallInfo& result, 1570 const LinkInfo& link_info, 1571 TRAPS) { 1572 // JSR 292: this must be an implicitly generated method MethodHandle.invokeExact(*...) or similar 1573 KlassHandle resolved_klass = link_info.resolved_klass(); 1574 assert(resolved_klass() == SystemDictionary::MethodHandle_klass() || 1575 resolved_klass() == SystemDictionary::VarHandle_klass(), ""); 1576 assert(MethodHandles::is_signature_polymorphic_name(link_info.name()), ""); 1577 Handle resolved_appendix; 1578 Handle resolved_method_type; 1579 methodHandle resolved_method = lookup_polymorphic_method(link_info, 1580 &resolved_appendix, &resolved_method_type, CHECK); 1581 result.set_handle(resolved_klass, resolved_method, resolved_appendix, resolved_method_type, CHECK); 1582 } 1583 1584 static void wrap_invokedynamic_exception(TRAPS) { 1585 if (HAS_PENDING_EXCEPTION) { 1586 if (TraceMethodHandles) { 1587 tty->print_cr("invokedynamic throws BSME for " INTPTR_FORMAT, p2i((void *)PENDING_EXCEPTION)); 1588 PENDING_EXCEPTION->print(); 1589 } 1590 if (PENDING_EXCEPTION->is_a(SystemDictionary::BootstrapMethodError_klass())) { 1591 // throw these guys, since they are already wrapped 1592 return; 1593 } 1594 if (!PENDING_EXCEPTION->is_a(SystemDictionary::LinkageError_klass())) { 1595 // intercept only LinkageErrors which might have failed to wrap 1596 return; 1597 } 1598 // See the "Linking Exceptions" section for the invokedynamic instruction in the JVMS. 1599 Handle nested_exception(THREAD, PENDING_EXCEPTION); 1600 CLEAR_PENDING_EXCEPTION; 1601 THROW_CAUSE(vmSymbols::java_lang_BootstrapMethodError(), nested_exception) 1602 } 1603 } 1604 1605 void LinkResolver::resolve_invokedynamic(CallInfo& result, const constantPoolHandle& pool, int index, TRAPS) { 1606 Symbol* method_name = pool->name_ref_at(index); 1607 Symbol* method_signature = pool->signature_ref_at(index); 1608 KlassHandle current_klass = KlassHandle(THREAD, pool->pool_holder()); 1609 1610 // Resolve the bootstrap specifier (BSM + optional arguments). 1611 Handle bootstrap_specifier; 1612 // Check if CallSite has been bound already: 1613 ConstantPoolCacheEntry* cpce = pool->invokedynamic_cp_cache_entry_at(index); 1614 if (cpce->is_f1_null()) { 1615 int pool_index = cpce->constant_pool_index(); 1616 oop bsm_info = pool->resolve_bootstrap_specifier_at(pool_index, THREAD); 1617 wrap_invokedynamic_exception(CHECK); 1618 assert(bsm_info != NULL, ""); 1619 // FIXME: Cache this once per BootstrapMethods entry, not once per CONSTANT_InvokeDynamic. 1620 bootstrap_specifier = Handle(THREAD, bsm_info); 1621 } 1622 if (!cpce->is_f1_null()) { 1623 methodHandle method( THREAD, cpce->f1_as_method()); 1624 Handle appendix( THREAD, cpce->appendix_if_resolved(pool)); 1625 Handle method_type(THREAD, cpce->method_type_if_resolved(pool)); 1626 result.set_handle(method, appendix, method_type, THREAD); 1627 wrap_invokedynamic_exception(CHECK); 1628 return; 1629 } 1630 1631 if (TraceMethodHandles) { 1632 ResourceMark rm(THREAD); 1633 tty->print_cr("resolve_invokedynamic #%d %s %s in %s", 1634 ConstantPool::decode_invokedynamic_index(index), 1635 method_name->as_C_string(), method_signature->as_C_string(), 1636 current_klass->name()->as_C_string()); 1637 tty->print(" BSM info: "); bootstrap_specifier->print(); 1638 } 1639 1640 resolve_dynamic_call(result, bootstrap_specifier, method_name, method_signature, current_klass, CHECK); 1641 } 1642 1643 void LinkResolver::resolve_dynamic_call(CallInfo& result, 1644 Handle bootstrap_specifier, 1645 Symbol* method_name, Symbol* method_signature, 1646 KlassHandle current_klass, 1647 TRAPS) { 1648 // JSR 292: this must resolve to an implicitly generated method MH.linkToCallSite(*...) 1649 // The appendix argument is likely to be a freshly-created CallSite. 1650 Handle resolved_appendix; 1651 Handle resolved_method_type; 1652 methodHandle resolved_method = 1653 SystemDictionary::find_dynamic_call_site_invoker(current_klass, 1654 bootstrap_specifier, 1655 method_name, method_signature, 1656 &resolved_appendix, 1657 &resolved_method_type, 1658 THREAD); 1659 wrap_invokedynamic_exception(CHECK); 1660 result.set_handle(resolved_method, resolved_appendix, resolved_method_type, THREAD); 1661 wrap_invokedynamic_exception(CHECK); 1662 }