1 /* 2 * Copyright (c) 1997, 2023, 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 "cds/cdsConfig.hpp" 27 #include "classfile/javaClasses.inline.hpp" 28 #include "classfile/moduleEntry.hpp" 29 #include "classfile/packageEntry.hpp" 30 #include "classfile/stringTable.hpp" 31 #include "classfile/verifier.hpp" 32 #include "classfile/vmClasses.hpp" 33 #include "classfile/vmSymbols.hpp" 34 #include "interpreter/linkResolver.hpp" 35 #include "jvm.h" 36 #include "logging/log.hpp" 37 #include "memory/oopFactory.hpp" 38 #include "memory/resourceArea.hpp" 39 #include "memory/universe.hpp" 40 #include "oops/instanceKlass.inline.hpp" 41 #include "oops/klass.inline.hpp" 42 #include "oops/objArrayKlass.hpp" 43 #include "oops/objArrayOop.inline.hpp" 44 #include "oops/oop.inline.hpp" 45 #include "oops/typeArrayOop.inline.hpp" 46 #include "prims/jvmtiExport.hpp" 47 #include "runtime/fieldDescriptor.inline.hpp" 48 #include "runtime/handles.inline.hpp" 49 #include "runtime/javaCalls.hpp" 50 #include "runtime/javaThread.hpp" 51 #include "runtime/reflection.hpp" 52 #include "runtime/reflectionUtils.hpp" 53 #include "runtime/signature.hpp" 54 #include "runtime/vframe.inline.hpp" 55 #include "utilities/formatBuffer.hpp" 56 57 static void trace_class_resolution(oop mirror) { 58 if (mirror == nullptr || java_lang_Class::is_primitive(mirror)) { 59 return; 60 } 61 Klass* to_class = java_lang_Class::as_Klass(mirror); 62 ResourceMark rm; 63 int line_number = -1; 64 const char * source_file = nullptr; 65 Klass* caller = nullptr; 66 JavaThread* jthread = JavaThread::current(); 67 if (jthread->has_last_Java_frame()) { 68 vframeStream vfst(jthread); 69 // skip over any frames belonging to java.lang.Class 70 while (!vfst.at_end() && 71 vfst.method()->method_holder()->name() == vmSymbols::java_lang_Class()) { 72 vfst.next(); 73 } 74 if (!vfst.at_end()) { 75 // this frame is a likely suspect 76 caller = vfst.method()->method_holder(); 77 line_number = vfst.method()->line_number_from_bci(vfst.bci()); 78 Symbol* s = vfst.method()->method_holder()->source_file_name(); 79 if (s != nullptr) { 80 source_file = s->as_C_string(); 81 } 82 } 83 } 84 if (caller != nullptr) { 85 const char * from = caller->external_name(); 86 const char * to = to_class->external_name(); 87 // print in a single call to reduce interleaving between threads 88 if (source_file != nullptr) { 89 log_debug(class, resolve)("%s %s %s:%d (reflection)", from, to, source_file, line_number); 90 } else { 91 log_debug(class, resolve)("%s %s (reflection)", from, to); 92 } 93 } 94 } 95 96 97 oop Reflection::box(jvalue* value, BasicType type, TRAPS) { 98 if (type == T_VOID) { 99 return nullptr; 100 } 101 if (is_reference_type(type)) { 102 // regular objects are not boxed 103 return cast_to_oop(value->l); 104 } 105 oop result = java_lang_boxing_object::create(type, value, CHECK_NULL); 106 if (result == nullptr) { 107 THROW_(vmSymbols::java_lang_IllegalArgumentException(), result); 108 } 109 return result; 110 } 111 112 113 BasicType Reflection::unbox_for_primitive(oop box, jvalue* value, TRAPS) { 114 if (box == nullptr) { 115 THROW_(vmSymbols::java_lang_IllegalArgumentException(), T_ILLEGAL); 116 } 117 return java_lang_boxing_object::get_value(box, value); 118 } 119 120 BasicType Reflection::unbox_for_regular_object(oop box, jvalue* value) { 121 // Note: box is really the unboxed oop. It might even be a Short, etc.! 122 value->l = cast_from_oop<jobject>(box); 123 return T_OBJECT; 124 } 125 126 127 void Reflection::widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS) { 128 assert(wide_type != current_type, "widen should not be called with identical types"); 129 switch (wide_type) { 130 case T_BOOLEAN: 131 case T_BYTE: 132 case T_CHAR: 133 break; // fail 134 case T_SHORT: 135 switch (current_type) { 136 case T_BYTE: 137 value->s = (jshort) value->b; 138 return; 139 default: 140 break; 141 } 142 break; // fail 143 case T_INT: 144 switch (current_type) { 145 case T_BYTE: 146 value->i = (jint) value->b; 147 return; 148 case T_CHAR: 149 value->i = (jint) value->c; 150 return; 151 case T_SHORT: 152 value->i = (jint) value->s; 153 return; 154 default: 155 break; 156 } 157 break; // fail 158 case T_LONG: 159 switch (current_type) { 160 case T_BYTE: 161 value->j = (jlong) value->b; 162 return; 163 case T_CHAR: 164 value->j = (jlong) value->c; 165 return; 166 case T_SHORT: 167 value->j = (jlong) value->s; 168 return; 169 case T_INT: 170 value->j = (jlong) value->i; 171 return; 172 default: 173 break; 174 } 175 break; // fail 176 case T_FLOAT: 177 switch (current_type) { 178 case T_BYTE: 179 value->f = (jfloat) value->b; 180 return; 181 case T_CHAR: 182 value->f = (jfloat) value->c; 183 return; 184 case T_SHORT: 185 value->f = (jfloat) value->s; 186 return; 187 case T_INT: 188 value->f = (jfloat) value->i; 189 return; 190 case T_LONG: 191 value->f = (jfloat) value->j; 192 return; 193 default: 194 break; 195 } 196 break; // fail 197 case T_DOUBLE: 198 switch (current_type) { 199 case T_BYTE: 200 value->d = (jdouble) value->b; 201 return; 202 case T_CHAR: 203 value->d = (jdouble) value->c; 204 return; 205 case T_SHORT: 206 value->d = (jdouble) value->s; 207 return; 208 case T_INT: 209 value->d = (jdouble) value->i; 210 return; 211 case T_FLOAT: 212 value->d = (jdouble) value->f; 213 return; 214 case T_LONG: 215 value->d = (jdouble) value->j; 216 return; 217 default: 218 break; 219 } 220 break; // fail 221 default: 222 break; // fail 223 } 224 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); 225 } 226 227 228 BasicType Reflection::array_get(jvalue* value, arrayOop a, int index, TRAPS) { 229 if (!a->is_within_bounds(index)) { 230 THROW_(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), T_ILLEGAL); 231 } 232 if (a->is_objArray()) { 233 value->l = cast_from_oop<jobject>(objArrayOop(a)->obj_at(index)); 234 return T_OBJECT; 235 } else { 236 assert(a->is_typeArray(), "just checking"); 237 BasicType type = TypeArrayKlass::cast(a->klass())->element_type(); 238 switch (type) { 239 case T_BOOLEAN: 240 value->z = typeArrayOop(a)->bool_at(index); 241 break; 242 case T_CHAR: 243 value->c = typeArrayOop(a)->char_at(index); 244 break; 245 case T_FLOAT: 246 value->f = typeArrayOop(a)->float_at(index); 247 break; 248 case T_DOUBLE: 249 value->d = typeArrayOop(a)->double_at(index); 250 break; 251 case T_BYTE: 252 value->b = typeArrayOop(a)->byte_at(index); 253 break; 254 case T_SHORT: 255 value->s = typeArrayOop(a)->short_at(index); 256 break; 257 case T_INT: 258 value->i = typeArrayOop(a)->int_at(index); 259 break; 260 case T_LONG: 261 value->j = typeArrayOop(a)->long_at(index); 262 break; 263 default: 264 return T_ILLEGAL; 265 } 266 return type; 267 } 268 } 269 270 271 void Reflection::array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS) { 272 if (!a->is_within_bounds(index)) { 273 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); 274 } 275 if (a->is_objArray()) { 276 if (value_type == T_OBJECT) { 277 oop obj = cast_to_oop(value->l); 278 if (obj != nullptr) { 279 Klass* element_klass = ObjArrayKlass::cast(a->klass())->element_klass(); 280 if (!obj->is_a(element_klass)) { 281 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "array element type mismatch"); 282 } 283 } 284 objArrayOop(a)->obj_at_put(index, obj); 285 } 286 } else { 287 assert(a->is_typeArray(), "just checking"); 288 BasicType array_type = TypeArrayKlass::cast(a->klass())->element_type(); 289 if (array_type != value_type) { 290 // The widen operation can potentially throw an exception, but cannot block, 291 // so typeArrayOop a is safe if the call succeeds. 292 widen(value, value_type, array_type, CHECK); 293 } 294 switch (array_type) { 295 case T_BOOLEAN: 296 typeArrayOop(a)->bool_at_put(index, value->z); 297 break; 298 case T_CHAR: 299 typeArrayOop(a)->char_at_put(index, value->c); 300 break; 301 case T_FLOAT: 302 typeArrayOop(a)->float_at_put(index, value->f); 303 break; 304 case T_DOUBLE: 305 typeArrayOop(a)->double_at_put(index, value->d); 306 break; 307 case T_BYTE: 308 typeArrayOop(a)->byte_at_put(index, value->b); 309 break; 310 case T_SHORT: 311 typeArrayOop(a)->short_at_put(index, value->s); 312 break; 313 case T_INT: 314 typeArrayOop(a)->int_at_put(index, value->i); 315 break; 316 case T_LONG: 317 typeArrayOop(a)->long_at_put(index, value->j); 318 break; 319 default: 320 THROW(vmSymbols::java_lang_IllegalArgumentException()); 321 } 322 } 323 } 324 325 static Klass* basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS) { 326 assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking"); 327 BasicType type = java_lang_Class::primitive_type(basic_type_mirror); 328 if (type == T_VOID) { 329 THROW_0(vmSymbols::java_lang_IllegalArgumentException()); 330 } 331 else { 332 return Universe::typeArrayKlassObj(type); 333 } 334 } 335 336 arrayOop Reflection::reflect_new_array(oop element_mirror, jint length, TRAPS) { 337 if (element_mirror == nullptr) { 338 THROW_0(vmSymbols::java_lang_NullPointerException()); 339 } 340 if (length < 0) { 341 THROW_MSG_0(vmSymbols::java_lang_NegativeArraySizeException(), err_msg("%d", length)); 342 } 343 if (java_lang_Class::is_primitive(element_mirror)) { 344 Klass* tak = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL); 345 return TypeArrayKlass::cast(tak)->allocate(length, THREAD); 346 } else { 347 Klass* k = java_lang_Class::as_Klass(element_mirror); 348 if (k->is_array_klass() && ArrayKlass::cast(k)->dimension() >= MAX_DIM) { 349 THROW_0(vmSymbols::java_lang_IllegalArgumentException()); 350 } 351 return oopFactory::new_objArray(k, length, THREAD); 352 } 353 } 354 355 356 arrayOop Reflection::reflect_new_multi_array(oop element_mirror, typeArrayOop dim_array, TRAPS) { 357 assert(dim_array->is_typeArray(), "just checking"); 358 assert(TypeArrayKlass::cast(dim_array->klass())->element_type() == T_INT, "just checking"); 359 360 if (element_mirror == nullptr) { 361 THROW_0(vmSymbols::java_lang_NullPointerException()); 362 } 363 364 int len = dim_array->length(); 365 if (len <= 0 || len > MAX_DIM) { 366 THROW_0(vmSymbols::java_lang_IllegalArgumentException()); 367 } 368 369 jint dimensions[MAX_DIM]; // C array copy of intArrayOop 370 for (int i = 0; i < len; i++) { 371 int d = dim_array->int_at(i); 372 if (d < 0) { 373 THROW_MSG_0(vmSymbols::java_lang_NegativeArraySizeException(), err_msg("%d", d)); 374 } 375 dimensions[i] = d; 376 } 377 378 Klass* klass; 379 int dim = len; 380 if (java_lang_Class::is_primitive(element_mirror)) { 381 klass = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL); 382 } else { 383 klass = java_lang_Class::as_Klass(element_mirror); 384 if (klass->is_array_klass()) { 385 int k_dim = ArrayKlass::cast(klass)->dimension(); 386 if (k_dim + len > MAX_DIM) { 387 THROW_0(vmSymbols::java_lang_IllegalArgumentException()); 388 } 389 dim += k_dim; 390 } 391 } 392 klass = klass->array_klass(dim, CHECK_NULL); 393 oop obj = ArrayKlass::cast(klass)->multi_allocate(len, dimensions, CHECK_NULL); 394 assert(obj->is_array(), "just checking"); 395 return arrayOop(obj); 396 } 397 398 399 static bool can_relax_access_check_for(const Klass* accessor, 400 const Klass* accessee, 401 bool classloader_only) { 402 403 const InstanceKlass* accessor_ik = InstanceKlass::cast(accessor); 404 const InstanceKlass* accessee_ik = InstanceKlass::cast(accessee); 405 406 if (RelaxAccessControlCheck && 407 accessor_ik->major_version() < Verifier::NO_RELAX_ACCESS_CTRL_CHECK_VERSION && 408 accessee_ik->major_version() < Verifier::NO_RELAX_ACCESS_CTRL_CHECK_VERSION) { 409 return classloader_only && 410 Verifier::relax_access_for(accessor_ik->class_loader()) && 411 accessor_ik->protection_domain() == accessee_ik->protection_domain() && 412 accessor_ik->class_loader() == accessee_ik->class_loader(); 413 } 414 415 return false; 416 } 417 418 /* 419 Type Accessibility check for public types: Callee Type T is accessible to Caller Type S if: 420 421 Callee T in Callee T in package PT, 422 unnamed module runtime module MT 423 ------------------------------------------------------------------------------------------------ 424 425 Caller S in package If MS is loose: YES If same classloader/package (PS == PT): YES 426 PS, runtime module MS If MS can read T's If same runtime module: (MS == MT): YES 427 unnamed module: YES 428 Else if (MS can read MT (establish readability) && 429 ((MT exports PT to MS or to all modules) || 430 (MT is open))): YES 431 432 ------------------------------------------------------------------------------------------------ 433 Caller S in unnamed YES Readability exists because unnamed module 434 module UM "reads" all modules 435 if (MT exports PT to UM or to all modules): YES 436 437 ------------------------------------------------------------------------------------------------ 438 439 Note: a loose module is a module that can read all current and future unnamed modules. 440 */ 441 Reflection::VerifyClassAccessResults Reflection::verify_class_access( 442 const Klass* current_class, const InstanceKlass* new_class, bool classloader_only) { 443 444 // Verify that current_class can access new_class. If the classloader_only 445 // flag is set, we automatically allow any accesses in which current_class 446 // doesn't have a classloader. 447 if ((current_class == nullptr) || 448 (current_class == new_class) || 449 is_same_class_package(current_class, new_class)) { 450 return ACCESS_OK; 451 } 452 // Allow all accesses from jdk/internal/reflect/SerializationConstructorAccessorImpl subclasses to 453 // succeed trivially. 454 if (vmClasses::reflect_SerializationConstructorAccessorImpl_klass_is_loaded() && 455 current_class->is_subclass_of(vmClasses::reflect_SerializationConstructorAccessorImpl_klass())) { 456 return ACCESS_OK; 457 } 458 459 // module boundaries 460 if (new_class->is_public()) { 461 // Ignore modules for -Xshare:dump because we do not have any package 462 // or module information for modules other than java.base. 463 if (CDSConfig::is_dumping_static_archive()) { 464 return ACCESS_OK; 465 } 466 467 // Find the module entry for current_class, the accessor 468 ModuleEntry* module_from = current_class->module(); 469 // Find the module entry for new_class, the accessee 470 ModuleEntry* module_to = new_class->module(); 471 472 // both in same (possibly unnamed) module 473 if (module_from == module_to) { 474 return ACCESS_OK; 475 } 476 477 // Acceptable access to a type in an unnamed module. Note that since 478 // unnamed modules can read all unnamed modules, this also handles the 479 // case where module_from is also unnamed but in a different class loader. 480 if (!module_to->is_named() && 481 (module_from->can_read_all_unnamed() || module_from->can_read(module_to))) { 482 return ACCESS_OK; 483 } 484 485 // Establish readability, check if module_from is allowed to read module_to. 486 if (!module_from->can_read(module_to)) { 487 return MODULE_NOT_READABLE; 488 } 489 490 // Access is allowed if module_to is open, i.e. all its packages are unqualifiedly exported 491 if (module_to->is_open()) { 492 return ACCESS_OK; 493 } 494 495 PackageEntry* package_to = new_class->package(); 496 assert(package_to != nullptr, "can not obtain new_class' package"); 497 498 { 499 MutexLocker m1(Module_lock); 500 501 // Once readability is established, if module_to exports T unqualifiedly, 502 // (to all modules), than whether module_from is in the unnamed module 503 // or not does not matter, access is allowed. 504 if (package_to->is_unqual_exported()) { 505 return ACCESS_OK; 506 } 507 508 // Access is allowed if both 1 & 2 hold: 509 // 1. Readability, module_from can read module_to (established above). 510 // 2. Either module_to exports T to module_from qualifiedly. 511 // or 512 // module_to exports T to all unnamed modules and module_from is unnamed. 513 // or 514 // module_to exports T unqualifiedly to all modules (checked above). 515 if (!package_to->is_qexported_to(module_from)) { 516 return TYPE_NOT_EXPORTED; 517 } 518 } 519 return ACCESS_OK; 520 } 521 522 if (can_relax_access_check_for(current_class, new_class, classloader_only)) { 523 return ACCESS_OK; 524 } 525 return OTHER_PROBLEM; 526 } 527 528 // Return an error message specific to the specified Klass*'s and result. 529 // This function must be called from within a block containing a ResourceMark. 530 char* Reflection::verify_class_access_msg(const Klass* current_class, 531 const InstanceKlass* new_class, 532 const VerifyClassAccessResults result) { 533 assert(result != ACCESS_OK, "must be failure result"); 534 char * msg = nullptr; 535 if (result != OTHER_PROBLEM && new_class != nullptr && current_class != nullptr) { 536 // Find the module entry for current_class, the accessor 537 ModuleEntry* module_from = current_class->module(); 538 const char * module_from_name = module_from->is_named() ? module_from->name()->as_C_string() : UNNAMED_MODULE; 539 const char * current_class_name = current_class->external_name(); 540 541 // Find the module entry for new_class, the accessee 542 ModuleEntry* module_to = nullptr; 543 module_to = new_class->module(); 544 const char * module_to_name = module_to->is_named() ? module_to->name()->as_C_string() : UNNAMED_MODULE; 545 const char * new_class_name = new_class->external_name(); 546 547 if (result == MODULE_NOT_READABLE) { 548 assert(module_from->is_named(), "Unnamed modules can read all modules"); 549 if (module_to->is_named()) { 550 size_t len = 100 + strlen(current_class_name) + 2*strlen(module_from_name) + 551 strlen(new_class_name) + 2*strlen(module_to_name); 552 msg = NEW_RESOURCE_ARRAY(char, len); 553 jio_snprintf(msg, len - 1, 554 "class %s (in module %s) cannot access class %s (in module %s) because module %s does not read module %s", 555 current_class_name, module_from_name, new_class_name, 556 module_to_name, module_from_name, module_to_name); 557 } else { 558 oop jlm = module_to->module(); 559 assert(jlm != nullptr, "Null jlm in module_to ModuleEntry"); 560 intptr_t identity_hash = jlm->identity_hash(); 561 size_t len = 160 + strlen(current_class_name) + 2*strlen(module_from_name) + 562 strlen(new_class_name) + 2*sizeof(uintx); 563 msg = NEW_RESOURCE_ARRAY(char, len); 564 jio_snprintf(msg, len - 1, 565 "class %s (in module %s) cannot access class %s (in unnamed module @" SIZE_FORMAT_X ") because module %s does not read unnamed module @" SIZE_FORMAT_X, 566 current_class_name, module_from_name, new_class_name, uintx(identity_hash), 567 module_from_name, uintx(identity_hash)); 568 } 569 570 } else if (result == TYPE_NOT_EXPORTED) { 571 assert(new_class->package() != nullptr, 572 "Unnamed packages are always exported"); 573 const char * package_name = 574 new_class->package()->name()->as_klass_external_name(); 575 assert(module_to->is_named(), "Unnamed modules export all packages"); 576 if (module_from->is_named()) { 577 size_t len = 118 + strlen(current_class_name) + 2*strlen(module_from_name) + 578 strlen(new_class_name) + 2*strlen(module_to_name) + strlen(package_name); 579 msg = NEW_RESOURCE_ARRAY(char, len); 580 jio_snprintf(msg, len - 1, 581 "class %s (in module %s) cannot access class %s (in module %s) because module %s does not export %s to module %s", 582 current_class_name, module_from_name, new_class_name, 583 module_to_name, module_to_name, package_name, module_from_name); 584 } else { 585 oop jlm = module_from->module(); 586 assert(jlm != nullptr, "Null jlm in module_from ModuleEntry"); 587 intptr_t identity_hash = jlm->identity_hash(); 588 size_t len = 170 + strlen(current_class_name) + strlen(new_class_name) + 589 2*strlen(module_to_name) + strlen(package_name) + 2*sizeof(uintx); 590 msg = NEW_RESOURCE_ARRAY(char, len); 591 jio_snprintf(msg, len - 1, 592 "class %s (in unnamed module @" SIZE_FORMAT_X ") cannot access class %s (in module %s) because module %s does not export %s to unnamed module @" SIZE_FORMAT_X, 593 current_class_name, uintx(identity_hash), new_class_name, module_to_name, 594 module_to_name, package_name, uintx(identity_hash)); 595 } 596 } else { 597 ShouldNotReachHere(); 598 } 599 } // result != OTHER_PROBLEM... 600 return msg; 601 } 602 603 bool Reflection::verify_member_access(const Klass* current_class, 604 const Klass* resolved_class, 605 const Klass* member_class, 606 AccessFlags access, 607 bool classloader_only, 608 bool protected_restriction, 609 TRAPS) { 610 // Verify that current_class can access a member of member_class, where that 611 // field's access bits are "access". We assume that we've already verified 612 // that current_class can access member_class. 613 // 614 // If the classloader_only flag is set, we automatically allow any accesses 615 // in which current_class doesn't have a classloader. 616 // 617 // "resolved_class" is the runtime type of "member_class". Sometimes we don't 618 // need this distinction (e.g. if all we have is the runtime type, or during 619 // class file parsing when we only care about the static type); in that case 620 // callers should ensure that resolved_class == member_class. 621 // 622 if ((current_class == nullptr) || 623 (current_class == member_class) || 624 access.is_public()) { 625 return true; 626 } 627 628 if (current_class == member_class) { 629 return true; 630 } 631 632 if (access.is_protected()) { 633 if (!protected_restriction) { 634 // See if current_class (or outermost host class) is a subclass of member_class 635 // An interface may not access protected members of j.l.Object 636 if (!current_class->is_interface() && current_class->is_subclass_of(member_class)) { 637 if (access.is_static() || // static fields are ok, see 6622385 638 current_class == resolved_class || 639 member_class == resolved_class || 640 current_class->is_subclass_of(resolved_class) || 641 resolved_class->is_subclass_of(current_class)) { 642 return true; 643 } 644 } 645 } 646 } 647 648 // package access 649 if (!access.is_private() && is_same_class_package(current_class, member_class)) { 650 return true; 651 } 652 653 // private access between different classes needs a nestmate check. 654 if (access.is_private()) { 655 if (current_class->is_instance_klass() && member_class->is_instance_klass() ) { 656 InstanceKlass* cur_ik = const_cast<InstanceKlass*>(InstanceKlass::cast(current_class)); 657 InstanceKlass* field_ik = const_cast<InstanceKlass*>(InstanceKlass::cast(member_class)); 658 // Nestmate access checks may require resolution and validation of the nest-host. 659 // It is up to the caller to check for pending exceptions and handle appropriately. 660 bool access = cur_ik->has_nestmate_access_to(field_ik, CHECK_false); 661 if (access) { 662 guarantee(resolved_class->is_subclass_of(member_class), "must be!"); 663 return true; 664 } 665 } 666 } 667 668 // Allow all accesses from jdk/internal/reflect/SerializationConstructorAccessorImpl subclasses to 669 // succeed trivially. 670 if (current_class->is_subclass_of(vmClasses::reflect_SerializationConstructorAccessorImpl_klass())) { 671 return true; 672 } 673 674 // Check for special relaxations 675 return can_relax_access_check_for(current_class, member_class, classloader_only); 676 } 677 678 bool Reflection::is_same_class_package(const Klass* class1, const Klass* class2) { 679 return InstanceKlass::cast(class1)->is_same_class_package(class2); 680 } 681 682 // Checks that the 'outer' klass has declared 'inner' as being an inner klass. If not, 683 // throw an incompatible class change exception 684 // If inner_is_member, require the inner to be a member of the outer. 685 // If !inner_is_member, require the inner to be hidden (non-member). 686 // Caller is responsible for figuring out in advance which case must be true. 687 void Reflection::check_for_inner_class(const InstanceKlass* outer, const InstanceKlass* inner, 688 bool inner_is_member, TRAPS) { 689 InnerClassesIterator iter(outer); 690 constantPoolHandle cp (THREAD, outer->constants()); 691 for (; !iter.done(); iter.next()) { 692 int ioff = iter.inner_class_info_index(); 693 int ooff = iter.outer_class_info_index(); 694 695 if (inner_is_member && ioff != 0 && ooff != 0) { 696 if (cp->klass_name_at_matches(outer, ooff) && 697 cp->klass_name_at_matches(inner, ioff)) { 698 Klass* o = cp->klass_at(ooff, CHECK); 699 if (o == outer) { 700 Klass* i = cp->klass_at(ioff, CHECK); 701 if (i == inner) { 702 return; 703 } 704 } 705 } 706 } 707 708 if (!inner_is_member && ioff != 0 && ooff == 0 && 709 cp->klass_name_at_matches(inner, ioff)) { 710 Klass* i = cp->klass_at(ioff, CHECK); 711 if (i == inner) { 712 return; 713 } 714 } 715 } 716 717 // 'inner' not declared as an inner klass in outer 718 ResourceMark rm(THREAD); 719 Exceptions::fthrow( 720 THREAD_AND_LOCATION, 721 vmSymbols::java_lang_IncompatibleClassChangeError(), 722 "%s and %s disagree on InnerClasses attribute", 723 outer->external_name(), 724 inner->external_name() 725 ); 726 } 727 728 static objArrayHandle get_parameter_types(const methodHandle& method, 729 int parameter_count, 730 oop* return_type, 731 TRAPS) { 732 objArrayOop m; 733 if (parameter_count == 0) { 734 // Avoid allocating an array for the empty case 735 // Still need to parse the signature for the return type below 736 m = Universe::the_empty_class_array(); 737 } else { 738 // Allocate array holding parameter types (java.lang.Class instances) 739 m = oopFactory::new_objArray(vmClasses::Class_klass(), parameter_count, CHECK_(objArrayHandle())); 740 } 741 objArrayHandle mirrors(THREAD, m); 742 int index = 0; 743 // Collect parameter types 744 ResourceMark rm(THREAD); 745 for (ResolvingSignatureStream ss(method()); !ss.is_done(); ss.next()) { 746 oop mirror = ss.as_java_mirror(SignatureStream::NCDFError, CHECK_(objArrayHandle())); 747 if (log_is_enabled(Debug, class, resolve)) { 748 trace_class_resolution(mirror); 749 } 750 if (!ss.at_return_type()) { 751 mirrors->obj_at_put(index++, mirror); 752 } else if (return_type != nullptr) { 753 // Collect return type as well 754 assert(ss.at_return_type(), "return type should be present"); 755 *return_type = mirror; 756 } 757 } 758 assert(index == parameter_count, "invalid parameter count"); 759 return mirrors; 760 } 761 762 static objArrayHandle get_exception_types(const methodHandle& method, TRAPS) { 763 return method->resolved_checked_exceptions(THREAD); 764 } 765 766 static Handle new_type(Symbol* signature, Klass* k, TRAPS) { 767 ResolvingSignatureStream ss(signature, k, false); 768 oop nt = ss.as_java_mirror(SignatureStream::NCDFError, CHECK_NH); 769 if (log_is_enabled(Debug, class, resolve)) { 770 trace_class_resolution(nt); 771 } 772 return Handle(THREAD, nt); 773 } 774 775 oop Reflection::new_method(const methodHandle& method, bool for_constant_pool_access, TRAPS) { 776 // Allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods. 777 assert(!method()->is_initializer() || 778 (for_constant_pool_access && method()->is_static()), 779 "should call new_constructor instead"); 780 InstanceKlass* holder = method->method_holder(); 781 int slot = method->method_idnum(); 782 783 Symbol* signature = method->signature(); 784 int parameter_count = ArgumentCount(signature).size(); 785 oop return_type_oop = nullptr; 786 objArrayHandle parameter_types = get_parameter_types(method, parameter_count, &return_type_oop, CHECK_NULL); 787 if (parameter_types.is_null() || return_type_oop == nullptr) return nullptr; 788 789 Handle return_type(THREAD, return_type_oop); 790 791 objArrayHandle exception_types = get_exception_types(method, CHECK_NULL); 792 assert(!exception_types.is_null(), "cannot return null"); 793 794 Symbol* method_name = method->name(); 795 oop name_oop = StringTable::intern(method_name, CHECK_NULL); 796 Handle name = Handle(THREAD, name_oop); 797 if (name == nullptr) return nullptr; 798 799 const int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS; 800 801 Handle mh = java_lang_reflect_Method::create(CHECK_NULL); 802 803 java_lang_reflect_Method::set_clazz(mh(), holder->java_mirror()); 804 java_lang_reflect_Method::set_slot(mh(), slot); 805 java_lang_reflect_Method::set_name(mh(), name()); 806 java_lang_reflect_Method::set_return_type(mh(), return_type()); 807 java_lang_reflect_Method::set_parameter_types(mh(), parameter_types()); 808 java_lang_reflect_Method::set_exception_types(mh(), exception_types()); 809 java_lang_reflect_Method::set_modifiers(mh(), modifiers); 810 java_lang_reflect_Method::set_override(mh(), false); 811 if (method->generic_signature() != nullptr) { 812 Symbol* gs = method->generic_signature(); 813 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); 814 java_lang_reflect_Method::set_signature(mh(), sig()); 815 } 816 typeArrayOop an_oop = Annotations::make_java_array(method->annotations(), CHECK_NULL); 817 java_lang_reflect_Method::set_annotations(mh(), an_oop); 818 an_oop = Annotations::make_java_array(method->parameter_annotations(), CHECK_NULL); 819 java_lang_reflect_Method::set_parameter_annotations(mh(), an_oop); 820 an_oop = Annotations::make_java_array(method->annotation_default(), CHECK_NULL); 821 java_lang_reflect_Method::set_annotation_default(mh(), an_oop); 822 return mh(); 823 } 824 825 826 oop Reflection::new_constructor(const methodHandle& method, TRAPS) { 827 assert(method()->is_initializer(), "should call new_method instead"); 828 829 InstanceKlass* holder = method->method_holder(); 830 int slot = method->method_idnum(); 831 832 Symbol* signature = method->signature(); 833 int parameter_count = ArgumentCount(signature).size(); 834 objArrayHandle parameter_types = get_parameter_types(method, parameter_count, nullptr, CHECK_NULL); 835 if (parameter_types.is_null()) return nullptr; 836 837 objArrayHandle exception_types = get_exception_types(method, CHECK_NULL); 838 assert(!exception_types.is_null(), "cannot return null"); 839 840 const int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS; 841 842 Handle ch = java_lang_reflect_Constructor::create(CHECK_NULL); 843 844 java_lang_reflect_Constructor::set_clazz(ch(), holder->java_mirror()); 845 java_lang_reflect_Constructor::set_slot(ch(), slot); 846 java_lang_reflect_Constructor::set_parameter_types(ch(), parameter_types()); 847 java_lang_reflect_Constructor::set_exception_types(ch(), exception_types()); 848 java_lang_reflect_Constructor::set_modifiers(ch(), modifiers); 849 java_lang_reflect_Constructor::set_override(ch(), false); 850 if (method->generic_signature() != nullptr) { 851 Symbol* gs = method->generic_signature(); 852 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); 853 java_lang_reflect_Constructor::set_signature(ch(), sig()); 854 } 855 typeArrayOop an_oop = Annotations::make_java_array(method->annotations(), CHECK_NULL); 856 java_lang_reflect_Constructor::set_annotations(ch(), an_oop); 857 an_oop = Annotations::make_java_array(method->parameter_annotations(), CHECK_NULL); 858 java_lang_reflect_Constructor::set_parameter_annotations(ch(), an_oop); 859 return ch(); 860 } 861 862 863 oop Reflection::new_field(fieldDescriptor* fd, TRAPS) { 864 Symbol* field_name = fd->name(); 865 oop name_oop = StringTable::intern(field_name, CHECK_NULL); 866 Handle name = Handle(THREAD, name_oop); 867 Symbol* signature = fd->signature(); 868 InstanceKlass* holder = fd->field_holder(); 869 Handle type = new_type(signature, holder, CHECK_NULL); 870 Handle rh = java_lang_reflect_Field::create(CHECK_NULL); 871 872 java_lang_reflect_Field::set_clazz(rh(), fd->field_holder()->java_mirror()); 873 java_lang_reflect_Field::set_slot(rh(), fd->index()); 874 java_lang_reflect_Field::set_name(rh(), name()); 875 java_lang_reflect_Field::set_type(rh(), type()); 876 if (fd->is_trusted_final()) { 877 java_lang_reflect_Field::set_trusted_final(rh()); 878 } 879 // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here. 880 java_lang_reflect_Field::set_modifiers(rh(), fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS); 881 java_lang_reflect_Field::set_override(rh(), false); 882 if (fd->has_generic_signature()) { 883 Symbol* gs = fd->generic_signature(); 884 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); 885 java_lang_reflect_Field::set_signature(rh(), sig()); 886 } 887 typeArrayOop an_oop = Annotations::make_java_array(fd->annotations(), CHECK_NULL); 888 java_lang_reflect_Field::set_annotations(rh(), an_oop); 889 return rh(); 890 } 891 892 oop Reflection::new_parameter(Handle method, int index, Symbol* sym, 893 int flags, TRAPS) { 894 895 Handle rh = java_lang_reflect_Parameter::create(CHECK_NULL); 896 897 if(nullptr != sym) { 898 Handle name = java_lang_String::create_from_symbol(sym, CHECK_NULL); 899 java_lang_reflect_Parameter::set_name(rh(), name()); 900 } else { 901 java_lang_reflect_Parameter::set_name(rh(), nullptr); 902 } 903 904 java_lang_reflect_Parameter::set_modifiers(rh(), flags); 905 java_lang_reflect_Parameter::set_executable(rh(), method()); 906 java_lang_reflect_Parameter::set_index(rh(), index); 907 return rh(); 908 } 909 910 911 static methodHandle resolve_interface_call(InstanceKlass* klass, 912 const methodHandle& method, 913 Klass* recv_klass, 914 Handle receiver, 915 TRAPS) { 916 917 assert(!method.is_null() , "method should not be null"); 918 919 CallInfo info; 920 Symbol* signature = method->signature(); 921 Symbol* name = method->name(); 922 LinkResolver::resolve_interface_call(info, receiver, recv_klass, 923 LinkInfo(klass, name, signature), 924 true, 925 CHECK_(methodHandle())); 926 return methodHandle(THREAD, info.selected_method()); 927 } 928 929 // Conversion 930 static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror) { 931 assert(java_lang_Class::is_primitive(basic_type_mirror), 932 "just checking"); 933 return java_lang_Class::primitive_type(basic_type_mirror); 934 } 935 936 // Narrowing of basic types. Used to create correct jvalues for 937 // boolean, byte, char and short return return values from interpreter 938 // which are returned as ints. Throws IllegalArgumentException. 939 static void narrow(jvalue* value, BasicType narrow_type, TRAPS) { 940 switch (narrow_type) { 941 case T_BOOLEAN: 942 value->z = (jboolean) (value->i & 1); 943 return; 944 case T_BYTE: 945 value->b = (jbyte)value->i; 946 return; 947 case T_CHAR: 948 value->c = (jchar)value->i; 949 return; 950 case T_SHORT: 951 value->s = (jshort)value->i; 952 return; 953 default: 954 break; // fail 955 } 956 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); 957 } 958 959 960 // Method call (shared by invoke_method and invoke_constructor) 961 static oop invoke(InstanceKlass* klass, 962 const methodHandle& reflected_method, 963 Handle receiver, 964 bool override, 965 objArrayHandle ptypes, 966 BasicType rtype, 967 objArrayHandle args, 968 bool is_method_invoke, 969 TRAPS) { 970 971 ResourceMark rm(THREAD); 972 973 methodHandle method; // actual method to invoke 974 Klass* target_klass; // target klass, receiver's klass for non-static 975 976 // Ensure klass is initialized 977 klass->initialize(CHECK_NULL); 978 979 bool is_static = reflected_method->is_static(); 980 if (is_static) { 981 // ignore receiver argument 982 method = reflected_method; 983 target_klass = klass; 984 } else { 985 // check for null receiver 986 if (receiver.is_null()) { 987 THROW_0(vmSymbols::java_lang_NullPointerException()); 988 } 989 // Check class of receiver against class declaring method 990 if (!receiver->is_a(klass)) { 991 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class"); 992 } 993 // target klass is receiver's klass 994 target_klass = receiver->klass(); 995 // no need to resolve if method is private or <init> 996 if (reflected_method->is_private() || reflected_method->name() == vmSymbols::object_initializer_name()) { 997 method = reflected_method; 998 } else { 999 // resolve based on the receiver 1000 if (reflected_method->method_holder()->is_interface()) { 1001 // resolve interface call 1002 // 1003 // Match resolution errors with those thrown due to reflection inlining 1004 // Linktime resolution & IllegalAccessCheck already done by Class.getMethod() 1005 method = resolve_interface_call(klass, reflected_method, target_klass, receiver, THREAD); 1006 if (HAS_PENDING_EXCEPTION) { 1007 // Method resolution threw an exception; wrap it in an InvocationTargetException 1008 oop resolution_exception = PENDING_EXCEPTION; 1009 CLEAR_PENDING_EXCEPTION; 1010 // JVMTI has already reported the pending exception 1011 // JVMTI internal flag reset is needed in order to report InvocationTargetException 1012 JvmtiExport::clear_detected_exception(THREAD); 1013 JavaCallArguments args(Handle(THREAD, resolution_exception)); 1014 THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(), 1015 vmSymbols::throwable_void_signature(), 1016 &args); 1017 } 1018 } else { 1019 // if the method can be overridden, we resolve using the vtable index. 1020 assert(!reflected_method->has_itable_index(), ""); 1021 int index = reflected_method->vtable_index(); 1022 method = reflected_method; 1023 if (index != Method::nonvirtual_vtable_index) { 1024 method = methodHandle(THREAD, target_klass->method_at_vtable(index)); 1025 } 1026 if (!method.is_null()) { 1027 // Check for abstract methods as well 1028 if (method->is_abstract()) { 1029 // new default: 6531596 1030 ResourceMark rm(THREAD); 1031 stringStream ss; 1032 ss.print("'"); 1033 Method::print_external_name(&ss, target_klass, method->name(), method->signature()); 1034 ss.print("'"); 1035 Handle h_origexception = Exceptions::new_exception(THREAD, 1036 vmSymbols::java_lang_AbstractMethodError(), ss.as_string()); 1037 JavaCallArguments args(h_origexception); 1038 THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(), 1039 vmSymbols::throwable_void_signature(), 1040 &args); 1041 } 1042 } 1043 } 1044 } 1045 } 1046 1047 // I believe this is a ShouldNotGetHere case which requires 1048 // an internal vtable bug. If you ever get this please let Karen know. 1049 if (method.is_null()) { 1050 ResourceMark rm(THREAD); 1051 stringStream ss; 1052 ss.print("'"); 1053 Method::print_external_name(&ss, klass, 1054 reflected_method->name(), 1055 reflected_method->signature()); 1056 ss.print("'"); 1057 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), ss.as_string()); 1058 } 1059 1060 assert(ptypes->is_objArray(), "just checking"); 1061 int args_len = args.is_null() ? 0 : args->length(); 1062 // Check number of arguments 1063 if (ptypes->length() != args_len) { 1064 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 1065 "wrong number of arguments"); 1066 } 1067 1068 // Create object to contain parameters for the JavaCall 1069 JavaCallArguments java_args(method->size_of_parameters()); 1070 1071 if (!is_static) { 1072 java_args.push_oop(receiver); 1073 } 1074 1075 for (int i = 0; i < args_len; i++) { 1076 oop type_mirror = ptypes->obj_at(i); 1077 oop arg = args->obj_at(i); 1078 if (java_lang_Class::is_primitive(type_mirror)) { 1079 jvalue value; 1080 BasicType ptype = basic_type_mirror_to_basic_type(type_mirror); 1081 BasicType atype = Reflection::unbox_for_primitive(arg, &value, CHECK_NULL); 1082 if (ptype != atype) { 1083 Reflection::widen(&value, atype, ptype, CHECK_NULL); 1084 } 1085 switch (ptype) { 1086 case T_BOOLEAN: java_args.push_int(value.z); break; 1087 case T_CHAR: java_args.push_int(value.c); break; 1088 case T_BYTE: java_args.push_int(value.b); break; 1089 case T_SHORT: java_args.push_int(value.s); break; 1090 case T_INT: java_args.push_int(value.i); break; 1091 case T_LONG: java_args.push_long(value.j); break; 1092 case T_FLOAT: java_args.push_float(value.f); break; 1093 case T_DOUBLE: java_args.push_double(value.d); break; 1094 default: 1095 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); 1096 } 1097 } else { 1098 if (arg != nullptr) { 1099 Klass* k = java_lang_Class::as_Klass(type_mirror); 1100 if (!arg->is_a(k)) { 1101 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 1102 "argument type mismatch"); 1103 } 1104 } 1105 Handle arg_handle(THREAD, arg); // Create handle for argument 1106 java_args.push_oop(arg_handle); // Push handle 1107 } 1108 } 1109 1110 assert(java_args.size_of_parameters() == method->size_of_parameters(), 1111 "just checking"); 1112 1113 // All oops (including receiver) is passed in as Handles. An potential oop is returned as an 1114 // oop (i.e., NOT as an handle) 1115 JavaValue result(rtype); 1116 JavaCalls::call(&result, method, &java_args, THREAD); 1117 1118 if (HAS_PENDING_EXCEPTION) { 1119 // Method threw an exception; wrap it in an InvocationTargetException 1120 oop target_exception = PENDING_EXCEPTION; 1121 CLEAR_PENDING_EXCEPTION; 1122 // JVMTI has already reported the pending exception 1123 // JVMTI internal flag reset is needed in order to report InvocationTargetException 1124 JvmtiExport::clear_detected_exception(THREAD); 1125 1126 JavaCallArguments args(Handle(THREAD, target_exception)); 1127 THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(), 1128 vmSymbols::throwable_void_signature(), 1129 &args); 1130 } else { 1131 if (rtype == T_BOOLEAN || rtype == T_BYTE || rtype == T_CHAR || rtype == T_SHORT) { 1132 narrow((jvalue*)result.get_value_addr(), rtype, CHECK_NULL); 1133 } 1134 return Reflection::box((jvalue*)result.get_value_addr(), rtype, THREAD); 1135 } 1136 } 1137 1138 // This would be nicer if, say, java.lang.reflect.Method was a subclass 1139 // of java.lang.reflect.Constructor 1140 1141 oop Reflection::invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS) { 1142 oop mirror = java_lang_reflect_Method::clazz(method_mirror); 1143 int slot = java_lang_reflect_Method::slot(method_mirror); 1144 bool override = java_lang_reflect_Method::override(method_mirror) != 0; 1145 objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Method::parameter_types(method_mirror))); 1146 1147 oop return_type_mirror = java_lang_reflect_Method::return_type(method_mirror); 1148 BasicType rtype; 1149 if (java_lang_Class::is_primitive(return_type_mirror)) { 1150 rtype = basic_type_mirror_to_basic_type(return_type_mirror); 1151 } else { 1152 rtype = T_OBJECT; 1153 } 1154 1155 InstanceKlass* klass = InstanceKlass::cast(java_lang_Class::as_Klass(mirror)); 1156 Method* m = klass->method_with_idnum(slot); 1157 if (m == nullptr) { 1158 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke"); 1159 } 1160 methodHandle method(THREAD, m); 1161 1162 return invoke(klass, method, receiver, override, ptypes, rtype, args, true, THREAD); 1163 } 1164 1165 1166 oop Reflection::invoke_constructor(oop constructor_mirror, objArrayHandle args, TRAPS) { 1167 oop mirror = java_lang_reflect_Constructor::clazz(constructor_mirror); 1168 int slot = java_lang_reflect_Constructor::slot(constructor_mirror); 1169 bool override = java_lang_reflect_Constructor::override(constructor_mirror) != 0; 1170 objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Constructor::parameter_types(constructor_mirror))); 1171 1172 InstanceKlass* klass = InstanceKlass::cast(java_lang_Class::as_Klass(mirror)); 1173 Method* m = klass->method_with_idnum(slot); 1174 if (m == nullptr) { 1175 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke"); 1176 } 1177 methodHandle method(THREAD, m); 1178 assert(method->name() == vmSymbols::object_initializer_name(), "invalid constructor"); 1179 1180 // Make sure klass gets initialize 1181 klass->initialize(CHECK_NULL); 1182 1183 // Create new instance (the receiver) 1184 klass->check_valid_for_instantiation(false, CHECK_NULL); 1185 Handle receiver = klass->allocate_instance_handle(CHECK_NULL); 1186 1187 // Ignore result from call and return receiver 1188 invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL); 1189 return receiver(); 1190 }