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/javaClasses.hpp"
  27 #include "classfile/symbolTable.hpp"
  28 #include "classfile/systemDictionary.hpp"
  29 #include "classfile/verifier.hpp"
  30 #include "classfile/vmSymbols.hpp"
  31 #include "interpreter/linkResolver.hpp"
  32 #include "memory/oopFactory.hpp"
  33 #include "memory/resourceArea.hpp"
  34 #include "memory/universe.inline.hpp"
  35 #include "oops/instanceKlass.hpp"
  36 #include "oops/objArrayKlass.hpp"
  37 #include "oops/objArrayOop.hpp"
  38 #include "prims/jvm.h"
  39 #include "prims/jvmtiExport.hpp"
  40 #include "runtime/arguments.hpp"
  41 #include "runtime/handles.inline.hpp"
  42 #include "runtime/javaCalls.hpp"
  43 #include "runtime/reflection.hpp"
  44 #include "runtime/reflectionUtils.hpp"
  45 #include "runtime/signature.hpp"
  46 #include "runtime/vframe.hpp"
  47 
  48 static void trace_class_resolution(Klass* to_class) {
  49   ResourceMark rm;
  50   int line_number = -1;
  51   const char * source_file = NULL;
  52   Klass* caller = NULL;
  53   JavaThread* jthread = JavaThread::current();
  54   if (jthread->has_last_Java_frame()) {
  55     vframeStream vfst(jthread);
  56     // skip over any frames belonging to java.lang.Class
  57     while (!vfst.at_end() &&
  58            vfst.method()->method_holder()->name() == vmSymbols::java_lang_Class()) {
  59       vfst.next();
  60     }
  61     if (!vfst.at_end()) {
  62       // this frame is a likely suspect
  63       caller = vfst.method()->method_holder();
  64       line_number = vfst.method()->line_number_from_bci(vfst.bci());
  65       Symbol* s = vfst.method()->method_holder()->source_file_name();
  66       if (s != NULL) {
  67         source_file = s->as_C_string();
  68       }
  69     }
  70   }
  71   if (caller != NULL) {
  72     const char * from = caller->external_name();
  73     const char * to = to_class->external_name();
  74     // print in a single call to reduce interleaving between threads
  75     if (source_file != NULL) {
  76       tty->print("RESOLVE %s %s %s:%d (reflection)\n", from, to, source_file, line_number);
  77     } else {
  78       tty->print("RESOLVE %s %s (reflection)\n", from, to);
  79     }
  80   }
  81 }
  82 
  83 
  84 oop Reflection::box(jvalue* value, BasicType type, TRAPS) {
  85   if (type == T_VOID) {
  86     return NULL;
  87   }
  88   if (type == T_OBJECT || type == T_ARRAY) {
  89     // regular objects are not boxed
  90     return (oop) value->l;
  91   }
  92   oop result = java_lang_boxing_object::create(type, value, CHECK_NULL);
  93   if (result == NULL) {
  94     THROW_(vmSymbols::java_lang_IllegalArgumentException(), result);
  95   }
  96   return result;
  97 }
  98 
  99 
 100 BasicType Reflection::unbox_for_primitive(oop box, jvalue* value, TRAPS) {
 101   if (box == NULL) {
 102     THROW_(vmSymbols::java_lang_IllegalArgumentException(), T_ILLEGAL);
 103   }
 104   return java_lang_boxing_object::get_value(box, value);
 105 }
 106 
 107 BasicType Reflection::unbox_for_regular_object(oop box, jvalue* value) {
 108   // Note:  box is really the unboxed oop.  It might even be a Short, etc.!
 109   value->l = (jobject) box;
 110   return T_OBJECT;
 111 }
 112 
 113 
 114 void Reflection::widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS) {
 115   assert(wide_type != current_type, "widen should not be called with identical types");
 116   switch (wide_type) {
 117     case T_BOOLEAN:
 118     case T_BYTE:
 119     case T_CHAR:
 120       break;  // fail
 121     case T_SHORT:
 122       switch (current_type) {
 123         case T_BYTE:
 124           value->s = (jshort) value->b;
 125           return;
 126       }
 127       break;  // fail
 128     case T_INT:
 129       switch (current_type) {
 130         case T_BYTE:
 131           value->i = (jint) value->b;
 132           return;
 133         case T_CHAR:
 134           value->i = (jint) value->c;
 135           return;
 136         case T_SHORT:
 137           value->i = (jint) value->s;
 138           return;
 139       }
 140       break;  // fail
 141     case T_LONG:
 142       switch (current_type) {
 143         case T_BYTE:
 144           value->j = (jlong) value->b;
 145           return;
 146         case T_CHAR:
 147           value->j = (jlong) value->c;
 148           return;
 149         case T_SHORT:
 150           value->j = (jlong) value->s;
 151           return;
 152         case T_INT:
 153           value->j = (jlong) value->i;
 154           return;
 155       }
 156       break;  // fail
 157     case T_FLOAT:
 158       switch (current_type) {
 159         case T_BYTE:
 160           value->f = (jfloat) value->b;
 161           return;
 162         case T_CHAR:
 163           value->f = (jfloat) value->c;
 164           return;
 165         case T_SHORT:
 166           value->f = (jfloat) value->s;
 167           return;
 168         case T_INT:
 169           value->f = (jfloat) value->i;
 170           return;
 171         case T_LONG:
 172           value->f = (jfloat) value->j;
 173           return;
 174       }
 175       break;  // fail
 176     case T_DOUBLE:
 177       switch (current_type) {
 178         case T_BYTE:
 179           value->d = (jdouble) value->b;
 180           return;
 181         case T_CHAR:
 182           value->d = (jdouble) value->c;
 183           return;
 184         case T_SHORT:
 185           value->d = (jdouble) value->s;
 186           return;
 187         case T_INT:
 188           value->d = (jdouble) value->i;
 189           return;
 190         case T_FLOAT:
 191           value->d = (jdouble) value->f;
 192           return;
 193         case T_LONG:
 194           value->d = (jdouble) value->j;
 195           return;
 196       }
 197       break;  // fail
 198     default:
 199       break;  // fail
 200   }
 201   THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
 202 }
 203 
 204 
 205 BasicType Reflection::array_get(jvalue* value, arrayOop a, int index, TRAPS) {
 206   if (!a->is_within_bounds(index)) {
 207     THROW_(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), T_ILLEGAL);
 208   }
 209   if (a->is_objArray()) {
 210     value->l = (jobject) objArrayOop(a)->obj_at(index);
 211     return T_OBJECT;
 212   } else {
 213     assert(a->is_typeArray(), "just checking");
 214     BasicType type = TypeArrayKlass::cast(a->klass())->element_type();
 215     switch (type) {
 216       case T_BOOLEAN:
 217         value->z = typeArrayOop(a)->bool_at(index);
 218         break;
 219       case T_CHAR:
 220         value->c = typeArrayOop(a)->char_at(index);
 221         break;
 222       case T_FLOAT:
 223         value->f = typeArrayOop(a)->float_at(index);
 224         break;
 225       case T_DOUBLE:
 226         value->d = typeArrayOop(a)->double_at(index);
 227         break;
 228       case T_BYTE:
 229         value->b = typeArrayOop(a)->byte_at(index);
 230         break;
 231       case T_SHORT:
 232         value->s = typeArrayOop(a)->short_at(index);
 233         break;
 234       case T_INT:
 235         value->i = typeArrayOop(a)->int_at(index);
 236         break;
 237       case T_LONG:
 238         value->j = typeArrayOop(a)->long_at(index);
 239         break;
 240       default:
 241         return T_ILLEGAL;
 242     }
 243     return type;
 244   }
 245 }
 246 
 247 
 248 void Reflection::array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS) {
 249   if (!a->is_within_bounds(index)) {
 250     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
 251   }
 252   if (a->is_objArray()) {
 253     if (value_type == T_OBJECT) {
 254       oop obj = (oop) value->l;
 255       if (obj != NULL) {
 256         Klass* element_klass = ObjArrayKlass::cast(a->klass())->element_klass();
 257         if (!obj->is_a(element_klass)) {
 258           THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "array element type mismatch");
 259         }
 260       }
 261       objArrayOop(a)->obj_at_put(index, obj);
 262     }
 263   } else {
 264     assert(a->is_typeArray(), "just checking");
 265     BasicType array_type = TypeArrayKlass::cast(a->klass())->element_type();
 266     if (array_type != value_type) {
 267       // The widen operation can potentially throw an exception, but cannot block,
 268       // so typeArrayOop a is safe if the call succeeds.
 269       widen(value, value_type, array_type, CHECK);
 270     }
 271     switch (array_type) {
 272       case T_BOOLEAN:
 273         typeArrayOop(a)->bool_at_put(index, value->z);
 274         break;
 275       case T_CHAR:
 276         typeArrayOop(a)->char_at_put(index, value->c);
 277         break;
 278       case T_FLOAT:
 279         typeArrayOop(a)->float_at_put(index, value->f);
 280         break;
 281       case T_DOUBLE:
 282         typeArrayOop(a)->double_at_put(index, value->d);
 283         break;
 284       case T_BYTE:
 285         typeArrayOop(a)->byte_at_put(index, value->b);
 286         break;
 287       case T_SHORT:
 288         typeArrayOop(a)->short_at_put(index, value->s);
 289         break;
 290       case T_INT:
 291         typeArrayOop(a)->int_at_put(index, value->i);
 292         break;
 293       case T_LONG:
 294         typeArrayOop(a)->long_at_put(index, value->j);
 295         break;
 296       default:
 297         THROW(vmSymbols::java_lang_IllegalArgumentException());
 298     }
 299   }
 300 }
 301 
 302 
 303 Klass* Reflection::basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS) {
 304   assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking");
 305   BasicType type = java_lang_Class::primitive_type(basic_type_mirror);
 306   if (type == T_VOID) {
 307     THROW_0(vmSymbols::java_lang_IllegalArgumentException());
 308   } else {
 309     return Universe::typeArrayKlassObj(type);
 310   }
 311 }
 312 
 313 
 314 oop Reflection:: basic_type_arrayklass_to_mirror(Klass* basic_type_arrayklass, TRAPS) {
 315   BasicType type = TypeArrayKlass::cast(basic_type_arrayklass)->element_type();
 316   return Universe::java_mirror(type);
 317 }
 318 
 319 
 320 arrayOop Reflection::reflect_new_array(oop element_mirror, jint length, TRAPS) {
 321   if (element_mirror == NULL) {
 322     THROW_0(vmSymbols::java_lang_NullPointerException());
 323   }
 324   if (length < 0) {
 325     THROW_0(vmSymbols::java_lang_NegativeArraySizeException());
 326   }
 327   if (java_lang_Class::is_primitive(element_mirror)) {
 328     Klass* tak = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL);
 329     return TypeArrayKlass::cast(tak)->allocate(length, THREAD);
 330   } else {
 331     Klass* k = java_lang_Class::as_Klass(element_mirror);
 332     if (k->oop_is_array() && ArrayKlass::cast(k)->dimension() >= MAX_DIM) {
 333       THROW_0(vmSymbols::java_lang_IllegalArgumentException());
 334     }
 335     return oopFactory::new_objArray(k, length, THREAD);
 336   }
 337 }
 338 
 339 
 340 arrayOop Reflection::reflect_new_multi_array(oop element_mirror, typeArrayOop dim_array, TRAPS) {
 341   assert(dim_array->is_typeArray(), "just checking");
 342   assert(TypeArrayKlass::cast(dim_array->klass())->element_type() == T_INT, "just checking");
 343 
 344   if (element_mirror == NULL) {
 345     THROW_0(vmSymbols::java_lang_NullPointerException());
 346   }
 347 
 348   int len = dim_array->length();
 349   if (len <= 0 || len > MAX_DIM) {
 350     THROW_0(vmSymbols::java_lang_IllegalArgumentException());
 351   }
 352 
 353   jint dimensions[MAX_DIM];   // C array copy of intArrayOop
 354   for (int i = 0; i < len; i++) {
 355     int d = dim_array->int_at(i);
 356     if (d < 0) {
 357       THROW_0(vmSymbols::java_lang_NegativeArraySizeException());
 358     }
 359     dimensions[i] = d;
 360   }
 361 
 362   Klass* klass;
 363   int dim = len;
 364   if (java_lang_Class::is_primitive(element_mirror)) {
 365     klass = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL);
 366   } else {
 367     klass = java_lang_Class::as_Klass(element_mirror);
 368     if (klass->oop_is_array()) {
 369       int k_dim = ArrayKlass::cast(klass)->dimension();
 370       if (k_dim + len > MAX_DIM) {
 371         THROW_0(vmSymbols::java_lang_IllegalArgumentException());
 372       }
 373       dim += k_dim;
 374     }
 375   }
 376   klass = klass->array_klass(dim, CHECK_NULL);
 377   oop obj = ArrayKlass::cast(klass)->multi_allocate(len, dimensions, CHECK_NULL);
 378   assert(obj->is_array(), "just checking");
 379   return arrayOop(obj);
 380 }
 381 
 382 
 383 oop Reflection::array_component_type(oop mirror, TRAPS) {
 384   if (java_lang_Class::is_primitive(mirror)) {
 385     return NULL;
 386   }
 387 
 388   Klass* klass = java_lang_Class::as_Klass(mirror);
 389   if (!klass->oop_is_array()) {
 390     return NULL;
 391   }
 392 
 393   oop result = ArrayKlass::cast(klass)->component_mirror();
 394 #ifdef ASSERT
 395   oop result2 = NULL;
 396   if (ArrayKlass::cast(klass)->dimension() == 1) {
 397     if (klass->oop_is_typeArray()) {
 398       result2 = basic_type_arrayklass_to_mirror(klass, CHECK_NULL);
 399     } else {
 400       result2 = ObjArrayKlass::cast(klass)->element_klass()->java_mirror();
 401     }
 402   } else {
 403     Klass* lower_dim = ArrayKlass::cast(klass)->lower_dimension();
 404     assert(lower_dim->oop_is_array(), "just checking");
 405     result2 = lower_dim->java_mirror();
 406   }
 407   assert(oopDesc::equals(result, result2), "results must be consistent");
 408 #endif //ASSERT
 409   return result;
 410 }
 411 
 412 
 413 bool Reflection::reflect_check_access(Klass* field_class, AccessFlags acc, Klass* target_class, bool is_method_invoke, TRAPS) {
 414   // field_class  : declaring class
 415   // acc          : declared field access
 416   // target_class : for protected
 417 
 418   // Check if field or method is accessible to client.  Throw an
 419   // IllegalAccessException and return false if not.
 420 
 421   // The "client" is the class associated with the nearest real frame
 422   // getCallerClass already skips Method.invoke frames, so pass 0 in
 423   // that case (same as classic).
 424   ResourceMark rm(THREAD);
 425   assert(THREAD->is_Java_thread(), "sanity check");
 426   Klass* client_class = ((JavaThread *)THREAD)->security_get_caller_class(is_method_invoke ? 0 : 1);
 427 
 428   if (client_class != field_class) {
 429     if (!verify_class_access(client_class, field_class, false)
 430         || !verify_field_access(client_class,
 431                                 field_class,
 432                                 field_class,
 433                                 acc,
 434                                 false)) {
 435       THROW_(vmSymbols::java_lang_IllegalAccessException(), false);
 436     }
 437   }
 438 
 439   // Additional test for protected members: JLS 6.6.2
 440 
 441   if (acc.is_protected()) {
 442     if (target_class != client_class) {
 443       if (!is_same_class_package(client_class, field_class)) {
 444         if (!target_class->is_subclass_of(client_class)) {
 445           THROW_(vmSymbols::java_lang_IllegalAccessException(), false);
 446         }
 447       }
 448     }
 449   }
 450 
 451   // Passed all tests
 452   return true;
 453 }
 454 
 455 
 456 bool Reflection::verify_class_access(Klass* current_class, Klass* new_class, bool classloader_only) {
 457   // Verify that current_class can access new_class.  If the classloader_only
 458   // flag is set, we automatically allow any accesses in which current_class
 459   // doesn't have a classloader.
 460   if ((current_class == NULL) ||
 461       (current_class == new_class) ||
 462       (new_class->is_public()) ||
 463       is_same_class_package(current_class, new_class)) {
 464     return true;
 465   }
 466   // New (1.4) reflection implementation. Allow all accesses from
 467   // sun/reflect/MagicAccessorImpl subclasses to succeed trivially.
 468   if (   JDK_Version::is_gte_jdk14x_version()
 469       && UseNewReflection
 470       && current_class->is_subclass_of(SystemDictionary::reflect_MagicAccessorImpl_klass())) {
 471     return true;
 472   }
 473 
 474   return can_relax_access_check_for(current_class, new_class, classloader_only);
 475 }
 476 
 477 static bool under_host_klass(InstanceKlass* ik, Klass* host_klass) {
 478   DEBUG_ONLY(int inf_loop_check = 1000 * 1000 * 1000);
 479   for (;;) {
 480     Klass* hc = (Klass*) ik->host_klass();
 481     if (hc == NULL)        return false;
 482     if (hc == host_klass)  return true;
 483     ik = InstanceKlass::cast(hc);
 484 
 485     // There's no way to make a host class loop short of patching memory.
 486     // Therefore there cannot be a loop here unless there's another bug.
 487     // Still, let's check for it.
 488     assert(--inf_loop_check > 0, "no host_klass loop");
 489   }
 490 }
 491 
 492 bool Reflection::can_relax_access_check_for(
 493     Klass* accessor, Klass* accessee, bool classloader_only) {
 494   InstanceKlass* accessor_ik = InstanceKlass::cast(accessor);
 495   InstanceKlass* accessee_ik  = InstanceKlass::cast(accessee);
 496 
 497   // If either is on the other's host_klass chain, access is OK,
 498   // because one is inside the other.
 499   if (under_host_klass(accessor_ik, accessee) ||
 500       under_host_klass(accessee_ik, accessor))
 501     return true;
 502 
 503   if ((RelaxAccessControlCheck &&
 504         accessor_ik->major_version() < Verifier::NO_RELAX_ACCESS_CTRL_CHECK_VERSION &&
 505         accessee_ik->major_version() < Verifier::NO_RELAX_ACCESS_CTRL_CHECK_VERSION) ||
 506       (accessor_ik->major_version() < Verifier::STRICTER_ACCESS_CTRL_CHECK_VERSION &&
 507        accessee_ik->major_version() < Verifier::STRICTER_ACCESS_CTRL_CHECK_VERSION)) {
 508     return classloader_only &&
 509       Verifier::relax_verify_for(accessor_ik->class_loader()) &&
 510       accessor_ik->protection_domain() == accessee_ik->protection_domain() &&
 511       accessor_ik->class_loader() == accessee_ik->class_loader();
 512   } else {
 513     return false;
 514   }
 515 }
 516 
 517 bool Reflection::verify_field_access(Klass* current_class,
 518                                      Klass* resolved_class,
 519                                      Klass* field_class,
 520                                      AccessFlags access,
 521                                      bool classloader_only,
 522                                      bool protected_restriction) {
 523   // Verify that current_class can access a field of field_class, where that
 524   // field's access bits are "access".  We assume that we've already verified
 525   // that current_class can access field_class.
 526   //
 527   // If the classloader_only flag is set, we automatically allow any accesses
 528   // in which current_class doesn't have a classloader.
 529   //
 530   // "resolved_class" is the runtime type of "field_class". Sometimes we don't
 531   // need this distinction (e.g. if all we have is the runtime type, or during
 532   // class file parsing when we only care about the static type); in that case
 533   // callers should ensure that resolved_class == field_class.
 534   //
 535   if ((current_class == NULL) ||
 536       (current_class == field_class) ||
 537       access.is_public()) {
 538     return true;
 539   }
 540 
 541   Klass* host_class = current_class;
 542   while (host_class->oop_is_instance() &&
 543          InstanceKlass::cast(host_class)->is_anonymous()) {
 544     Klass* next_host_class = InstanceKlass::cast(host_class)->host_klass();
 545     if (next_host_class == NULL)  break;
 546     host_class = next_host_class;
 547   }
 548   if (host_class == field_class) {
 549     return true;
 550   }
 551 
 552   if (access.is_protected()) {
 553     if (!protected_restriction) {
 554       // See if current_class (or outermost host class) is a subclass of field_class
 555       // An interface may not access protected members of j.l.Object
 556       if (!host_class->is_interface() && host_class->is_subclass_of(field_class)) {
 557         if (access.is_static() || // static fields are ok, see 6622385
 558             current_class == resolved_class ||
 559             field_class == resolved_class ||
 560             host_class->is_subclass_of(resolved_class) ||
 561             resolved_class->is_subclass_of(host_class)) {
 562           return true;
 563         }
 564       }
 565     }
 566   }
 567 
 568   if (!access.is_private() && is_same_class_package(current_class, field_class)) {
 569     return true;
 570   }
 571 
 572   // New (1.4) reflection implementation. Allow all accesses from
 573   // sun/reflect/MagicAccessorImpl subclasses to succeed trivially.
 574   if (   JDK_Version::is_gte_jdk14x_version()
 575       && UseNewReflection
 576       && current_class->is_subclass_of(SystemDictionary::reflect_MagicAccessorImpl_klass())) {
 577     return true;
 578   }
 579 
 580   return can_relax_access_check_for(
 581     current_class, field_class, classloader_only);
 582 }
 583 
 584 
 585 bool Reflection::is_same_class_package(Klass* class1, Klass* class2) {
 586   return InstanceKlass::cast(class1)->is_same_class_package(class2);
 587 }
 588 
 589 bool Reflection::is_same_package_member(Klass* class1, Klass* class2, TRAPS) {
 590   return InstanceKlass::cast(class1)->is_same_package_member(class2, THREAD);
 591 }
 592 
 593 
 594 // Checks that the 'outer' klass has declared 'inner' as being an inner klass. If not,
 595 // throw an incompatible class change exception
 596 // If inner_is_member, require the inner to be a member of the outer.
 597 // If !inner_is_member, require the inner to be anonymous (a non-member).
 598 // Caller is responsible for figuring out in advance which case must be true.
 599 void Reflection::check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner,
 600                                        bool inner_is_member, TRAPS) {
 601   InnerClassesIterator iter(outer);
 602   constantPoolHandle cp   (THREAD, outer->constants());
 603   for (; !iter.done(); iter.next()) {
 604      int ioff = iter.inner_class_info_index();
 605      int ooff = iter.outer_class_info_index();
 606 
 607      if (inner_is_member && ioff != 0 && ooff != 0) {
 608         Klass* o = cp->klass_at(ooff, CHECK);
 609         if (o == outer()) {
 610           Klass* i = cp->klass_at(ioff, CHECK);
 611           if (i == inner()) {
 612             return;
 613           }
 614         }
 615      }
 616      if (!inner_is_member && ioff != 0 && ooff == 0 &&
 617          cp->klass_name_at_matches(inner, ioff)) {
 618         Klass* i = cp->klass_at(ioff, CHECK);
 619         if (i == inner()) {
 620           return;
 621         }
 622      }
 623   }
 624 
 625   // 'inner' not declared as an inner klass in outer
 626   ResourceMark rm(THREAD);
 627   Exceptions::fthrow(
 628     THREAD_AND_LOCATION,
 629     vmSymbols::java_lang_IncompatibleClassChangeError(),
 630     "%s and %s disagree on InnerClasses attribute",
 631     outer->external_name(),
 632     inner->external_name()
 633   );
 634 }
 635 
 636 // Utility method converting a single SignatureStream element into java.lang.Class instance
 637 
 638 oop get_mirror_from_signature(methodHandle method, SignatureStream* ss, TRAPS) {
 639   switch (ss->type()) {
 640     default:
 641       assert(ss->type() != T_VOID || ss->at_return_type(), "T_VOID should only appear as return type");
 642       return java_lang_Class::primitive_mirror(ss->type());
 643     case T_OBJECT:
 644     case T_ARRAY:
 645       Symbol* name        = ss->as_symbol(CHECK_NULL);
 646       oop loader            = method->method_holder()->class_loader();
 647       oop protection_domain = method->method_holder()->protection_domain();
 648       Klass* k = SystemDictionary::resolve_or_fail(
 649                                        name,
 650                                        Handle(THREAD, loader),
 651                                        Handle(THREAD, protection_domain),
 652                                        true, CHECK_NULL);
 653       if (TraceClassResolution) {
 654         trace_class_resolution(k);
 655       }
 656       return k->java_mirror();
 657   };
 658 }
 659 
 660 
 661 objArrayHandle Reflection::get_parameter_types(methodHandle method, int parameter_count, oop* return_type, TRAPS) {
 662   // Allocate array holding parameter types (java.lang.Class instances)
 663   objArrayOop m = oopFactory::new_objArray(SystemDictionary::Class_klass(), parameter_count, CHECK_(objArrayHandle()));
 664   objArrayHandle mirrors (THREAD, m);
 665   int index = 0;
 666   // Collect parameter types
 667   ResourceMark rm(THREAD);
 668   Symbol*  signature  = method->signature();
 669   SignatureStream ss(signature);
 670   while (!ss.at_return_type()) {
 671     oop mirror = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle()));
 672     mirrors->obj_at_put(index++, mirror);
 673     ss.next();
 674   }
 675   assert(index == parameter_count, "invalid parameter count");
 676   if (return_type != NULL) {
 677     // Collect return type as well
 678     assert(ss.at_return_type(), "return type should be present");
 679     *return_type = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle()));
 680   }
 681   return mirrors;
 682 }
 683 
 684 objArrayHandle Reflection::get_exception_types(methodHandle method, TRAPS) {
 685   return method->resolved_checked_exceptions(CHECK_(objArrayHandle()));
 686 }
 687 
 688 
 689 Handle Reflection::new_type(Symbol* signature, KlassHandle k, TRAPS) {
 690   // Basic types
 691   BasicType type = vmSymbols::signature_type(signature);
 692   if (type != T_OBJECT) {
 693     return Handle(THREAD, Universe::java_mirror(type));
 694   }
 695 
 696   oop loader = InstanceKlass::cast(k())->class_loader();
 697   oop protection_domain = k()->protection_domain();
 698   Klass* result = SystemDictionary::resolve_or_fail(signature,
 699                                     Handle(THREAD, loader),
 700                                     Handle(THREAD, protection_domain),
 701                                     true, CHECK_(Handle()));
 702 
 703   if (TraceClassResolution) {
 704     trace_class_resolution(result);
 705   }
 706 
 707   oop nt = result->java_mirror();
 708   return Handle(THREAD, nt);
 709 }
 710 
 711 
 712 oop Reflection::new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS) {
 713   // In jdk1.2.x, getMethods on an interface erroneously includes <clinit>, thus the complicated assert.
 714   // Also allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods.
 715   assert(!method()->is_initializer() ||
 716          (for_constant_pool_access && method()->is_static()) ||
 717          (method()->name() == vmSymbols::class_initializer_name()
 718     && method()->method_holder()->is_interface() && JDK_Version::is_jdk12x_version()), "should call new_constructor instead");
 719   instanceKlassHandle holder (THREAD, method->method_holder());
 720   int slot = method->method_idnum();
 721 
 722   Symbol*  signature  = method->signature();
 723   int parameter_count = ArgumentCount(signature).size();
 724   oop return_type_oop = NULL;
 725   objArrayHandle parameter_types = get_parameter_types(method, parameter_count, &return_type_oop, CHECK_NULL);
 726   if (parameter_types.is_null() || return_type_oop == NULL) return NULL;
 727 
 728   Handle return_type(THREAD, return_type_oop);
 729 
 730   objArrayHandle exception_types = get_exception_types(method, CHECK_NULL);
 731 
 732   if (exception_types.is_null()) return NULL;
 733 
 734   Symbol*  method_name = method->name();
 735   Handle name;
 736   if (intern_name) {
 737     // intern_name is only true with UseNewReflection
 738     oop name_oop = StringTable::intern(method_name, CHECK_NULL);
 739     name = Handle(THREAD, name_oop);
 740   } else {
 741     name = java_lang_String::create_from_symbol(method_name, CHECK_NULL);
 742   }
 743   if (name == NULL) return NULL;
 744 
 745   int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
 746 
 747   Handle mh = java_lang_reflect_Method::create(CHECK_NULL);
 748 
 749   java_lang_reflect_Method::set_clazz(mh(), holder->java_mirror());
 750   java_lang_reflect_Method::set_slot(mh(), slot);
 751   java_lang_reflect_Method::set_name(mh(), name());
 752   java_lang_reflect_Method::set_return_type(mh(), return_type());
 753   java_lang_reflect_Method::set_parameter_types(mh(), parameter_types());
 754   java_lang_reflect_Method::set_exception_types(mh(), exception_types());
 755   java_lang_reflect_Method::set_modifiers(mh(), modifiers);
 756   java_lang_reflect_Method::set_override(mh(), false);
 757   if (java_lang_reflect_Method::has_signature_field() &&
 758       method->generic_signature() != NULL) {
 759     Symbol*  gs = method->generic_signature();
 760     Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
 761     java_lang_reflect_Method::set_signature(mh(), sig());
 762   }
 763   if (java_lang_reflect_Method::has_annotations_field()) {
 764     typeArrayOop an_oop = Annotations::make_java_array(method->annotations(), CHECK_NULL);
 765     java_lang_reflect_Method::set_annotations(mh(), an_oop);
 766   }
 767   if (java_lang_reflect_Method::has_parameter_annotations_field()) {
 768     typeArrayOop an_oop = Annotations::make_java_array(method->parameter_annotations(), CHECK_NULL);
 769     java_lang_reflect_Method::set_parameter_annotations(mh(), an_oop);
 770   }
 771   if (java_lang_reflect_Method::has_annotation_default_field()) {
 772     typeArrayOop an_oop = Annotations::make_java_array(method->annotation_default(), CHECK_NULL);
 773     java_lang_reflect_Method::set_annotation_default(mh(), an_oop);
 774   }
 775   if (java_lang_reflect_Method::has_type_annotations_field()) {
 776     typeArrayOop an_oop = Annotations::make_java_array(method->type_annotations(), CHECK_NULL);
 777     java_lang_reflect_Method::set_type_annotations(mh(), an_oop);
 778   }
 779   return mh();
 780 }
 781 
 782 
 783 oop Reflection::new_constructor(methodHandle method, TRAPS) {
 784   assert(method()->is_initializer(), "should call new_method instead");
 785 
 786   instanceKlassHandle  holder (THREAD, method->method_holder());
 787   int slot = method->method_idnum();
 788 
 789   Symbol*  signature  = method->signature();
 790   int parameter_count = ArgumentCount(signature).size();
 791   objArrayHandle parameter_types = get_parameter_types(method, parameter_count, NULL, CHECK_NULL);
 792   if (parameter_types.is_null()) return NULL;
 793 
 794   objArrayHandle exception_types = get_exception_types(method, CHECK_NULL);
 795   if (exception_types.is_null()) return NULL;
 796 
 797   int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
 798 
 799   Handle ch = java_lang_reflect_Constructor::create(CHECK_NULL);
 800 
 801   java_lang_reflect_Constructor::set_clazz(ch(), holder->java_mirror());
 802   java_lang_reflect_Constructor::set_slot(ch(), slot);
 803   java_lang_reflect_Constructor::set_parameter_types(ch(), parameter_types());
 804   java_lang_reflect_Constructor::set_exception_types(ch(), exception_types());
 805   java_lang_reflect_Constructor::set_modifiers(ch(), modifiers);
 806   java_lang_reflect_Constructor::set_override(ch(), false);
 807   if (java_lang_reflect_Constructor::has_signature_field() &&
 808       method->generic_signature() != NULL) {
 809     Symbol*  gs = method->generic_signature();
 810     Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
 811     java_lang_reflect_Constructor::set_signature(ch(), sig());
 812   }
 813   if (java_lang_reflect_Constructor::has_annotations_field()) {
 814     typeArrayOop an_oop = Annotations::make_java_array(method->annotations(), CHECK_NULL);
 815     java_lang_reflect_Constructor::set_annotations(ch(), an_oop);
 816   }
 817   if (java_lang_reflect_Constructor::has_parameter_annotations_field()) {
 818     typeArrayOop an_oop = Annotations::make_java_array(method->parameter_annotations(), CHECK_NULL);
 819     java_lang_reflect_Constructor::set_parameter_annotations(ch(), an_oop);
 820   }
 821   if (java_lang_reflect_Constructor::has_type_annotations_field()) {
 822     typeArrayOop an_oop = Annotations::make_java_array(method->type_annotations(), CHECK_NULL);
 823     java_lang_reflect_Constructor::set_type_annotations(ch(), an_oop);
 824   }
 825   return ch();
 826 }
 827 
 828 
 829 oop Reflection::new_field(fieldDescriptor* fd, bool intern_name, TRAPS) {
 830   Symbol*  field_name = fd->name();
 831   Handle name;
 832   if (intern_name) {
 833     // intern_name is only true with UseNewReflection
 834     oop name_oop = StringTable::intern(field_name, CHECK_NULL);
 835     name = Handle(THREAD, name_oop);
 836   } else {
 837     name = java_lang_String::create_from_symbol(field_name, CHECK_NULL);
 838   }
 839   Symbol*  signature  = fd->signature();
 840   instanceKlassHandle  holder    (THREAD, fd->field_holder());
 841   Handle type = new_type(signature, holder, CHECK_NULL);
 842   Handle rh  = java_lang_reflect_Field::create(CHECK_NULL);
 843 
 844   java_lang_reflect_Field::set_clazz(rh(), fd->field_holder()->java_mirror());
 845   java_lang_reflect_Field::set_slot(rh(), fd->index());
 846   java_lang_reflect_Field::set_name(rh(), name());
 847   java_lang_reflect_Field::set_type(rh(), type());
 848   // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here.
 849   java_lang_reflect_Field::set_modifiers(rh(), fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS);
 850   java_lang_reflect_Field::set_override(rh(), false);
 851   if (java_lang_reflect_Field::has_signature_field() &&
 852       fd->has_generic_signature()) {
 853     Symbol*  gs = fd->generic_signature();
 854     Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
 855     java_lang_reflect_Field::set_signature(rh(), sig());
 856   }
 857   if (java_lang_reflect_Field::has_annotations_field()) {
 858     typeArrayOop an_oop = Annotations::make_java_array(fd->annotations(), CHECK_NULL);
 859     java_lang_reflect_Field::set_annotations(rh(), an_oop);
 860   }
 861   if (java_lang_reflect_Field::has_type_annotations_field()) {
 862     typeArrayOop an_oop = Annotations::make_java_array(fd->type_annotations(), CHECK_NULL);
 863     java_lang_reflect_Field::set_type_annotations(rh(), an_oop);
 864   }
 865   return rh();
 866 }
 867 
 868 oop Reflection::new_parameter(Handle method, int index, Symbol* sym,
 869                               int flags, TRAPS) {
 870   Handle name;
 871 
 872   // A null symbol here translates to the empty string
 873   if(NULL != sym) {
 874     name = java_lang_String::create_from_symbol(sym, CHECK_NULL);
 875   } else {
 876     name = java_lang_String::create_from_str("", CHECK_NULL);
 877   }
 878 
 879   Handle rh = java_lang_reflect_Parameter::create(CHECK_NULL);
 880   java_lang_reflect_Parameter::set_name(rh(), name());
 881   java_lang_reflect_Parameter::set_modifiers(rh(), flags);
 882   java_lang_reflect_Parameter::set_executable(rh(), method());
 883   java_lang_reflect_Parameter::set_index(rh(), index);
 884   return rh();
 885 }
 886 
 887 
 888 methodHandle Reflection::resolve_interface_call(instanceKlassHandle klass, methodHandle method,
 889                                                 KlassHandle recv_klass, Handle receiver, TRAPS) {
 890   assert(!method.is_null() , "method should not be null");
 891 
 892   CallInfo info;
 893   Symbol*  signature  = method->signature();
 894   Symbol*  name       = method->name();
 895   LinkResolver::resolve_interface_call(info, receiver, recv_klass, klass,
 896                                        name, signature,
 897                                        KlassHandle(), false, true,
 898                                        CHECK_(methodHandle()));
 899   return info.selected_method();
 900 }
 901 
 902 
 903 oop Reflection::invoke(instanceKlassHandle klass, methodHandle reflected_method,
 904                        Handle receiver, bool override, objArrayHandle ptypes,
 905                        BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS) {
 906   ResourceMark rm(THREAD);
 907 
 908   methodHandle method;      // actual method to invoke
 909   KlassHandle target_klass; // target klass, receiver's klass for non-static
 910 
 911   // Ensure klass is initialized
 912   klass->initialize(CHECK_NULL);
 913 
 914   bool is_static = reflected_method->is_static();
 915   if (is_static) {
 916     // ignore receiver argument
 917     method = reflected_method;
 918     target_klass = klass;
 919   } else {
 920     // check for null receiver
 921     if (receiver.is_null()) {
 922       THROW_0(vmSymbols::java_lang_NullPointerException());
 923     }
 924     // Check class of receiver against class declaring method
 925     if (!receiver->is_a(klass())) {
 926       THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class");
 927     }
 928     // target klass is receiver's klass
 929     target_klass = KlassHandle(THREAD, receiver->klass());
 930     // no need to resolve if method is private or <init>
 931     if (reflected_method->is_private() || reflected_method->name() == vmSymbols::object_initializer_name()) {
 932       method = reflected_method;
 933     } else {
 934       // resolve based on the receiver
 935       if (reflected_method->method_holder()->is_interface()) {
 936         // resolve interface call
 937         if (ReflectionWrapResolutionErrors) {
 938           // new default: 6531596
 939           // Match resolution errors with those thrown due to reflection inlining
 940           // Linktime resolution & IllegalAccessCheck already done by Class.getMethod()
 941           method = resolve_interface_call(klass, reflected_method, target_klass, receiver, THREAD);
 942           if (HAS_PENDING_EXCEPTION) {
 943           // Method resolution threw an exception; wrap it in an InvocationTargetException
 944             oop resolution_exception = PENDING_EXCEPTION;
 945             CLEAR_PENDING_EXCEPTION;
 946             // JVMTI has already reported the pending exception
 947             // JVMTI internal flag reset is needed in order to report InvocationTargetException
 948             if (THREAD->is_Java_thread()) {
 949               JvmtiExport::clear_detected_exception((JavaThread*) THREAD);
 950             }
 951             JavaCallArguments args(Handle(THREAD, resolution_exception));
 952             THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(),
 953                 vmSymbols::throwable_void_signature(),
 954                 &args);
 955           }
 956         } else {
 957           method = resolve_interface_call(klass, reflected_method, target_klass, receiver, CHECK_(NULL));
 958         }
 959       }  else {
 960         // if the method can be overridden, we resolve using the vtable index.
 961         assert(!reflected_method->has_itable_index(), "");
 962         int index = reflected_method->vtable_index();
 963         method = reflected_method;
 964         if (index != Method::nonvirtual_vtable_index) {
 965           // target_klass might be an arrayKlassOop but all vtables start at
 966           // the same place. The cast is to avoid virtual call and assertion.
 967           InstanceKlass* inst = (InstanceKlass*)target_klass();
 968           method = methodHandle(THREAD, inst->method_at_vtable(index));
 969         }
 970         if (!method.is_null()) {
 971           // Check for abstract methods as well
 972           if (method->is_abstract()) {
 973             // new default: 6531596
 974             if (ReflectionWrapResolutionErrors) {
 975               ResourceMark rm(THREAD);
 976               Handle h_origexception = Exceptions::new_exception(THREAD,
 977                      vmSymbols::java_lang_AbstractMethodError(),
 978                      Method::name_and_sig_as_C_string(target_klass(),
 979                      method->name(),
 980                      method->signature()));
 981               JavaCallArguments args(h_origexception);
 982               THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(),
 983                 vmSymbols::throwable_void_signature(),
 984                 &args);
 985             } else {
 986               ResourceMark rm(THREAD);
 987               THROW_MSG_0(vmSymbols::java_lang_AbstractMethodError(),
 988                         Method::name_and_sig_as_C_string(target_klass(),
 989                                                                 method->name(),
 990                                                                 method->signature()));
 991             }
 992           }
 993         }
 994       }
 995     }
 996   }
 997 
 998   // I believe this is a ShouldNotGetHere case which requires
 999   // an internal vtable bug. If you ever get this please let Karen know.
1000   if (method.is_null()) {
1001     ResourceMark rm(THREAD);
1002     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(),
1003                 Method::name_and_sig_as_C_string(klass(),
1004                                                         reflected_method->name(),
1005                                                         reflected_method->signature()));
1006   }
1007 
1008   // In the JDK 1.4 reflection implementation, the security check is
1009   // done at the Java level
1010   if (!(JDK_Version::is_gte_jdk14x_version() && UseNewReflection)) {
1011 
1012   // Access checking (unless overridden by Method)
1013   if (!override) {
1014     if (!(klass->is_public() && reflected_method->is_public())) {
1015       bool access = Reflection::reflect_check_access(klass(), reflected_method->access_flags(), target_klass(), is_method_invoke, CHECK_NULL);
1016       if (!access) {
1017         return NULL; // exception
1018       }
1019     }
1020   }
1021 
1022   } // !(Universe::is_gte_jdk14x_version() && UseNewReflection)
1023 
1024   assert(ptypes->is_objArray(), "just checking");
1025   int args_len = args.is_null() ? 0 : args->length();
1026   // Check number of arguments
1027   if (ptypes->length() != args_len) {
1028     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "wrong number of arguments");
1029   }
1030 
1031   // Create object to contain parameters for the JavaCall
1032   JavaCallArguments java_args(method->size_of_parameters());
1033 
1034   if (!is_static) {
1035     java_args.push_oop(receiver);
1036   }
1037 
1038   for (int i = 0; i < args_len; i++) {
1039     oop type_mirror = ptypes->obj_at(i);
1040     oop arg = args->obj_at(i);
1041     if (java_lang_Class::is_primitive(type_mirror)) {
1042       jvalue value;
1043       BasicType ptype = basic_type_mirror_to_basic_type(type_mirror, CHECK_NULL);
1044       BasicType atype = unbox_for_primitive(arg, &value, CHECK_NULL);
1045       if (ptype != atype) {
1046         widen(&value, atype, ptype, CHECK_NULL);
1047       }
1048       switch (ptype) {
1049         case T_BOOLEAN:     java_args.push_int(value.z);    break;
1050         case T_CHAR:        java_args.push_int(value.c);    break;
1051         case T_BYTE:        java_args.push_int(value.b);    break;
1052         case T_SHORT:       java_args.push_int(value.s);    break;
1053         case T_INT:         java_args.push_int(value.i);    break;
1054         case T_LONG:        java_args.push_long(value.j);   break;
1055         case T_FLOAT:       java_args.push_float(value.f);  break;
1056         case T_DOUBLE:      java_args.push_double(value.d); break;
1057         default:
1058           THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
1059       }
1060     } else {
1061       if (arg != NULL) {
1062         Klass* k = java_lang_Class::as_Klass(type_mirror);
1063         if (!arg->is_a(k)) {
1064           THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
1065         }
1066       }
1067       Handle arg_handle(THREAD, arg);         // Create handle for argument
1068       java_args.push_oop(arg_handle); // Push handle
1069     }
1070   }
1071 
1072   assert(java_args.size_of_parameters() == method->size_of_parameters(), "just checking");
1073 
1074   // All oops (including receiver) is passed in as Handles. An potential oop is returned as an
1075   // oop (i.e., NOT as an handle)
1076   JavaValue result(rtype);
1077   JavaCalls::call(&result, method, &java_args, THREAD);
1078 
1079   if (HAS_PENDING_EXCEPTION) {
1080     // Method threw an exception; wrap it in an InvocationTargetException
1081     oop target_exception = PENDING_EXCEPTION;
1082     CLEAR_PENDING_EXCEPTION;
1083     // JVMTI has already reported the pending exception
1084     // JVMTI internal flag reset is needed in order to report InvocationTargetException
1085     if (THREAD->is_Java_thread()) {
1086       JvmtiExport::clear_detected_exception((JavaThread*) THREAD);
1087     }
1088 
1089     JavaCallArguments args(Handle(THREAD, target_exception));
1090     THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(),
1091                 vmSymbols::throwable_void_signature(),
1092                 &args);
1093   } else {
1094     if (rtype == T_BOOLEAN || rtype == T_BYTE || rtype == T_CHAR || rtype == T_SHORT)
1095       narrow((jvalue*) result.get_value_addr(), rtype, CHECK_NULL);
1096     return box((jvalue*) result.get_value_addr(), rtype, CHECK_NULL);
1097   }
1098 }
1099 
1100 
1101 void Reflection::narrow(jvalue* value, BasicType narrow_type, TRAPS) {
1102   switch (narrow_type) {
1103     case T_BOOLEAN:
1104      value->z = (jboolean) (value->i & 1);
1105      return;
1106     case T_BYTE:
1107      value->b = (jbyte) value->i;
1108      return;
1109     case T_CHAR:
1110      value->c = (jchar) value->i;
1111      return;
1112     case T_SHORT:
1113      value->s = (jshort) value->i;
1114      return;
1115     default:
1116       break; // fail
1117    }
1118   THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
1119 }
1120 
1121 
1122 BasicType Reflection::basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS) {
1123   assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking");
1124   return java_lang_Class::primitive_type(basic_type_mirror);
1125 }
1126 
1127 // This would be nicer if, say, java.lang.reflect.Method was a subclass
1128 // of java.lang.reflect.Constructor
1129 
1130 oop Reflection::invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS) {
1131   oop mirror             = java_lang_reflect_Method::clazz(method_mirror);
1132   int slot               = java_lang_reflect_Method::slot(method_mirror);
1133   bool override          = java_lang_reflect_Method::override(method_mirror) != 0;
1134   objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Method::parameter_types(method_mirror)));
1135 
1136   oop return_type_mirror = java_lang_reflect_Method::return_type(method_mirror);
1137   BasicType rtype;
1138   if (java_lang_Class::is_primitive(return_type_mirror)) {
1139     rtype = basic_type_mirror_to_basic_type(return_type_mirror, CHECK_NULL);
1140   } else {
1141     rtype = T_OBJECT;
1142   }
1143 
1144   instanceKlassHandle klass(THREAD, java_lang_Class::as_Klass(mirror));
1145   Method* m = klass->method_with_idnum(slot);
1146   if (m == NULL) {
1147     THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
1148   }
1149   methodHandle method(THREAD, m);
1150 
1151   return invoke(klass, method, receiver, override, ptypes, rtype, args, true, THREAD);
1152 }
1153 
1154 
1155 oop Reflection::invoke_constructor(oop constructor_mirror, objArrayHandle args, TRAPS) {
1156   oop mirror             = java_lang_reflect_Constructor::clazz(constructor_mirror);
1157   int slot               = java_lang_reflect_Constructor::slot(constructor_mirror);
1158   bool override          = java_lang_reflect_Constructor::override(constructor_mirror) != 0;
1159   objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Constructor::parameter_types(constructor_mirror)));
1160 
1161   instanceKlassHandle klass(THREAD, java_lang_Class::as_Klass(mirror));
1162   Method* m = klass->method_with_idnum(slot);
1163   if (m == NULL) {
1164     THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
1165   }
1166   methodHandle method(THREAD, m);
1167   assert(method->name() == vmSymbols::object_initializer_name(), "invalid constructor");
1168 
1169   // Make sure klass gets initialize
1170   klass->initialize(CHECK_NULL);
1171 
1172   // Create new instance (the receiver)
1173   klass->check_valid_for_instantiation(false, CHECK_NULL);
1174   Handle receiver = klass->allocate_instance_handle(CHECK_NULL);
1175 
1176   // Ignore result from call and return receiver
1177   invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL);
1178   return receiver();
1179 }