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src/share/vm/runtime/reflection.cpp

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 691 
 692   // Allow all accesses from jdk/internal/reflect/MagicAccessorImpl subclasses to
 693   // succeed trivially.
 694   if (current_class->is_subclass_of(SystemDictionary::reflect_MagicAccessorImpl_klass())) {
 695     return true;
 696   }
 697 
 698   return can_relax_access_check_for(
 699     current_class, field_class, classloader_only);
 700 }
 701 
 702 bool Reflection::is_same_class_package(const Klass* class1, const Klass* class2) {
 703   return InstanceKlass::cast(class1)->is_same_class_package(class2);
 704 }
 705 
 706 // Checks that the 'outer' klass has declared 'inner' as being an inner klass. If not,
 707 // throw an incompatible class change exception
 708 // If inner_is_member, require the inner to be a member of the outer.
 709 // If !inner_is_member, require the inner to be anonymous (a non-member).
 710 // Caller is responsible for figuring out in advance which case must be true.
 711 void Reflection::check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner,
 712                                        bool inner_is_member, TRAPS) {
 713   InnerClassesIterator iter(outer);
 714   constantPoolHandle cp   (THREAD, outer->constants());
 715   for (; !iter.done(); iter.next()) {
 716      int ioff = iter.inner_class_info_index();
 717      int ooff = iter.outer_class_info_index();
 718 
 719      if (inner_is_member && ioff != 0 && ooff != 0) {
 720         Klass* o = cp->klass_at(ooff, CHECK);
 721         if (o == outer()) {
 722           Klass* i = cp->klass_at(ioff, CHECK);
 723           if (i == inner()) {
 724             return;
 725           }
 726         }
 727      }
 728      if (!inner_is_member && ioff != 0 && ooff == 0 &&
 729          cp->klass_name_at_matches(inner, ioff)) {
 730         Klass* i = cp->klass_at(ioff, CHECK);
 731         if (i == inner()) {
 732           return;
 733         }
 734      }
 735   }
 736 
 737   // 'inner' not declared as an inner klass in outer
 738   ResourceMark rm(THREAD);
 739   Exceptions::fthrow(
 740     THREAD_AND_LOCATION,
 741     vmSymbols::java_lang_IncompatibleClassChangeError(),
 742     "%s and %s disagree on InnerClasses attribute",
 743     outer->external_name(),
 744     inner->external_name()
 745   );
 746 }
 747 
 748 // Utility method converting a single SignatureStream element into java.lang.Class instance
 749 static oop get_mirror_from_signature(methodHandle method,
 750                                      SignatureStream* ss,
 751                                      TRAPS) {


 785   Symbol*  signature = method->signature();
 786   SignatureStream ss(signature);
 787   while (!ss.at_return_type()) {
 788     oop mirror = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle()));
 789     mirrors->obj_at_put(index++, mirror);
 790     ss.next();
 791   }
 792   assert(index == parameter_count, "invalid parameter count");
 793   if (return_type != NULL) {
 794     // Collect return type as well
 795     assert(ss.at_return_type(), "return type should be present");
 796     *return_type = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle()));
 797   }
 798   return mirrors;
 799 }
 800 
 801 static objArrayHandle get_exception_types(methodHandle method, TRAPS) {
 802   return method->resolved_checked_exceptions(THREAD);
 803 }
 804 
 805 static Handle new_type(Symbol* signature, KlassHandle k, TRAPS) {
 806   // Basic types
 807   BasicType type = vmSymbols::signature_type(signature);
 808   if (type != T_OBJECT) {
 809     return Handle(THREAD, Universe::java_mirror(type));
 810   }
 811 
 812   Klass* result =
 813     SystemDictionary::resolve_or_fail(signature,
 814                                       Handle(THREAD, k->class_loader()),
 815                                       Handle(THREAD, k->protection_domain()),
 816                                       true, CHECK_(Handle()));
 817 
 818   if (log_is_enabled(Debug, class, resolve)) {
 819     trace_class_resolution(result);
 820   }
 821 
 822   oop nt = result->java_mirror();
 823   return Handle(THREAD, nt);
 824 }
 825 
 826 
 827 oop Reflection::new_method(const methodHandle& method, bool for_constant_pool_access, TRAPS) {
 828   // Allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods.
 829   assert(!method()->is_initializer() ||
 830          (for_constant_pool_access && method()->is_static()),
 831          "should call new_constructor instead");
 832   instanceKlassHandle holder (THREAD, method->method_holder());
 833   int slot = method->method_idnum();
 834 
 835   Symbol*  signature  = method->signature();
 836   int parameter_count = ArgumentCount(signature).size();
 837   oop return_type_oop = NULL;
 838   objArrayHandle parameter_types = get_parameter_types(method, parameter_count, &return_type_oop, CHECK_NULL);
 839   if (parameter_types.is_null() || return_type_oop == NULL) return NULL;
 840 
 841   Handle return_type(THREAD, return_type_oop);
 842 
 843   objArrayHandle exception_types = get_exception_types(method, CHECK_NULL);
 844 
 845   if (exception_types.is_null()) return NULL;
 846 
 847   Symbol*  method_name = method->name();
 848   oop name_oop = StringTable::intern(method_name, CHECK_NULL);
 849   Handle name = Handle(THREAD, name_oop);
 850   if (name == NULL) return NULL;
 851 
 852   const int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;


 873   }
 874   if (java_lang_reflect_Method::has_parameter_annotations_field()) {
 875     typeArrayOop an_oop = Annotations::make_java_array(method->parameter_annotations(), CHECK_NULL);
 876     java_lang_reflect_Method::set_parameter_annotations(mh(), an_oop);
 877   }
 878   if (java_lang_reflect_Method::has_annotation_default_field()) {
 879     typeArrayOop an_oop = Annotations::make_java_array(method->annotation_default(), CHECK_NULL);
 880     java_lang_reflect_Method::set_annotation_default(mh(), an_oop);
 881   }
 882   if (java_lang_reflect_Method::has_type_annotations_field()) {
 883     typeArrayOop an_oop = Annotations::make_java_array(method->type_annotations(), CHECK_NULL);
 884     java_lang_reflect_Method::set_type_annotations(mh(), an_oop);
 885   }
 886   return mh();
 887 }
 888 
 889 
 890 oop Reflection::new_constructor(const methodHandle& method, TRAPS) {
 891   assert(method()->is_initializer(), "should call new_method instead");
 892 
 893   instanceKlassHandle  holder (THREAD, method->method_holder());
 894   int slot = method->method_idnum();
 895 
 896   Symbol*  signature  = method->signature();
 897   int parameter_count = ArgumentCount(signature).size();
 898   objArrayHandle parameter_types = get_parameter_types(method, parameter_count, NULL, CHECK_NULL);
 899   if (parameter_types.is_null()) return NULL;
 900 
 901   objArrayHandle exception_types = get_exception_types(method, CHECK_NULL);
 902   if (exception_types.is_null()) return NULL;
 903 
 904   const int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
 905 
 906   Handle ch = java_lang_reflect_Constructor::create(CHECK_NULL);
 907 
 908   java_lang_reflect_Constructor::set_clazz(ch(), holder->java_mirror());
 909   java_lang_reflect_Constructor::set_slot(ch(), slot);
 910   java_lang_reflect_Constructor::set_parameter_types(ch(), parameter_types());
 911   java_lang_reflect_Constructor::set_exception_types(ch(), exception_types());
 912   java_lang_reflect_Constructor::set_modifiers(ch(), modifiers);
 913   java_lang_reflect_Constructor::set_override(ch(), false);


 921     typeArrayOop an_oop = Annotations::make_java_array(method->annotations(), CHECK_NULL);
 922     java_lang_reflect_Constructor::set_annotations(ch(), an_oop);
 923   }
 924   if (java_lang_reflect_Constructor::has_parameter_annotations_field()) {
 925     typeArrayOop an_oop = Annotations::make_java_array(method->parameter_annotations(), CHECK_NULL);
 926     java_lang_reflect_Constructor::set_parameter_annotations(ch(), an_oop);
 927   }
 928   if (java_lang_reflect_Constructor::has_type_annotations_field()) {
 929     typeArrayOop an_oop = Annotations::make_java_array(method->type_annotations(), CHECK_NULL);
 930     java_lang_reflect_Constructor::set_type_annotations(ch(), an_oop);
 931   }
 932   return ch();
 933 }
 934 
 935 
 936 oop Reflection::new_field(fieldDescriptor* fd, TRAPS) {
 937   Symbol*  field_name = fd->name();
 938   oop name_oop = StringTable::intern(field_name, CHECK_NULL);
 939   Handle name = Handle(THREAD, name_oop);
 940   Symbol*  signature  = fd->signature();
 941   instanceKlassHandle  holder    (THREAD, fd->field_holder());
 942   Handle type = new_type(signature, holder, CHECK_NULL);
 943   Handle rh  = java_lang_reflect_Field::create(CHECK_NULL);
 944 
 945   java_lang_reflect_Field::set_clazz(rh(), fd->field_holder()->java_mirror());
 946   java_lang_reflect_Field::set_slot(rh(), fd->index());
 947   java_lang_reflect_Field::set_name(rh(), name());
 948   java_lang_reflect_Field::set_type(rh(), type());
 949   // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here.
 950   java_lang_reflect_Field::set_modifiers(rh(), fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS);
 951   java_lang_reflect_Field::set_override(rh(), false);
 952   if (java_lang_reflect_Field::has_signature_field() &&
 953       fd->has_generic_signature()) {
 954     Symbol*  gs = fd->generic_signature();
 955     Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
 956     java_lang_reflect_Field::set_signature(rh(), sig());
 957   }
 958   if (java_lang_reflect_Field::has_annotations_field()) {
 959     typeArrayOop an_oop = Annotations::make_java_array(fd->annotations(), CHECK_NULL);
 960     java_lang_reflect_Field::set_annotations(rh(), an_oop);
 961   }


 968 
 969 oop Reflection::new_parameter(Handle method, int index, Symbol* sym,
 970                               int flags, TRAPS) {
 971 
 972   Handle rh = java_lang_reflect_Parameter::create(CHECK_NULL);
 973 
 974   if(NULL != sym) {
 975     Handle name = java_lang_String::create_from_symbol(sym, CHECK_NULL);
 976     java_lang_reflect_Parameter::set_name(rh(), name());
 977   } else {
 978     java_lang_reflect_Parameter::set_name(rh(), NULL);
 979   }
 980 
 981   java_lang_reflect_Parameter::set_modifiers(rh(), flags);
 982   java_lang_reflect_Parameter::set_executable(rh(), method());
 983   java_lang_reflect_Parameter::set_index(rh(), index);
 984   return rh();
 985 }
 986 
 987 
 988 static methodHandle resolve_interface_call(instanceKlassHandle klass,
 989                                            const methodHandle& method,
 990                                            KlassHandle recv_klass,
 991                                            Handle receiver,
 992                                            TRAPS) {
 993 
 994   assert(!method.is_null() , "method should not be null");
 995 
 996   CallInfo info;
 997   Symbol*  signature  = method->signature();
 998   Symbol*  name       = method->name();
 999   LinkResolver::resolve_interface_call(info, receiver, recv_klass,
1000                                        LinkInfo(klass, name, signature),
1001                                        true,
1002                                        CHECK_(methodHandle()));
1003   return info.selected_method();
1004 }
1005 
1006 // Conversion
1007 static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS) {
1008   assert(java_lang_Class::is_primitive(basic_type_mirror),
1009     "just checking");
1010   return java_lang_Class::primitive_type(basic_type_mirror);


1018   case T_BOOLEAN:
1019     value->z = (jboolean) (value->i & 1);
1020     return;
1021   case T_BYTE:
1022     value->b = (jbyte)value->i;
1023     return;
1024   case T_CHAR:
1025     value->c = (jchar)value->i;
1026     return;
1027   case T_SHORT:
1028     value->s = (jshort)value->i;
1029     return;
1030   default:
1031     break; // fail
1032   }
1033   THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
1034 }
1035 
1036 
1037 // Method call (shared by invoke_method and invoke_constructor)
1038 static oop invoke(instanceKlassHandle klass,
1039                   methodHandle reflected_method,
1040                   Handle receiver,
1041                   bool override,
1042                   objArrayHandle ptypes,
1043                   BasicType rtype,
1044                   objArrayHandle args,
1045                   bool is_method_invoke,
1046                   TRAPS) {
1047 
1048   ResourceMark rm(THREAD);
1049 
1050   methodHandle method;      // actual method to invoke
1051   KlassHandle target_klass; // target klass, receiver's klass for non-static
1052 
1053   // Ensure klass is initialized
1054   klass->initialize(CHECK_NULL);
1055 
1056   bool is_static = reflected_method->is_static();
1057   if (is_static) {
1058     // ignore receiver argument
1059     method = reflected_method;
1060     target_klass = klass;
1061   } else {
1062     // check for null receiver
1063     if (receiver.is_null()) {
1064       THROW_0(vmSymbols::java_lang_NullPointerException());
1065     }
1066     // Check class of receiver against class declaring method
1067     if (!receiver->is_a(klass())) {
1068       THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class");
1069     }
1070     // target klass is receiver's klass
1071     target_klass = KlassHandle(THREAD, receiver->klass());
1072     // no need to resolve if method is private or <init>
1073     if (reflected_method->is_private() || reflected_method->name() == vmSymbols::object_initializer_name()) {
1074       method = reflected_method;
1075     } else {
1076       // resolve based on the receiver
1077       if (reflected_method->method_holder()->is_interface()) {
1078         // resolve interface call
1079         //
1080         // Match resolution errors with those thrown due to reflection inlining
1081         // Linktime resolution & IllegalAccessCheck already done by Class.getMethod()
1082         method = resolve_interface_call(klass, reflected_method, target_klass, receiver, THREAD);
1083         if (HAS_PENDING_EXCEPTION) {
1084           // Method resolution threw an exception; wrap it in an InvocationTargetException
1085           oop resolution_exception = PENDING_EXCEPTION;
1086           CLEAR_PENDING_EXCEPTION;
1087           // JVMTI has already reported the pending exception
1088           // JVMTI internal flag reset is needed in order to report InvocationTargetException
1089           if (THREAD->is_Java_thread()) {
1090             JvmtiExport::clear_detected_exception((JavaThread*)THREAD);
1091           }
1092           JavaCallArguments args(Handle(THREAD, resolution_exception));
1093           THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(),
1094                       vmSymbols::throwable_void_signature(),
1095                       &args);
1096         }
1097       }  else {
1098         // if the method can be overridden, we resolve using the vtable index.
1099         assert(!reflected_method->has_itable_index(), "");
1100         int index = reflected_method->vtable_index();
1101         method = reflected_method;
1102         if (index != Method::nonvirtual_vtable_index) {
1103           method = methodHandle(THREAD, target_klass->method_at_vtable(index));
1104         }
1105         if (!method.is_null()) {
1106           // Check for abstract methods as well
1107           if (method->is_abstract()) {
1108             // new default: 6531596
1109             ResourceMark rm(THREAD);
1110             Handle h_origexception = Exceptions::new_exception(THREAD,
1111               vmSymbols::java_lang_AbstractMethodError(),
1112               Method::name_and_sig_as_C_string(target_klass(),
1113               method->name(),
1114               method->signature()));
1115             JavaCallArguments args(h_origexception);
1116             THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(),
1117               vmSymbols::throwable_void_signature(),
1118               &args);
1119           }
1120         }
1121       }
1122     }
1123   }
1124 
1125   // I believe this is a ShouldNotGetHere case which requires
1126   // an internal vtable bug. If you ever get this please let Karen know.
1127   if (method.is_null()) {
1128     ResourceMark rm(THREAD);
1129     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(),
1130                 Method::name_and_sig_as_C_string(klass(),
1131                 reflected_method->name(),
1132                 reflected_method->signature()));
1133   }
1134 
1135   assert(ptypes->is_objArray(), "just checking");
1136   int args_len = args.is_null() ? 0 : args->length();
1137   // Check number of arguments
1138   if (ptypes->length() != args_len) {
1139     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
1140                 "wrong number of arguments");
1141   }
1142 
1143   // Create object to contain parameters for the JavaCall
1144   JavaCallArguments java_args(method->size_of_parameters());
1145 
1146   if (!is_static) {
1147     java_args.push_oop(receiver);
1148   }
1149 
1150   for (int i = 0; i < args_len; i++) {


1212   }
1213 }
1214 
1215 // This would be nicer if, say, java.lang.reflect.Method was a subclass
1216 // of java.lang.reflect.Constructor
1217 
1218 oop Reflection::invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS) {
1219   oop mirror             = java_lang_reflect_Method::clazz(method_mirror);
1220   int slot               = java_lang_reflect_Method::slot(method_mirror);
1221   bool override          = java_lang_reflect_Method::override(method_mirror) != 0;
1222   objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Method::parameter_types(method_mirror)));
1223 
1224   oop return_type_mirror = java_lang_reflect_Method::return_type(method_mirror);
1225   BasicType rtype;
1226   if (java_lang_Class::is_primitive(return_type_mirror)) {
1227     rtype = basic_type_mirror_to_basic_type(return_type_mirror, CHECK_NULL);
1228   } else {
1229     rtype = T_OBJECT;
1230   }
1231 
1232   instanceKlassHandle klass(THREAD, java_lang_Class::as_Klass(mirror));
1233   Method* m = klass->method_with_idnum(slot);
1234   if (m == NULL) {
1235     THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
1236   }
1237   methodHandle method(THREAD, m);
1238 
1239   return invoke(klass, method, receiver, override, ptypes, rtype, args, true, THREAD);
1240 }
1241 
1242 
1243 oop Reflection::invoke_constructor(oop constructor_mirror, objArrayHandle args, TRAPS) {
1244   oop mirror             = java_lang_reflect_Constructor::clazz(constructor_mirror);
1245   int slot               = java_lang_reflect_Constructor::slot(constructor_mirror);
1246   bool override          = java_lang_reflect_Constructor::override(constructor_mirror) != 0;
1247   objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Constructor::parameter_types(constructor_mirror)));
1248 
1249   instanceKlassHandle klass(THREAD, java_lang_Class::as_Klass(mirror));
1250   Method* m = klass->method_with_idnum(slot);
1251   if (m == NULL) {
1252     THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
1253   }
1254   methodHandle method(THREAD, m);
1255   assert(method->name() == vmSymbols::object_initializer_name(), "invalid constructor");
1256 
1257   // Make sure klass gets initialize
1258   klass->initialize(CHECK_NULL);
1259 
1260   // Create new instance (the receiver)
1261   klass->check_valid_for_instantiation(false, CHECK_NULL);
1262   Handle receiver = klass->allocate_instance_handle(CHECK_NULL);
1263 
1264   // Ignore result from call and return receiver
1265   invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL);
1266   return receiver();
1267 }


 691 
 692   // Allow all accesses from jdk/internal/reflect/MagicAccessorImpl subclasses to
 693   // succeed trivially.
 694   if (current_class->is_subclass_of(SystemDictionary::reflect_MagicAccessorImpl_klass())) {
 695     return true;
 696   }
 697 
 698   return can_relax_access_check_for(
 699     current_class, field_class, classloader_only);
 700 }
 701 
 702 bool Reflection::is_same_class_package(const Klass* class1, const Klass* class2) {
 703   return InstanceKlass::cast(class1)->is_same_class_package(class2);
 704 }
 705 
 706 // Checks that the 'outer' klass has declared 'inner' as being an inner klass. If not,
 707 // throw an incompatible class change exception
 708 // If inner_is_member, require the inner to be a member of the outer.
 709 // If !inner_is_member, require the inner to be anonymous (a non-member).
 710 // Caller is responsible for figuring out in advance which case must be true.
 711 void Reflection::check_for_inner_class(const InstanceKlass* outer, const InstanceKlass* inner,
 712                                        bool inner_is_member, TRAPS) {
 713   InnerClassesIterator iter(outer);
 714   constantPoolHandle cp   (THREAD, outer->constants());
 715   for (; !iter.done(); iter.next()) {
 716      int ioff = iter.inner_class_info_index();
 717      int ooff = iter.outer_class_info_index();
 718 
 719      if (inner_is_member && ioff != 0 && ooff != 0) {
 720         Klass* o = cp->klass_at(ooff, CHECK);
 721         if (o == outer) {
 722           Klass* i = cp->klass_at(ioff, CHECK);
 723           if (i == inner) {
 724             return;
 725           }
 726         }
 727      }
 728      if (!inner_is_member && ioff != 0 && ooff == 0 &&
 729          cp->klass_name_at_matches(inner, ioff)) {
 730         Klass* i = cp->klass_at(ioff, CHECK);
 731         if (i == inner) {
 732           return;
 733         }
 734      }
 735   }
 736 
 737   // 'inner' not declared as an inner klass in outer
 738   ResourceMark rm(THREAD);
 739   Exceptions::fthrow(
 740     THREAD_AND_LOCATION,
 741     vmSymbols::java_lang_IncompatibleClassChangeError(),
 742     "%s and %s disagree on InnerClasses attribute",
 743     outer->external_name(),
 744     inner->external_name()
 745   );
 746 }
 747 
 748 // Utility method converting a single SignatureStream element into java.lang.Class instance
 749 static oop get_mirror_from_signature(methodHandle method,
 750                                      SignatureStream* ss,
 751                                      TRAPS) {


 785   Symbol*  signature = method->signature();
 786   SignatureStream ss(signature);
 787   while (!ss.at_return_type()) {
 788     oop mirror = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle()));
 789     mirrors->obj_at_put(index++, mirror);
 790     ss.next();
 791   }
 792   assert(index == parameter_count, "invalid parameter count");
 793   if (return_type != NULL) {
 794     // Collect return type as well
 795     assert(ss.at_return_type(), "return type should be present");
 796     *return_type = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle()));
 797   }
 798   return mirrors;
 799 }
 800 
 801 static objArrayHandle get_exception_types(methodHandle method, TRAPS) {
 802   return method->resolved_checked_exceptions(THREAD);
 803 }
 804 
 805 static Handle new_type(Symbol* signature, Klass* k, TRAPS) {
 806   // Basic types
 807   BasicType type = vmSymbols::signature_type(signature);
 808   if (type != T_OBJECT) {
 809     return Handle(THREAD, Universe::java_mirror(type));
 810   }
 811 
 812   Klass* result =
 813     SystemDictionary::resolve_or_fail(signature,
 814                                       Handle(THREAD, k->class_loader()),
 815                                       Handle(THREAD, k->protection_domain()),
 816                                       true, CHECK_(Handle()));
 817 
 818   if (log_is_enabled(Debug, class, resolve)) {
 819     trace_class_resolution(result);
 820   }
 821 
 822   oop nt = result->java_mirror();
 823   return Handle(THREAD, nt);
 824 }
 825 
 826 
 827 oop Reflection::new_method(const methodHandle& method, bool for_constant_pool_access, TRAPS) {
 828   // Allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods.
 829   assert(!method()->is_initializer() ||
 830          (for_constant_pool_access && method()->is_static()),
 831          "should call new_constructor instead");
 832   InstanceKlass* holder = method->method_holder();
 833   int slot = method->method_idnum();
 834 
 835   Symbol*  signature  = method->signature();
 836   int parameter_count = ArgumentCount(signature).size();
 837   oop return_type_oop = NULL;
 838   objArrayHandle parameter_types = get_parameter_types(method, parameter_count, &return_type_oop, CHECK_NULL);
 839   if (parameter_types.is_null() || return_type_oop == NULL) return NULL;
 840 
 841   Handle return_type(THREAD, return_type_oop);
 842 
 843   objArrayHandle exception_types = get_exception_types(method, CHECK_NULL);
 844 
 845   if (exception_types.is_null()) return NULL;
 846 
 847   Symbol*  method_name = method->name();
 848   oop name_oop = StringTable::intern(method_name, CHECK_NULL);
 849   Handle name = Handle(THREAD, name_oop);
 850   if (name == NULL) return NULL;
 851 
 852   const int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;


 873   }
 874   if (java_lang_reflect_Method::has_parameter_annotations_field()) {
 875     typeArrayOop an_oop = Annotations::make_java_array(method->parameter_annotations(), CHECK_NULL);
 876     java_lang_reflect_Method::set_parameter_annotations(mh(), an_oop);
 877   }
 878   if (java_lang_reflect_Method::has_annotation_default_field()) {
 879     typeArrayOop an_oop = Annotations::make_java_array(method->annotation_default(), CHECK_NULL);
 880     java_lang_reflect_Method::set_annotation_default(mh(), an_oop);
 881   }
 882   if (java_lang_reflect_Method::has_type_annotations_field()) {
 883     typeArrayOop an_oop = Annotations::make_java_array(method->type_annotations(), CHECK_NULL);
 884     java_lang_reflect_Method::set_type_annotations(mh(), an_oop);
 885   }
 886   return mh();
 887 }
 888 
 889 
 890 oop Reflection::new_constructor(const methodHandle& method, TRAPS) {
 891   assert(method()->is_initializer(), "should call new_method instead");
 892 
 893   InstanceKlass* holder = method->method_holder();
 894   int slot = method->method_idnum();
 895 
 896   Symbol*  signature  = method->signature();
 897   int parameter_count = ArgumentCount(signature).size();
 898   objArrayHandle parameter_types = get_parameter_types(method, parameter_count, NULL, CHECK_NULL);
 899   if (parameter_types.is_null()) return NULL;
 900 
 901   objArrayHandle exception_types = get_exception_types(method, CHECK_NULL);
 902   if (exception_types.is_null()) return NULL;
 903 
 904   const int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
 905 
 906   Handle ch = java_lang_reflect_Constructor::create(CHECK_NULL);
 907 
 908   java_lang_reflect_Constructor::set_clazz(ch(), holder->java_mirror());
 909   java_lang_reflect_Constructor::set_slot(ch(), slot);
 910   java_lang_reflect_Constructor::set_parameter_types(ch(), parameter_types());
 911   java_lang_reflect_Constructor::set_exception_types(ch(), exception_types());
 912   java_lang_reflect_Constructor::set_modifiers(ch(), modifiers);
 913   java_lang_reflect_Constructor::set_override(ch(), false);


 921     typeArrayOop an_oop = Annotations::make_java_array(method->annotations(), CHECK_NULL);
 922     java_lang_reflect_Constructor::set_annotations(ch(), an_oop);
 923   }
 924   if (java_lang_reflect_Constructor::has_parameter_annotations_field()) {
 925     typeArrayOop an_oop = Annotations::make_java_array(method->parameter_annotations(), CHECK_NULL);
 926     java_lang_reflect_Constructor::set_parameter_annotations(ch(), an_oop);
 927   }
 928   if (java_lang_reflect_Constructor::has_type_annotations_field()) {
 929     typeArrayOop an_oop = Annotations::make_java_array(method->type_annotations(), CHECK_NULL);
 930     java_lang_reflect_Constructor::set_type_annotations(ch(), an_oop);
 931   }
 932   return ch();
 933 }
 934 
 935 
 936 oop Reflection::new_field(fieldDescriptor* fd, TRAPS) {
 937   Symbol*  field_name = fd->name();
 938   oop name_oop = StringTable::intern(field_name, CHECK_NULL);
 939   Handle name = Handle(THREAD, name_oop);
 940   Symbol*  signature  = fd->signature();
 941   InstanceKlass* holder = fd->field_holder();
 942   Handle type = new_type(signature, holder, CHECK_NULL);
 943   Handle rh  = java_lang_reflect_Field::create(CHECK_NULL);
 944 
 945   java_lang_reflect_Field::set_clazz(rh(), fd->field_holder()->java_mirror());
 946   java_lang_reflect_Field::set_slot(rh(), fd->index());
 947   java_lang_reflect_Field::set_name(rh(), name());
 948   java_lang_reflect_Field::set_type(rh(), type());
 949   // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here.
 950   java_lang_reflect_Field::set_modifiers(rh(), fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS);
 951   java_lang_reflect_Field::set_override(rh(), false);
 952   if (java_lang_reflect_Field::has_signature_field() &&
 953       fd->has_generic_signature()) {
 954     Symbol*  gs = fd->generic_signature();
 955     Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
 956     java_lang_reflect_Field::set_signature(rh(), sig());
 957   }
 958   if (java_lang_reflect_Field::has_annotations_field()) {
 959     typeArrayOop an_oop = Annotations::make_java_array(fd->annotations(), CHECK_NULL);
 960     java_lang_reflect_Field::set_annotations(rh(), an_oop);
 961   }


 968 
 969 oop Reflection::new_parameter(Handle method, int index, Symbol* sym,
 970                               int flags, TRAPS) {
 971 
 972   Handle rh = java_lang_reflect_Parameter::create(CHECK_NULL);
 973 
 974   if(NULL != sym) {
 975     Handle name = java_lang_String::create_from_symbol(sym, CHECK_NULL);
 976     java_lang_reflect_Parameter::set_name(rh(), name());
 977   } else {
 978     java_lang_reflect_Parameter::set_name(rh(), NULL);
 979   }
 980 
 981   java_lang_reflect_Parameter::set_modifiers(rh(), flags);
 982   java_lang_reflect_Parameter::set_executable(rh(), method());
 983   java_lang_reflect_Parameter::set_index(rh(), index);
 984   return rh();
 985 }
 986 
 987 
 988 static methodHandle resolve_interface_call(InstanceKlass* klass,
 989                                            const methodHandle& method,
 990                                            Klass* recv_klass,
 991                                            Handle receiver,
 992                                            TRAPS) {
 993 
 994   assert(!method.is_null() , "method should not be null");
 995 
 996   CallInfo info;
 997   Symbol*  signature  = method->signature();
 998   Symbol*  name       = method->name();
 999   LinkResolver::resolve_interface_call(info, receiver, recv_klass,
1000                                        LinkInfo(klass, name, signature),
1001                                        true,
1002                                        CHECK_(methodHandle()));
1003   return info.selected_method();
1004 }
1005 
1006 // Conversion
1007 static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS) {
1008   assert(java_lang_Class::is_primitive(basic_type_mirror),
1009     "just checking");
1010   return java_lang_Class::primitive_type(basic_type_mirror);


1018   case T_BOOLEAN:
1019     value->z = (jboolean) (value->i & 1);
1020     return;
1021   case T_BYTE:
1022     value->b = (jbyte)value->i;
1023     return;
1024   case T_CHAR:
1025     value->c = (jchar)value->i;
1026     return;
1027   case T_SHORT:
1028     value->s = (jshort)value->i;
1029     return;
1030   default:
1031     break; // fail
1032   }
1033   THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
1034 }
1035 
1036 
1037 // Method call (shared by invoke_method and invoke_constructor)
1038 static oop invoke(InstanceKlass* klass,
1039                   methodHandle reflected_method,
1040                   Handle receiver,
1041                   bool override,
1042                   objArrayHandle ptypes,
1043                   BasicType rtype,
1044                   objArrayHandle args,
1045                   bool is_method_invoke,
1046                   TRAPS) {
1047 
1048   ResourceMark rm(THREAD);
1049 
1050   methodHandle method;      // actual method to invoke
1051   Klass* target_klass;      // target klass, receiver's klass for non-static
1052 
1053   // Ensure klass is initialized
1054   klass->initialize(CHECK_NULL);
1055 
1056   bool is_static = reflected_method->is_static();
1057   if (is_static) {
1058     // ignore receiver argument
1059     method = reflected_method;
1060     target_klass = klass;
1061   } else {
1062     // check for null receiver
1063     if (receiver.is_null()) {
1064       THROW_0(vmSymbols::java_lang_NullPointerException());
1065     }
1066     // Check class of receiver against class declaring method
1067     if (!receiver->is_a(klass)) {
1068       THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class");
1069     }
1070     // target klass is receiver's klass
1071     target_klass = receiver->klass();
1072     // no need to resolve if method is private or <init>
1073     if (reflected_method->is_private() || reflected_method->name() == vmSymbols::object_initializer_name()) {
1074       method = reflected_method;
1075     } else {
1076       // resolve based on the receiver
1077       if (reflected_method->method_holder()->is_interface()) {
1078         // resolve interface call
1079         //
1080         // Match resolution errors with those thrown due to reflection inlining
1081         // Linktime resolution & IllegalAccessCheck already done by Class.getMethod()
1082         method = resolve_interface_call(klass, reflected_method, target_klass, receiver, THREAD);
1083         if (HAS_PENDING_EXCEPTION) {
1084           // Method resolution threw an exception; wrap it in an InvocationTargetException
1085           oop resolution_exception = PENDING_EXCEPTION;
1086           CLEAR_PENDING_EXCEPTION;
1087           // JVMTI has already reported the pending exception
1088           // JVMTI internal flag reset is needed in order to report InvocationTargetException
1089           if (THREAD->is_Java_thread()) {
1090             JvmtiExport::clear_detected_exception((JavaThread*)THREAD);
1091           }
1092           JavaCallArguments args(Handle(THREAD, resolution_exception));
1093           THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(),
1094                       vmSymbols::throwable_void_signature(),
1095                       &args);
1096         }
1097       }  else {
1098         // if the method can be overridden, we resolve using the vtable index.
1099         assert(!reflected_method->has_itable_index(), "");
1100         int index = reflected_method->vtable_index();
1101         method = reflected_method;
1102         if (index != Method::nonvirtual_vtable_index) {
1103           method = methodHandle(THREAD, target_klass->method_at_vtable(index));
1104         }
1105         if (!method.is_null()) {
1106           // Check for abstract methods as well
1107           if (method->is_abstract()) {
1108             // new default: 6531596
1109             ResourceMark rm(THREAD);
1110             Handle h_origexception = Exceptions::new_exception(THREAD,
1111               vmSymbols::java_lang_AbstractMethodError(),
1112               Method::name_and_sig_as_C_string(target_klass,
1113               method->name(),
1114               method->signature()));
1115             JavaCallArguments args(h_origexception);
1116             THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(),
1117               vmSymbols::throwable_void_signature(),
1118               &args);
1119           }
1120         }
1121       }
1122     }
1123   }
1124 
1125   // I believe this is a ShouldNotGetHere case which requires
1126   // an internal vtable bug. If you ever get this please let Karen know.
1127   if (method.is_null()) {
1128     ResourceMark rm(THREAD);
1129     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(),
1130                 Method::name_and_sig_as_C_string(klass,
1131                 reflected_method->name(),
1132                 reflected_method->signature()));
1133   }
1134 
1135   assert(ptypes->is_objArray(), "just checking");
1136   int args_len = args.is_null() ? 0 : args->length();
1137   // Check number of arguments
1138   if (ptypes->length() != args_len) {
1139     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
1140                 "wrong number of arguments");
1141   }
1142 
1143   // Create object to contain parameters for the JavaCall
1144   JavaCallArguments java_args(method->size_of_parameters());
1145 
1146   if (!is_static) {
1147     java_args.push_oop(receiver);
1148   }
1149 
1150   for (int i = 0; i < args_len; i++) {


1212   }
1213 }
1214 
1215 // This would be nicer if, say, java.lang.reflect.Method was a subclass
1216 // of java.lang.reflect.Constructor
1217 
1218 oop Reflection::invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS) {
1219   oop mirror             = java_lang_reflect_Method::clazz(method_mirror);
1220   int slot               = java_lang_reflect_Method::slot(method_mirror);
1221   bool override          = java_lang_reflect_Method::override(method_mirror) != 0;
1222   objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Method::parameter_types(method_mirror)));
1223 
1224   oop return_type_mirror = java_lang_reflect_Method::return_type(method_mirror);
1225   BasicType rtype;
1226   if (java_lang_Class::is_primitive(return_type_mirror)) {
1227     rtype = basic_type_mirror_to_basic_type(return_type_mirror, CHECK_NULL);
1228   } else {
1229     rtype = T_OBJECT;
1230   }
1231 
1232   InstanceKlass* klass = InstanceKlass::cast(java_lang_Class::as_Klass(mirror));
1233   Method* m = klass->method_with_idnum(slot);
1234   if (m == NULL) {
1235     THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
1236   }
1237   methodHandle method(THREAD, m);
1238 
1239   return invoke(klass, method, receiver, override, ptypes, rtype, args, true, THREAD);
1240 }
1241 
1242 
1243 oop Reflection::invoke_constructor(oop constructor_mirror, objArrayHandle args, TRAPS) {
1244   oop mirror             = java_lang_reflect_Constructor::clazz(constructor_mirror);
1245   int slot               = java_lang_reflect_Constructor::slot(constructor_mirror);
1246   bool override          = java_lang_reflect_Constructor::override(constructor_mirror) != 0;
1247   objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Constructor::parameter_types(constructor_mirror)));
1248 
1249   InstanceKlass* klass = InstanceKlass::cast(java_lang_Class::as_Klass(mirror));
1250   Method* m = klass->method_with_idnum(slot);
1251   if (m == NULL) {
1252     THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
1253   }
1254   methodHandle method(THREAD, m);
1255   assert(method->name() == vmSymbols::object_initializer_name(), "invalid constructor");
1256 
1257   // Make sure klass gets initialize
1258   klass->initialize(CHECK_NULL);
1259 
1260   // Create new instance (the receiver)
1261   klass->check_valid_for_instantiation(false, CHECK_NULL);
1262   Handle receiver = klass->allocate_instance_handle(CHECK_NULL);
1263 
1264   // Ignore result from call and return receiver
1265   invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL);
1266   return receiver();
1267 }
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