duke@435: /*
trims@1907:  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #include "precompiled.hpp"
stefank@2314: #include "classfile/javaClasses.hpp"
stefank@2314: #include "classfile/symbolTable.hpp"
stefank@2314: #include "classfile/systemDictionary.hpp"
stefank@2314: #include "classfile/verifier.hpp"
stefank@2314: #include "classfile/vmSymbols.hpp"
stefank@2314: #include "interpreter/linkResolver.hpp"
stefank@2314: #include "memory/oopFactory.hpp"
stefank@2314: #include "memory/resourceArea.hpp"
stefank@2314: #include "memory/universe.inline.hpp"
stefank@2314: #include "oops/instanceKlass.hpp"
stefank@2314: #include "oops/objArrayKlass.hpp"
stefank@2314: #include "oops/objArrayOop.hpp"
stefank@2314: #include "prims/jvm.h"
stefank@2314: #include "prims/methodHandleWalk.hpp"
stefank@2314: #include "runtime/arguments.hpp"
stefank@2314: #include "runtime/handles.inline.hpp"
stefank@2314: #include "runtime/javaCalls.hpp"
stefank@2314: #include "runtime/reflection.hpp"
stefank@2314: #include "runtime/reflectionUtils.hpp"
stefank@2314: #include "runtime/signature.hpp"
stefank@2314: #include "runtime/vframe.hpp"
duke@435: 
duke@435: #define JAVA_1_5_VERSION                  49
duke@435: 
duke@435: static void trace_class_resolution(klassOop to_class) {
duke@435:   ResourceMark rm;
duke@435:   int line_number = -1;
duke@435:   const char * source_file = NULL;
duke@435:   klassOop caller = NULL;
duke@435:   JavaThread* jthread = JavaThread::current();
duke@435:   if (jthread->has_last_Java_frame()) {
duke@435:     vframeStream vfst(jthread);
duke@435:     // skip over any frames belonging to java.lang.Class
duke@435:     while (!vfst.at_end() &&
duke@435:            instanceKlass::cast(vfst.method()->method_holder())->name() == vmSymbols::java_lang_Class()) {
duke@435:       vfst.next();
duke@435:     }
duke@435:     if (!vfst.at_end()) {
duke@435:       // this frame is a likely suspect
duke@435:       caller = vfst.method()->method_holder();
duke@435:       line_number = vfst.method()->line_number_from_bci(vfst.bci());
coleenp@2497:       Symbol* s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name();
duke@435:       if (s != NULL) {
duke@435:         source_file = s->as_C_string();
duke@435:       }
duke@435:     }
duke@435:   }
duke@435:   if (caller != NULL) {
duke@435:     const char * from = Klass::cast(caller)->external_name();
duke@435:     const char * to = Klass::cast(to_class)->external_name();
duke@435:     // print in a single call to reduce interleaving between threads
duke@435:     if (source_file != NULL) {
duke@435:       tty->print("RESOLVE %s %s %s:%d (reflection)\n", from, to, source_file, line_number);
duke@435:     } else {
duke@435:       tty->print("RESOLVE %s %s (reflection)\n", from, to);
duke@435:     }
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
duke@435: oop Reflection::box(jvalue* value, BasicType type, TRAPS) {
duke@435:   if (type == T_VOID) {
duke@435:     return NULL;
duke@435:   }
duke@435:   if (type == T_OBJECT || type == T_ARRAY) {
duke@435:     // regular objects are not boxed
duke@435:     return (oop) value->l;
duke@435:   }
duke@435:   oop result = java_lang_boxing_object::create(type, value, CHECK_NULL);
duke@435:   if (result == NULL) {
duke@435:     THROW_(vmSymbols::java_lang_IllegalArgumentException(), result);
duke@435:   }
duke@435:   return result;
duke@435: }
duke@435: 
duke@435: 
duke@435: BasicType Reflection::unbox_for_primitive(oop box, jvalue* value, TRAPS) {
duke@435:   if (box == NULL) {
duke@435:     THROW_(vmSymbols::java_lang_IllegalArgumentException(), T_ILLEGAL);
duke@435:   }
duke@435:   return java_lang_boxing_object::get_value(box, value);
duke@435: }
duke@435: 
duke@435: BasicType Reflection::unbox_for_regular_object(oop box, jvalue* value) {
duke@435:   // Note:  box is really the unboxed oop.  It might even be a Short, etc.!
duke@435:   value->l = (jobject) box;
duke@435:   return T_OBJECT;
duke@435: }
duke@435: 
duke@435: 
duke@435: void Reflection::widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS) {
duke@435:   assert(wide_type != current_type, "widen should not be called with identical types");
duke@435:   switch (wide_type) {
duke@435:     case T_BOOLEAN:
duke@435:     case T_BYTE:
duke@435:     case T_CHAR:
duke@435:       break;  // fail
duke@435:     case T_SHORT:
duke@435:       switch (current_type) {
duke@435:         case T_BYTE:
duke@435:           value->s = (jshort) value->b;
duke@435:           return;
duke@435:       }
duke@435:       break;  // fail
duke@435:     case T_INT:
duke@435:       switch (current_type) {
duke@435:         case T_BYTE:
duke@435:           value->i = (jint) value->b;
duke@435:           return;
duke@435:         case T_CHAR:
duke@435:           value->i = (jint) value->c;
duke@435:           return;
duke@435:         case T_SHORT:
duke@435:           value->i = (jint) value->s;
duke@435:           return;
duke@435:       }
duke@435:       break;  // fail
duke@435:     case T_LONG:
duke@435:       switch (current_type) {
duke@435:         case T_BYTE:
duke@435:           value->j = (jlong) value->b;
duke@435:           return;
duke@435:         case T_CHAR:
duke@435:           value->j = (jlong) value->c;
duke@435:           return;
duke@435:         case T_SHORT:
duke@435:           value->j = (jlong) value->s;
duke@435:           return;
duke@435:         case T_INT:
duke@435:           value->j = (jlong) value->i;
duke@435:           return;
duke@435:       }
duke@435:       break;  // fail
duke@435:     case T_FLOAT:
duke@435:       switch (current_type) {
duke@435:         case T_BYTE:
duke@435:           value->f = (jfloat) value->b;
duke@435:           return;
duke@435:         case T_CHAR:
duke@435:           value->f = (jfloat) value->c;
duke@435:           return;
duke@435:         case T_SHORT:
duke@435:           value->f = (jfloat) value->s;
duke@435:           return;
duke@435:         case T_INT:
duke@435:           value->f = (jfloat) value->i;
duke@435:           return;
duke@435:         case T_LONG:
duke@435:           value->f = (jfloat) value->j;
duke@435:           return;
duke@435:       }
duke@435:       break;  // fail
duke@435:     case T_DOUBLE:
duke@435:       switch (current_type) {
duke@435:         case T_BYTE:
duke@435:           value->d = (jdouble) value->b;
duke@435:           return;
duke@435:         case T_CHAR:
duke@435:           value->d = (jdouble) value->c;
duke@435:           return;
duke@435:         case T_SHORT:
duke@435:           value->d = (jdouble) value->s;
duke@435:           return;
duke@435:         case T_INT:
duke@435:           value->d = (jdouble) value->i;
duke@435:           return;
duke@435:         case T_FLOAT:
duke@435:           value->d = (jdouble) value->f;
duke@435:           return;
duke@435:         case T_LONG:
duke@435:           value->d = (jdouble) value->j;
duke@435:           return;
duke@435:       }
duke@435:       break;  // fail
duke@435:     default:
duke@435:       break;  // fail
duke@435:   }
duke@435:   THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
duke@435: }
duke@435: 
duke@435: 
duke@435: BasicType Reflection::array_get(jvalue* value, arrayOop a, int index, TRAPS) {
duke@435:   if (!a->is_within_bounds(index)) {
duke@435:     THROW_(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), T_ILLEGAL);
duke@435:   }
duke@435:   if (a->is_objArray()) {
duke@435:     value->l = (jobject) objArrayOop(a)->obj_at(index);
duke@435:     return T_OBJECT;
duke@435:   } else {
duke@435:     assert(a->is_typeArray(), "just checking");
duke@435:     BasicType type = typeArrayKlass::cast(a->klass())->element_type();
duke@435:     switch (type) {
duke@435:       case T_BOOLEAN:
duke@435:         value->z = typeArrayOop(a)->bool_at(index);
duke@435:         break;
duke@435:       case T_CHAR:
duke@435:         value->c = typeArrayOop(a)->char_at(index);
duke@435:         break;
duke@435:       case T_FLOAT:
duke@435:         value->f = typeArrayOop(a)->float_at(index);
duke@435:         break;
duke@435:       case T_DOUBLE:
duke@435:         value->d = typeArrayOop(a)->double_at(index);
duke@435:         break;
duke@435:       case T_BYTE:
duke@435:         value->b = typeArrayOop(a)->byte_at(index);
duke@435:         break;
duke@435:       case T_SHORT:
duke@435:         value->s = typeArrayOop(a)->short_at(index);
duke@435:         break;
duke@435:       case T_INT:
duke@435:         value->i = typeArrayOop(a)->int_at(index);
duke@435:         break;
duke@435:       case T_LONG:
duke@435:         value->j = typeArrayOop(a)->long_at(index);
duke@435:         break;
duke@435:       default:
duke@435:         return T_ILLEGAL;
duke@435:     }
duke@435:     return type;
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
duke@435: void Reflection::array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS) {
duke@435:   if (!a->is_within_bounds(index)) {
duke@435:     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
duke@435:   }
duke@435:   if (a->is_objArray()) {
duke@435:     if (value_type == T_OBJECT) {
duke@435:       oop obj = (oop) value->l;
duke@435:       if (obj != NULL) {
duke@435:         klassOop element_klass = objArrayKlass::cast(a->klass())->element_klass();
duke@435:         if (!obj->is_a(element_klass)) {
duke@435:           THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "array element type mismatch");
duke@435:         }
duke@435:       }
duke@435:       objArrayOop(a)->obj_at_put(index, obj);
duke@435:     }
duke@435:   } else {
duke@435:     assert(a->is_typeArray(), "just checking");
duke@435:     BasicType array_type = typeArrayKlass::cast(a->klass())->element_type();
duke@435:     if (array_type != value_type) {
duke@435:       // The widen operation can potentially throw an exception, but cannot block,
duke@435:       // so typeArrayOop a is safe if the call succeeds.
duke@435:       widen(value, value_type, array_type, CHECK);
duke@435:     }
duke@435:     switch (array_type) {
duke@435:       case T_BOOLEAN:
duke@435:         typeArrayOop(a)->bool_at_put(index, value->z);
duke@435:         break;
duke@435:       case T_CHAR:
duke@435:         typeArrayOop(a)->char_at_put(index, value->c);
duke@435:         break;
duke@435:       case T_FLOAT:
duke@435:         typeArrayOop(a)->float_at_put(index, value->f);
duke@435:         break;
duke@435:       case T_DOUBLE:
duke@435:         typeArrayOop(a)->double_at_put(index, value->d);
duke@435:         break;
duke@435:       case T_BYTE:
duke@435:         typeArrayOop(a)->byte_at_put(index, value->b);
duke@435:         break;
duke@435:       case T_SHORT:
duke@435:         typeArrayOop(a)->short_at_put(index, value->s);
duke@435:         break;
duke@435:       case T_INT:
duke@435:         typeArrayOop(a)->int_at_put(index, value->i);
duke@435:         break;
duke@435:       case T_LONG:
duke@435:         typeArrayOop(a)->long_at_put(index, value->j);
duke@435:         break;
duke@435:       default:
duke@435:         THROW(vmSymbols::java_lang_IllegalArgumentException());
duke@435:     }
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
duke@435: klassOop Reflection::basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS) {
duke@435:   assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking");
duke@435:   BasicType type = java_lang_Class::primitive_type(basic_type_mirror);
duke@435:   if (type == T_VOID) {
duke@435:     THROW_0(vmSymbols::java_lang_IllegalArgumentException());
duke@435:   } else {
duke@435:     return Universe::typeArrayKlassObj(type);
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
duke@435: oop Reflection:: basic_type_arrayklass_to_mirror(klassOop basic_type_arrayklass, TRAPS) {
duke@435:   BasicType type = typeArrayKlass::cast(basic_type_arrayklass)->element_type();
duke@435:   return Universe::java_mirror(type);
duke@435: }
duke@435: 
duke@435: 
duke@435: arrayOop Reflection::reflect_new_array(oop element_mirror, jint length, TRAPS) {
duke@435:   if (element_mirror == NULL) {
duke@435:     THROW_0(vmSymbols::java_lang_NullPointerException());
duke@435:   }
duke@435:   if (length < 0) {
duke@435:     THROW_0(vmSymbols::java_lang_NegativeArraySizeException());
duke@435:   }
duke@435:   if (java_lang_Class::is_primitive(element_mirror)) {
duke@435:     klassOop tak = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL);
duke@435:     return typeArrayKlass::cast(tak)->allocate(length, THREAD);
duke@435:   } else {
duke@435:     klassOop k = java_lang_Class::as_klassOop(element_mirror);
duke@435:     if (Klass::cast(k)->oop_is_array() && arrayKlass::cast(k)->dimension() >= MAX_DIM) {
duke@435:       THROW_0(vmSymbols::java_lang_IllegalArgumentException());
duke@435:     }
duke@435:     return oopFactory::new_objArray(k, length, THREAD);
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
duke@435: arrayOop Reflection::reflect_new_multi_array(oop element_mirror, typeArrayOop dim_array, TRAPS) {
duke@435:   assert(dim_array->is_typeArray(), "just checking");
duke@435:   assert(typeArrayKlass::cast(dim_array->klass())->element_type() == T_INT, "just checking");
duke@435: 
duke@435:   if (element_mirror == NULL) {
duke@435:     THROW_0(vmSymbols::java_lang_NullPointerException());
duke@435:   }
duke@435: 
duke@435:   int len = dim_array->length();
duke@435:   if (len <= 0 || len > MAX_DIM) {
duke@435:     THROW_0(vmSymbols::java_lang_IllegalArgumentException());
duke@435:   }
duke@435: 
duke@435:   jint dimensions[MAX_DIM];   // C array copy of intArrayOop
duke@435:   for (int i = 0; i < len; i++) {
duke@435:     int d = dim_array->int_at(i);
duke@435:     if (d < 0) {
duke@435:       THROW_0(vmSymbols::java_lang_NegativeArraySizeException());
duke@435:     }
duke@435:     dimensions[i] = d;
duke@435:   }
duke@435: 
duke@435:   klassOop klass;
duke@435:   int dim = len;
duke@435:   if (java_lang_Class::is_primitive(element_mirror)) {
duke@435:     klass = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL);
duke@435:   } else {
duke@435:     klass = java_lang_Class::as_klassOop(element_mirror);
duke@435:     if (Klass::cast(klass)->oop_is_array()) {
duke@435:       int k_dim = arrayKlass::cast(klass)->dimension();
duke@435:       if (k_dim + len > MAX_DIM) {
duke@435:         THROW_0(vmSymbols::java_lang_IllegalArgumentException());
duke@435:       }
duke@435:       dim += k_dim;
duke@435:     }
duke@435:   }
duke@435:   klass = Klass::cast(klass)->array_klass(dim, CHECK_NULL);
duke@435:   oop obj = arrayKlass::cast(klass)->multi_allocate(len, dimensions, THREAD);
duke@435:   assert(obj->is_array(), "just checking");
duke@435:   return arrayOop(obj);
duke@435: }
duke@435: 
duke@435: 
duke@435: oop Reflection::array_component_type(oop mirror, TRAPS) {
duke@435:   if (java_lang_Class::is_primitive(mirror)) {
duke@435:     return NULL;
duke@435:   }
duke@435: 
duke@435:   klassOop klass = java_lang_Class::as_klassOop(mirror);
duke@435:   if (!Klass::cast(klass)->oop_is_array()) {
duke@435:     return NULL;
duke@435:   }
duke@435: 
duke@435:   oop result = arrayKlass::cast(klass)->component_mirror();
duke@435: #ifdef ASSERT
duke@435:   oop result2 = NULL;
duke@435:   if (arrayKlass::cast(klass)->dimension() == 1) {
duke@435:     if (Klass::cast(klass)->oop_is_typeArray()) {
duke@435:       result2 = basic_type_arrayklass_to_mirror(klass, CHECK_NULL);
duke@435:     } else {
duke@435:       result2 = Klass::cast(objArrayKlass::cast(klass)->element_klass())->java_mirror();
duke@435:     }
duke@435:   } else {
duke@435:     klassOop lower_dim = arrayKlass::cast(klass)->lower_dimension();
duke@435:     assert(Klass::cast(lower_dim)->oop_is_array(), "just checking");
duke@435:     result2 = Klass::cast(lower_dim)->java_mirror();
duke@435:   }
duke@435:   assert(result == result2, "results must be consistent");
duke@435: #endif //ASSERT
duke@435:   return result;
duke@435: }
duke@435: 
duke@435: 
duke@435: bool Reflection::reflect_check_access(klassOop field_class, AccessFlags acc, klassOop target_class, bool is_method_invoke, TRAPS) {
duke@435:   // field_class  : declaring class
duke@435:   // acc          : declared field access
duke@435:   // target_class : for protected
duke@435: 
duke@435:   // Check if field or method is accessible to client.  Throw an
duke@435:   // IllegalAccessException and return false if not.
duke@435: 
duke@435:   // The "client" is the class associated with the nearest real frame
duke@435:   // getCallerClass already skips Method.invoke frames, so pass 0 in
duke@435:   // that case (same as classic).
duke@435:   ResourceMark rm(THREAD);
duke@435:   assert(THREAD->is_Java_thread(), "sanity check");
duke@435:   klassOop client_class = ((JavaThread *)THREAD)->security_get_caller_class(is_method_invoke ? 0 : 1);
duke@435: 
duke@435:   if (client_class != field_class) {
duke@435:     if (!verify_class_access(client_class, field_class, false)
duke@435:         || !verify_field_access(client_class,
duke@435:                                 field_class,
duke@435:                                 field_class,
duke@435:                                 acc,
duke@435:                                 false)) {
duke@435:       THROW_(vmSymbols::java_lang_IllegalAccessException(), false);
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   // Additional test for protected members: JLS 6.6.2
duke@435: 
duke@435:   if (acc.is_protected()) {
duke@435:     if (target_class != client_class) {
duke@435:       if (!is_same_class_package(client_class, field_class)) {
duke@435:         if (!Klass::cast(target_class)->is_subclass_of(client_class)) {
duke@435:           THROW_(vmSymbols::java_lang_IllegalAccessException(), false);
duke@435:         }
duke@435:       }
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   // Passed all tests
duke@435:   return true;
duke@435: }
duke@435: 
duke@435: 
duke@435: bool Reflection::verify_class_access(klassOop current_class, klassOop new_class, bool classloader_only) {
duke@435:   // Verify that current_class can access new_class.  If the classloader_only
duke@435:   // flag is set, we automatically allow any accesses in which current_class
duke@435:   // doesn't have a classloader.
duke@435:   if ((current_class == NULL) ||
duke@435:       (current_class == new_class) ||
duke@435:       (instanceKlass::cast(new_class)->is_public()) ||
duke@435:       is_same_class_package(current_class, new_class)) {
duke@435:     return true;
duke@435:   }
duke@435:   // New (1.4) reflection implementation. Allow all accesses from
duke@435:   // sun/reflect/MagicAccessorImpl subclasses to succeed trivially.
duke@435:   if (   JDK_Version::is_gte_jdk14x_version()
duke@435:       && UseNewReflection
never@1577:       && Klass::cast(current_class)->is_subclass_of(SystemDictionary::reflect_MagicAccessorImpl_klass())) {
duke@435:     return true;
duke@435:   }
duke@435: 
duke@435:   return can_relax_access_check_for(current_class, new_class, classloader_only);
duke@435: }
duke@435: 
jrose@866: static bool under_host_klass(instanceKlass* ik, klassOop host_klass) {
jrose@866:   DEBUG_ONLY(int inf_loop_check = 1000 * 1000 * 1000);
jrose@866:   for (;;) {
jrose@866:     klassOop hc = (klassOop) ik->host_klass();
jrose@866:     if (hc == NULL)        return false;
jrose@866:     if (hc == host_klass)  return true;
jrose@866:     ik = instanceKlass::cast(hc);
jrose@866: 
jrose@866:     // There's no way to make a host class loop short of patching memory.
jrose@866:     // Therefore there cannot be a loop here unles there's another bug.
jrose@866:     // Still, let's check for it.
jrose@866:     assert(--inf_loop_check > 0, "no host_klass loop");
jrose@866:   }
jrose@866: }
jrose@866: 
duke@435: bool Reflection::can_relax_access_check_for(
duke@435:     klassOop accessor, klassOop accessee, bool classloader_only) {
duke@435:   instanceKlass* accessor_ik = instanceKlass::cast(accessor);
duke@435:   instanceKlass* accessee_ik  = instanceKlass::cast(accessee);
jrose@866: 
jrose@866:   // If either is on the other's host_klass chain, access is OK,
jrose@866:   // because one is inside the other.
jrose@866:   if (under_host_klass(accessor_ik, accessee) ||
jrose@866:       under_host_klass(accessee_ik, accessor))
jrose@866:     return true;
jrose@866: 
twisti@1587:   // Adapter frames can access anything.
twisti@1587:   if (MethodHandleCompiler::klass_is_method_handle_adapter_holder(accessor))
twisti@1587:     // This is an internal adapter frame from the MethodHandleCompiler.
twisti@1587:     return true;
twisti@1587: 
duke@435:   if (RelaxAccessControlCheck ||
duke@435:       (accessor_ik->major_version() < JAVA_1_5_VERSION &&
duke@435:        accessee_ik->major_version() < JAVA_1_5_VERSION)) {
duke@435:     return classloader_only &&
duke@435:       Verifier::relax_verify_for(accessor_ik->class_loader()) &&
duke@435:       accessor_ik->protection_domain() == accessee_ik->protection_domain() &&
duke@435:       accessor_ik->class_loader() == accessee_ik->class_loader();
duke@435:   } else {
duke@435:     return false;
duke@435:   }
duke@435: }
duke@435: 
duke@435: bool Reflection::verify_field_access(klassOop current_class,
duke@435:                                      klassOop resolved_class,
duke@435:                                      klassOop field_class,
duke@435:                                      AccessFlags access,
duke@435:                                      bool classloader_only,
duke@435:                                      bool protected_restriction) {
duke@435:   // Verify that current_class can access a field of field_class, where that
duke@435:   // field's access bits are "access".  We assume that we've already verified
duke@435:   // that current_class can access field_class.
duke@435:   //
duke@435:   // If the classloader_only flag is set, we automatically allow any accesses
duke@435:   // in which current_class doesn't have a classloader.
duke@435:   //
duke@435:   // "resolved_class" is the runtime type of "field_class". Sometimes we don't
duke@435:   // need this distinction (e.g. if all we have is the runtime type, or during
duke@435:   // class file parsing when we only care about the static type); in that case
duke@435:   // callers should ensure that resolved_class == field_class.
duke@435:   //
duke@435:   if ((current_class == NULL) ||
duke@435:       (current_class == field_class) ||
duke@435:       access.is_public()) {
duke@435:     return true;
duke@435:   }
duke@435: 
duke@435:   if (access.is_protected()) {
duke@435:     if (!protected_restriction) {
duke@435:       // See if current_class is a subclass of field_class
duke@435:       if (Klass::cast(current_class)->is_subclass_of(field_class)) {
kamg@550:         if (access.is_static() || // static fields are ok, see 6622385
kamg@550:             current_class == resolved_class ||
duke@435:             field_class == resolved_class ||
duke@435:             Klass::cast(current_class)->is_subclass_of(resolved_class) ||
duke@435:             Klass::cast(resolved_class)->is_subclass_of(current_class)) {
duke@435:           return true;
duke@435:         }
duke@435:       }
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   if (!access.is_private() && is_same_class_package(current_class, field_class)) {
duke@435:     return true;
duke@435:   }
duke@435: 
duke@435:   // New (1.4) reflection implementation. Allow all accesses from
duke@435:   // sun/reflect/MagicAccessorImpl subclasses to succeed trivially.
duke@435:   if (   JDK_Version::is_gte_jdk14x_version()
duke@435:       && UseNewReflection
never@1577:       && Klass::cast(current_class)->is_subclass_of(SystemDictionary::reflect_MagicAccessorImpl_klass())) {
duke@435:     return true;
duke@435:   }
duke@435: 
duke@435:   return can_relax_access_check_for(
duke@435:     current_class, field_class, classloader_only);
duke@435: }
duke@435: 
duke@435: 
duke@435: bool Reflection::is_same_class_package(klassOop class1, klassOop class2) {
duke@435:   return instanceKlass::cast(class1)->is_same_class_package(class2);
duke@435: }
duke@435: 
jrose@1100: bool Reflection::is_same_package_member(klassOop class1, klassOop class2, TRAPS) {
jrose@1100:   return instanceKlass::cast(class1)->is_same_package_member(class2, THREAD);
jrose@1100: }
jrose@1100: 
duke@435: 
duke@435: // Checks that the 'outer' klass has declared 'inner' as being an inner klass. If not,
duke@435: // throw an incompatible class change exception
jrose@1100: // If inner_is_member, require the inner to be a member of the outer.
jrose@1100: // If !inner_is_member, require the inner to be anonymous (a non-member).
jrose@1100: // Caller is responsible for figuring out in advance which case must be true.
jrose@1100: void Reflection::check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner,
jrose@1100:                                        bool inner_is_member, TRAPS) {
duke@435:   const int inner_class_info_index = 0;
duke@435:   const int outer_class_info_index = 1;
duke@435: 
duke@435:   typeArrayHandle    icls (THREAD, outer->inner_classes());
duke@435:   constantPoolHandle cp   (THREAD, outer->constants());
duke@435:   for(int i = 0; i < icls->length(); i += 4) {
duke@435:      int ioff = icls->ushort_at(i + inner_class_info_index);
duke@435:      int ooff = icls->ushort_at(i + outer_class_info_index);
duke@435: 
jrose@1100:      if (inner_is_member && ioff != 0 && ooff != 0) {
duke@435:         klassOop o = cp->klass_at(ooff, CHECK);
duke@435:         if (o == outer()) {
duke@435:           klassOop i = cp->klass_at(ioff, CHECK);
duke@435:           if (i == inner()) {
duke@435:             return;
duke@435:           }
duke@435:         }
duke@435:      }
jrose@1100:      if (!inner_is_member && ioff != 0 && ooff == 0 &&
jrose@1100:          cp->klass_name_at_matches(inner, ioff)) {
jrose@1100:         klassOop i = cp->klass_at(ioff, CHECK);
jrose@1100:         if (i == inner()) {
jrose@1100:           return;
jrose@1100:         }
jrose@1100:      }
duke@435:   }
duke@435: 
duke@435:   // 'inner' not declared as an inner klass in outer
duke@435:   ResourceMark rm(THREAD);
duke@435:   Exceptions::fthrow(
duke@435:     THREAD_AND_LOCATION,
coleenp@2497:     vmSymbols::java_lang_IncompatibleClassChangeError(),
duke@435:     "%s and %s disagree on InnerClasses attribute",
duke@435:     outer->external_name(),
duke@435:     inner->external_name()
duke@435:   );
duke@435: }
duke@435: 
duke@435: // Utility method converting a single SignatureStream element into java.lang.Class instance
duke@435: 
duke@435: oop get_mirror_from_signature(methodHandle method, SignatureStream* ss, TRAPS) {
duke@435:   switch (ss->type()) {
duke@435:     default:
duke@435:       assert(ss->type() != T_VOID || ss->at_return_type(), "T_VOID should only appear as return type");
duke@435:       return java_lang_Class::primitive_mirror(ss->type());
duke@435:     case T_OBJECT:
duke@435:     case T_ARRAY:
coleenp@2497:       Symbol* name        = ss->as_symbol(CHECK_NULL);
duke@435:       oop loader            = instanceKlass::cast(method->method_holder())->class_loader();
duke@435:       oop protection_domain = instanceKlass::cast(method->method_holder())->protection_domain();
duke@435:       klassOop k = SystemDictionary::resolve_or_fail(
coleenp@2497:                                        name,
duke@435:                                        Handle(THREAD, loader),
duke@435:                                        Handle(THREAD, protection_domain),
duke@435:                                        true, CHECK_NULL);
duke@435:       if (TraceClassResolution) {
duke@435:         trace_class_resolution(k);
duke@435:       }
duke@435:       return k->klass_part()->java_mirror();
duke@435:   };
duke@435: }
duke@435: 
duke@435: 
duke@435: objArrayHandle Reflection::get_parameter_types(methodHandle method, int parameter_count, oop* return_type, TRAPS) {
duke@435:   // Allocate array holding parameter types (java.lang.Class instances)
never@1577:   objArrayOop m = oopFactory::new_objArray(SystemDictionary::Class_klass(), parameter_count, CHECK_(objArrayHandle()));
duke@435:   objArrayHandle mirrors (THREAD, m);
duke@435:   int index = 0;
duke@435:   // Collect parameter types
coleenp@2497:   ResourceMark rm(THREAD);
coleenp@2497:   Symbol*  signature  = method->signature();
duke@435:   SignatureStream ss(signature);
duke@435:   while (!ss.at_return_type()) {
duke@435:     oop mirror = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle()));
duke@435:     mirrors->obj_at_put(index++, mirror);
duke@435:     ss.next();
duke@435:   }
duke@435:   assert(index == parameter_count, "invalid parameter count");
duke@435:   if (return_type != NULL) {
duke@435:     // Collect return type as well
duke@435:     assert(ss.at_return_type(), "return type should be present");
duke@435:     *return_type = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle()));
duke@435:   }
duke@435:   return mirrors;
duke@435: }
duke@435: 
duke@435: objArrayHandle Reflection::get_exception_types(methodHandle method, TRAPS) {
duke@435:   return method->resolved_checked_exceptions(CHECK_(objArrayHandle()));
duke@435: }
duke@435: 
duke@435: 
coleenp@2497: Handle Reflection::new_type(Symbol* signature, KlassHandle k, TRAPS) {
duke@435:   // Basic types
coleenp@2497:   BasicType type = vmSymbols::signature_type(signature);
duke@435:   if (type != T_OBJECT) {
duke@435:     return Handle(THREAD, Universe::java_mirror(type));
duke@435:   }
duke@435: 
duke@435:   oop loader = instanceKlass::cast(k())->class_loader();
duke@435:   oop protection_domain = Klass::cast(k())->protection_domain();
duke@435:   klassOop result = SystemDictionary::resolve_or_fail(signature,
duke@435:                                     Handle(THREAD, loader),
duke@435:                                     Handle(THREAD, protection_domain),
duke@435:                                     true, CHECK_(Handle()));
duke@435: 
duke@435:   if (TraceClassResolution) {
duke@435:     trace_class_resolution(result);
duke@435:   }
duke@435: 
duke@435:   oop nt = Klass::cast(result)->java_mirror();
duke@435:   return Handle(THREAD, nt);
duke@435: }
duke@435: 
duke@435: 
duke@435: oop Reflection::new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS) {
duke@435:   // In jdk1.2.x, getMethods on an interface erroneously includes <clinit>, thus the complicated assert.
duke@435:   // Also allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods.
duke@435:   assert(!method()->is_initializer() ||
duke@435:          (for_constant_pool_access && method()->is_static()) ||
duke@435:          (method()->name() == vmSymbols::class_initializer_name()
duke@435:     && Klass::cast(method()->method_holder())->is_interface() && JDK_Version::is_jdk12x_version()), "should call new_constructor instead");
duke@435:   instanceKlassHandle holder (THREAD, method->method_holder());
duke@435:   int slot = method->method_idnum();
duke@435: 
coleenp@2497:   Symbol*  signature  = method->signature();
duke@435:   int parameter_count = ArgumentCount(signature).size();
duke@435:   oop return_type_oop = NULL;
duke@435:   objArrayHandle parameter_types = get_parameter_types(method, parameter_count, &return_type_oop, CHECK_NULL);
duke@435:   if (parameter_types.is_null() || return_type_oop == NULL) return NULL;
duke@435: 
duke@435:   Handle return_type(THREAD, return_type_oop);
duke@435: 
duke@435:   objArrayHandle exception_types = get_exception_types(method, CHECK_NULL);
duke@435: 
duke@435:   if (exception_types.is_null()) return NULL;
duke@435: 
coleenp@2497:   Symbol*  method_name = method->name();
duke@435:   Handle name;
duke@435:   if (intern_name) {
duke@435:     // intern_name is only true with UseNewReflection
coleenp@2497:     oop name_oop = StringTable::intern(method_name, CHECK_NULL);
duke@435:     name = Handle(THREAD, name_oop);
duke@435:   } else {
duke@435:     name = java_lang_String::create_from_symbol(method_name, CHECK_NULL);
duke@435:   }
coleenp@2497:   if (name == NULL) return NULL;
duke@435: 
duke@435:   int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
duke@435: 
duke@435:   Handle mh = java_lang_reflect_Method::create(CHECK_NULL);
duke@435: 
duke@435:   java_lang_reflect_Method::set_clazz(mh(), holder->java_mirror());
duke@435:   java_lang_reflect_Method::set_slot(mh(), slot);
duke@435:   java_lang_reflect_Method::set_name(mh(), name());
duke@435:   java_lang_reflect_Method::set_return_type(mh(), return_type());
duke@435:   java_lang_reflect_Method::set_parameter_types(mh(), parameter_types());
duke@435:   java_lang_reflect_Method::set_exception_types(mh(), exception_types());
duke@435:   java_lang_reflect_Method::set_modifiers(mh(), modifiers);
duke@435:   java_lang_reflect_Method::set_override(mh(), false);
duke@435:   if (java_lang_reflect_Method::has_signature_field() &&
duke@435:       method->generic_signature() != NULL) {
coleenp@2497:     Symbol*  gs = method->generic_signature();
duke@435:     Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
duke@435:     java_lang_reflect_Method::set_signature(mh(), sig());
duke@435:   }
duke@435:   if (java_lang_reflect_Method::has_annotations_field()) {
duke@435:     java_lang_reflect_Method::set_annotations(mh(), method->annotations());
duke@435:   }
duke@435:   if (java_lang_reflect_Method::has_parameter_annotations_field()) {
duke@435:     java_lang_reflect_Method::set_parameter_annotations(mh(), method->parameter_annotations());
duke@435:   }
duke@435:   if (java_lang_reflect_Method::has_annotation_default_field()) {
duke@435:     java_lang_reflect_Method::set_annotation_default(mh(), method->annotation_default());
duke@435:   }
duke@435:   return mh();
duke@435: }
duke@435: 
duke@435: 
duke@435: oop Reflection::new_constructor(methodHandle method, TRAPS) {
duke@435:   assert(method()->is_initializer(), "should call new_method instead");
duke@435: 
duke@435:   instanceKlassHandle  holder (THREAD, method->method_holder());
duke@435:   int slot = method->method_idnum();
duke@435: 
coleenp@2497:   Symbol*  signature  = method->signature();
duke@435:   int parameter_count = ArgumentCount(signature).size();
duke@435:   objArrayHandle parameter_types = get_parameter_types(method, parameter_count, NULL, CHECK_NULL);
duke@435:   if (parameter_types.is_null()) return NULL;
duke@435: 
duke@435:   objArrayHandle exception_types = get_exception_types(method, CHECK_NULL);
duke@435:   if (exception_types.is_null()) return NULL;
duke@435: 
duke@435:   int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
duke@435: 
duke@435:   Handle ch = java_lang_reflect_Constructor::create(CHECK_NULL);
duke@435: 
duke@435:   java_lang_reflect_Constructor::set_clazz(ch(), holder->java_mirror());
duke@435:   java_lang_reflect_Constructor::set_slot(ch(), slot);
duke@435:   java_lang_reflect_Constructor::set_parameter_types(ch(), parameter_types());
duke@435:   java_lang_reflect_Constructor::set_exception_types(ch(), exception_types());
duke@435:   java_lang_reflect_Constructor::set_modifiers(ch(), modifiers);
duke@435:   java_lang_reflect_Constructor::set_override(ch(), false);
duke@435:   if (java_lang_reflect_Constructor::has_signature_field() &&
duke@435:       method->generic_signature() != NULL) {
coleenp@2497:     Symbol*  gs = method->generic_signature();
duke@435:     Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
duke@435:     java_lang_reflect_Constructor::set_signature(ch(), sig());
duke@435:   }
duke@435:   if (java_lang_reflect_Constructor::has_annotations_field()) {
duke@435:     java_lang_reflect_Constructor::set_annotations(ch(), method->annotations());
duke@435:   }
duke@435:   if (java_lang_reflect_Constructor::has_parameter_annotations_field()) {
duke@435:     java_lang_reflect_Constructor::set_parameter_annotations(ch(), method->parameter_annotations());
duke@435:   }
duke@435:   return ch();
duke@435: }
duke@435: 
duke@435: 
duke@435: oop Reflection::new_field(fieldDescriptor* fd, bool intern_name, TRAPS) {
coleenp@2497:   Symbol*  field_name = fd->name();
duke@435:   Handle name;
duke@435:   if (intern_name) {
duke@435:     // intern_name is only true with UseNewReflection
coleenp@2497:     oop name_oop = StringTable::intern(field_name, CHECK_NULL);
duke@435:     name = Handle(THREAD, name_oop);
duke@435:   } else {
duke@435:     name = java_lang_String::create_from_symbol(field_name, CHECK_NULL);
duke@435:   }
coleenp@2497:   Symbol*  signature  = fd->signature();
duke@435:   KlassHandle  holder    (THREAD, fd->field_holder());
duke@435:   Handle type = new_type(signature, holder, CHECK_NULL);
duke@435:   Handle rh  = java_lang_reflect_Field::create(CHECK_NULL);
duke@435: 
duke@435:   java_lang_reflect_Field::set_clazz(rh(), Klass::cast(fd->field_holder())->java_mirror());
duke@435:   java_lang_reflect_Field::set_slot(rh(), fd->index());
duke@435:   java_lang_reflect_Field::set_name(rh(), name());
duke@435:   java_lang_reflect_Field::set_type(rh(), type());
duke@435:   // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here.
duke@435:   java_lang_reflect_Field::set_modifiers(rh(), fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS);
duke@435:   java_lang_reflect_Field::set_override(rh(), false);
duke@435:   if (java_lang_reflect_Field::has_signature_field() &&
duke@435:       fd->generic_signature() != NULL) {
coleenp@2497:     Symbol*  gs = fd->generic_signature();
duke@435:     Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
duke@435:     java_lang_reflect_Field::set_signature(rh(), sig());
duke@435:   }
duke@435:   if (java_lang_reflect_Field::has_annotations_field()) {
duke@435:     java_lang_reflect_Field::set_annotations(rh(), fd->annotations());
duke@435:   }
duke@435:   return rh();
duke@435: }
duke@435: 
duke@435: 
duke@435: //---------------------------------------------------------------------------
duke@435: //
duke@435: // Supporting routines for old native code-based reflection (pre-JDK 1.4).
duke@435: //
duke@435: // See reflection.hpp for details.
duke@435: //
duke@435: //---------------------------------------------------------------------------
duke@435: 
duke@435: #ifdef SUPPORT_OLD_REFLECTION
duke@435: 
duke@435: methodHandle Reflection::resolve_interface_call(instanceKlassHandle klass, methodHandle method,
duke@435:                                                 KlassHandle recv_klass, Handle receiver, TRAPS) {
duke@435:   assert(!method.is_null() , "method should not be null");
duke@435: 
duke@435:   CallInfo info;
coleenp@2497:   Symbol*  signature  = method->signature();
coleenp@2497:   Symbol*  name       = method->name();
duke@435:   LinkResolver::resolve_interface_call(info, receiver, recv_klass, klass,
duke@435:                                        name, signature,
duke@435:                                        KlassHandle(), false, true,
duke@435:                                        CHECK_(methodHandle()));
duke@435:   return info.selected_method();
duke@435: }
duke@435: 
duke@435: 
duke@435: oop Reflection::invoke(instanceKlassHandle klass, methodHandle reflected_method,
duke@435:                        Handle receiver, bool override, objArrayHandle ptypes,
duke@435:                        BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS) {
duke@435:   ResourceMark rm(THREAD);
duke@435: 
duke@435:   methodHandle method;      // actual method to invoke
duke@435:   KlassHandle target_klass; // target klass, receiver's klass for non-static
duke@435: 
duke@435:   // Ensure klass is initialized
duke@435:   klass->initialize(CHECK_NULL);
duke@435: 
duke@435:   bool is_static = reflected_method->is_static();
duke@435:   if (is_static) {
duke@435:     // ignore receiver argument
duke@435:     method = reflected_method;
duke@435:     target_klass = klass;
duke@435:   } else {
duke@435:     // check for null receiver
duke@435:     if (receiver.is_null()) {
duke@435:       THROW_0(vmSymbols::java_lang_NullPointerException());
duke@435:     }
duke@435:     // Check class of receiver against class declaring method
duke@435:     if (!receiver->is_a(klass())) {
duke@435:       THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class");
duke@435:     }
duke@435:     // target klass is receiver's klass
duke@435:     target_klass = KlassHandle(THREAD, receiver->klass());
duke@435:     // no need to resolve if method is private or <init>
duke@435:     if (reflected_method->is_private() || reflected_method->name() == vmSymbols::object_initializer_name()) {
duke@435:       method = reflected_method;
duke@435:     } else {
duke@435:       // resolve based on the receiver
duke@435:       if (instanceKlass::cast(reflected_method->method_holder())->is_interface()) {
duke@435:         // resolve interface call
duke@435:         if (ReflectionWrapResolutionErrors) {
duke@435:           // new default: 6531596
duke@435:           // Match resolution errors with those thrown due to reflection inlining
duke@435:           // Linktime resolution & IllegalAccessCheck already done by Class.getMethod()
duke@435:           method = resolve_interface_call(klass, reflected_method, target_klass, receiver, THREAD);
duke@435:           if (HAS_PENDING_EXCEPTION) {
duke@435:           // Method resolution threw an exception; wrap it in an InvocationTargetException
duke@435:             oop resolution_exception = PENDING_EXCEPTION;
duke@435:             CLEAR_PENDING_EXCEPTION;
duke@435:             JavaCallArguments args(Handle(THREAD, resolution_exception));
coleenp@2497:             THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(),
coleenp@2497:                 vmSymbols::throwable_void_signature(),
duke@435:                 &args);
duke@435:           }
duke@435:         } else {
duke@435:           method = resolve_interface_call(klass, reflected_method, target_klass, receiver, CHECK_(NULL));
duke@435:         }
duke@435:       }  else {
duke@435:         // if the method can be overridden, we resolve using the vtable index.
duke@435:         int index  = reflected_method->vtable_index();
duke@435:         method = reflected_method;
duke@435:         if (index != methodOopDesc::nonvirtual_vtable_index) {
duke@435:           // target_klass might be an arrayKlassOop but all vtables start at
duke@435:           // the same place. The cast is to avoid virtual call and assertion.
duke@435:           instanceKlass* inst = (instanceKlass*)target_klass()->klass_part();
duke@435:           method = methodHandle(THREAD, inst->method_at_vtable(index));
duke@435:         }
duke@435:         if (!method.is_null()) {
duke@435:           // Check for abstract methods as well
duke@435:           if (method->is_abstract()) {
duke@435:             // new default: 6531596
duke@435:             if (ReflectionWrapResolutionErrors) {
duke@435:               ResourceMark rm(THREAD);
duke@435:               Handle h_origexception = Exceptions::new_exception(THREAD,
duke@435:                      vmSymbols::java_lang_AbstractMethodError(),
duke@435:                      methodOopDesc::name_and_sig_as_C_string(Klass::cast(target_klass()),
duke@435:                      method->name(),
duke@435:                      method->signature()));
duke@435:               JavaCallArguments args(h_origexception);
coleenp@2497:               THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(),
coleenp@2497:                 vmSymbols::throwable_void_signature(),
duke@435:                 &args);
duke@435:             } else {
duke@435:               ResourceMark rm(THREAD);
duke@435:               THROW_MSG_0(vmSymbols::java_lang_AbstractMethodError(),
duke@435:                         methodOopDesc::name_and_sig_as_C_string(Klass::cast(target_klass()),
duke@435:                                                                 method->name(),
duke@435:                                                                 method->signature()));
duke@435:             }
duke@435:           }
duke@435:         }
duke@435:       }
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   // I believe this is a ShouldNotGetHere case which requires
duke@435:   // an internal vtable bug. If you ever get this please let Karen know.
duke@435:   if (method.is_null()) {
duke@435:     ResourceMark rm(THREAD);
duke@435:     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(),
duke@435:                 methodOopDesc::name_and_sig_as_C_string(Klass::cast(klass()),
duke@435:                                                         reflected_method->name(),
duke@435:                                                         reflected_method->signature()));
duke@435:   }
duke@435: 
duke@435:   // In the JDK 1.4 reflection implementation, the security check is
duke@435:   // done at the Java level
duke@435:   if (!(JDK_Version::is_gte_jdk14x_version() && UseNewReflection)) {
duke@435: 
duke@435:   // Access checking (unless overridden by Method)
duke@435:   if (!override) {
duke@435:     if (!(klass->is_public() && reflected_method->is_public())) {
duke@435:       bool access = Reflection::reflect_check_access(klass(), reflected_method->access_flags(), target_klass(), is_method_invoke, CHECK_NULL);
duke@435:       if (!access) {
duke@435:         return NULL; // exception
duke@435:       }
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   } // !(Universe::is_gte_jdk14x_version() && UseNewReflection)
duke@435: 
duke@435:   assert(ptypes->is_objArray(), "just checking");
duke@435:   int args_len = args.is_null() ? 0 : args->length();
duke@435:   // Check number of arguments
duke@435:   if (ptypes->length() != args_len) {
duke@435:     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "wrong number of arguments");
duke@435:   }
duke@435: 
duke@435:   // Create object to contain parameters for the JavaCall
duke@435:   JavaCallArguments java_args(method->size_of_parameters());
duke@435: 
duke@435:   if (!is_static) {
duke@435:     java_args.push_oop(receiver);
duke@435:   }
duke@435: 
duke@435:   for (int i = 0; i < args_len; i++) {
duke@435:     oop type_mirror = ptypes->obj_at(i);
duke@435:     oop arg = args->obj_at(i);
duke@435:     if (java_lang_Class::is_primitive(type_mirror)) {
duke@435:       jvalue value;
duke@435:       BasicType ptype = basic_type_mirror_to_basic_type(type_mirror, CHECK_NULL);
duke@435:       BasicType atype = unbox_for_primitive(arg, &value, CHECK_NULL);
duke@435:       if (ptype != atype) {
duke@435:         widen(&value, atype, ptype, CHECK_NULL);
duke@435:       }
duke@435:       switch (ptype) {
duke@435:         case T_BOOLEAN:     java_args.push_int(value.z);    break;
duke@435:         case T_CHAR:        java_args.push_int(value.c);    break;
duke@435:         case T_BYTE:        java_args.push_int(value.b);    break;
duke@435:         case T_SHORT:       java_args.push_int(value.s);    break;
duke@435:         case T_INT:         java_args.push_int(value.i);    break;
duke@435:         case T_LONG:        java_args.push_long(value.j);   break;
duke@435:         case T_FLOAT:       java_args.push_float(value.f);  break;
duke@435:         case T_DOUBLE:      java_args.push_double(value.d); break;
duke@435:         default:
duke@435:           THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
duke@435:       }
duke@435:     } else {
duke@435:       if (arg != NULL) {
duke@435:         klassOop k = java_lang_Class::as_klassOop(type_mirror);
duke@435:         if (!arg->is_a(k)) {
duke@435:           THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
duke@435:         }
duke@435:       }
duke@435:       Handle arg_handle(THREAD, arg);         // Create handle for argument
duke@435:       java_args.push_oop(arg_handle); // Push handle
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   assert(java_args.size_of_parameters() == method->size_of_parameters(), "just checking");
duke@435: 
duke@435:   // All oops (including receiver) is passed in as Handles. An potential oop is returned as an
duke@435:   // oop (i.e., NOT as an handle)
duke@435:   JavaValue result(rtype);
duke@435:   JavaCalls::call(&result, method, &java_args, THREAD);
duke@435: 
duke@435:   if (HAS_PENDING_EXCEPTION) {
duke@435:     // Method threw an exception; wrap it in an InvocationTargetException
duke@435:     oop target_exception = PENDING_EXCEPTION;
duke@435:     CLEAR_PENDING_EXCEPTION;
duke@435:     JavaCallArguments args(Handle(THREAD, target_exception));
coleenp@2497:     THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(),
coleenp@2497:                 vmSymbols::throwable_void_signature(),
duke@435:                 &args);
duke@435:   } else {
duke@435:     if (rtype == T_BOOLEAN || rtype == T_BYTE || rtype == T_CHAR || rtype == T_SHORT)
duke@435:       narrow((jvalue*) result.get_value_addr(), rtype, CHECK_NULL);
duke@435:     return box((jvalue*) result.get_value_addr(), rtype, CHECK_NULL);
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
duke@435: void Reflection::narrow(jvalue* value, BasicType narrow_type, TRAPS) {
duke@435:   switch (narrow_type) {
duke@435:     case T_BOOLEAN:
duke@435:      value->z = (jboolean) value->i;
duke@435:      return;
duke@435:     case T_BYTE:
duke@435:      value->b = (jbyte) value->i;
duke@435:      return;
duke@435:     case T_CHAR:
duke@435:      value->c = (jchar) value->i;
duke@435:      return;
duke@435:     case T_SHORT:
duke@435:      value->s = (jshort) value->i;
duke@435:      return;
duke@435:     default:
duke@435:       break; // fail
duke@435:    }
duke@435:   THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
duke@435: }
duke@435: 
duke@435: 
duke@435: BasicType Reflection::basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS) {
duke@435:   assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking");
duke@435:   return java_lang_Class::primitive_type(basic_type_mirror);
duke@435: }
duke@435: 
duke@435: 
duke@435: bool Reflection::match_parameter_types(methodHandle method, objArrayHandle types, int parameter_count, TRAPS) {
duke@435:   int types_len = types.is_null() ? 0 : types->length();
duke@435:   if (types_len != parameter_count) return false;
duke@435:   if (parameter_count > 0) {
duke@435:     objArrayHandle method_types = get_parameter_types(method, parameter_count, NULL, CHECK_false);
duke@435:     for (int index = 0; index < parameter_count; index++) {
duke@435:       if (types->obj_at(index) != method_types->obj_at(index)) {
duke@435:         return false;
duke@435:       }
duke@435:     }
duke@435:   }
duke@435:   return true;
duke@435: }
duke@435: 
duke@435: 
duke@435: oop Reflection::new_field(FieldStream* st, TRAPS) {
coleenp@2497:   Symbol*  field_name = st->name();
duke@435:   Handle name = java_lang_String::create_from_symbol(field_name, CHECK_NULL);
coleenp@2497:   Symbol*  signature = st->signature();
duke@435:   Handle type = new_type(signature, st->klass(), CHECK_NULL);
duke@435:   Handle rh  = java_lang_reflect_Field::create(CHECK_NULL);
duke@435:   oop result = rh();
duke@435: 
duke@435:   java_lang_reflect_Field::set_clazz(result, st->klass()->java_mirror());
duke@435:   java_lang_reflect_Field::set_slot(result, st->index());
duke@435:   java_lang_reflect_Field::set_name(result, name());
duke@435:   java_lang_reflect_Field::set_type(result, type());
duke@435:   // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here.
duke@435:   java_lang_reflect_Field::set_modifiers(result, st->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS);
duke@435:   java_lang_reflect_Field::set_override(result, false);
duke@435:   return result;
duke@435: }
duke@435: 
duke@435: 
duke@435: bool Reflection::resolve_field(Handle field_mirror, Handle& receiver, fieldDescriptor* fd, bool check_final, TRAPS) {
duke@435:   if (field_mirror.is_null()) {
duke@435:     THROW_(vmSymbols::java_lang_NullPointerException(), false);
duke@435:   }
duke@435: 
duke@435:   instanceKlassHandle klass (THREAD, java_lang_Class::as_klassOop(java_lang_reflect_Field::clazz(field_mirror())));
duke@435:   int                 slot  = java_lang_reflect_Field::slot(field_mirror());
duke@435: 
duke@435:   // Ensure klass is initialized
duke@435:   klass->initialize(CHECK_false);
duke@435:   fd->initialize(klass(), slot);
duke@435: 
duke@435:   bool is_static = fd->is_static();
duke@435:   KlassHandle receiver_klass;
duke@435: 
duke@435:   if (is_static) {
duke@435:     receiver = KlassHandle(THREAD, klass());
duke@435:     receiver_klass = klass;
duke@435:   } else {
duke@435:     // Check object is a non-null instance of declaring class
duke@435:     if (receiver.is_null()) {
duke@435:       THROW_(vmSymbols::java_lang_NullPointerException(), false);
duke@435:     }
duke@435:     if (!receiver->is_a(klass())) {
duke@435:       THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class", false);
duke@435:     }
duke@435:     receiver_klass = KlassHandle(THREAD, receiver->klass());
duke@435:   }
duke@435: 
duke@435:   // Access checking (unless overridden by Field)
duke@435:   if (!java_lang_reflect_Field::override(field_mirror())) {
duke@435:     if (!(klass->is_public() && fd->is_public())) {
duke@435:       bool access_check = reflect_check_access(klass(), fd->access_flags(), receiver_klass(), false, CHECK_false);
duke@435:       if (!access_check) {
duke@435:         return false; // exception
duke@435:       }
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   if (check_final && fd->is_final()) {
duke@435:     // In 1.3 we always throw an error when attempting to set a final field.
duke@435:     // In 1.2.x, this was allowed in the override bit was set by calling Field.setAccessible(true).
duke@435:     // We currently maintain backwards compatibility. See bug 4250960.
duke@435:     bool strict_final_check = !JDK_Version::is_jdk12x_version();
duke@435:     if (strict_final_check || !java_lang_reflect_Field::override(field_mirror())) {
duke@435:       THROW_MSG_(vmSymbols::java_lang_IllegalAccessException(), "field is final", false);
duke@435:     }
duke@435:   }
duke@435:   return true;
duke@435: }
duke@435: 
duke@435: 
duke@435: BasicType Reflection::field_get(jvalue* value, fieldDescriptor* fd, Handle receiver)  {
duke@435:   BasicType field_type = fd->field_type();
duke@435:   int offset = fd->offset();
duke@435:   switch (field_type) {
duke@435:     case T_BOOLEAN:
duke@435:       value->z = receiver->bool_field(offset);
duke@435:       break;
duke@435:     case T_CHAR:
duke@435:       value->c = receiver->char_field(offset);
duke@435:       break;
duke@435:     case T_FLOAT:
duke@435:       value->f = receiver->float_field(offset);
duke@435:       break;
duke@435:     case T_DOUBLE:
duke@435:       value->d = receiver->double_field(offset);
duke@435:       break;
duke@435:     case T_BYTE:
duke@435:       value->b = receiver->byte_field(offset);
duke@435:       break;
duke@435:     case T_SHORT:
duke@435:       value->s = receiver->short_field(offset);
duke@435:       break;
duke@435:     case T_INT:
duke@435:       value->i = receiver->int_field(offset);
duke@435:       break;
duke@435:     case T_LONG:
duke@435:       value->j = receiver->long_field(offset);
duke@435:       break;
duke@435:     case T_OBJECT:
duke@435:     case T_ARRAY:
duke@435:       value->l = (jobject) receiver->obj_field(offset);
duke@435:       break;
duke@435:     default:
duke@435:       return T_ILLEGAL;
duke@435:   }
duke@435:   return field_type;
duke@435: }
duke@435: 
duke@435: 
duke@435: void Reflection::field_set(jvalue* value, fieldDescriptor* fd, Handle receiver, BasicType value_type, TRAPS) {
duke@435:   BasicType field_type = fd->field_type();
duke@435:   if (field_type != value_type) {
duke@435:     widen(value, value_type, field_type, CHECK);
duke@435:   }
duke@435: 
duke@435:   int offset = fd->offset();
duke@435:   switch (field_type) {
duke@435:     case T_BOOLEAN:
duke@435:       receiver->bool_field_put(offset, value->z);
duke@435:       break;
duke@435:     case T_CHAR:
duke@435:       receiver->char_field_put(offset, value->c);
duke@435:       break;
duke@435:     case T_FLOAT:
duke@435:       receiver->float_field_put(offset, value->f);
duke@435:       break;
duke@435:     case T_DOUBLE:
duke@435:       receiver->double_field_put(offset, value->d);
duke@435:       break;
duke@435:     case T_BYTE:
duke@435:       receiver->byte_field_put(offset, value->b);
duke@435:       break;
duke@435:     case T_SHORT:
duke@435:       receiver->short_field_put(offset, value->s);
duke@435:       break;
duke@435:     case T_INT:
duke@435:       receiver->int_field_put(offset, value->i);
duke@435:       break;
duke@435:     case T_LONG:
duke@435:       receiver->long_field_put(offset, value->j);
duke@435:       break;
duke@435:     case T_OBJECT:
duke@435:     case T_ARRAY: {
duke@435:       Handle obj(THREAD, (oop) value->l);
duke@435:       if (obj.not_null()) {
coleenp@2497:         Symbol*  signature = fd->signature();
duke@435:         Handle       loader   (THREAD, fd->loader());
duke@435:         Handle       protect  (THREAD, Klass::cast(fd->field_holder())->protection_domain());
duke@435:         klassOop k = SystemDictionary::resolve_or_fail(signature, loader, protect, true, CHECK); // may block
duke@435:         if (!obj->is_a(k)) {
duke@435:           THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "field type mismatch");
duke@435:         }
duke@435:       }
duke@435:       receiver->obj_field_put(offset, obj());
duke@435:       break;
duke@435:     }
duke@435:     default:
duke@435:       THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "field type mismatch");
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
coleenp@2497: oop Reflection::reflect_field(oop mirror, Symbol* field_name, jint which, TRAPS) {
duke@435:   // Exclude primitive types and array types
duke@435:   if (java_lang_Class::is_primitive(mirror))                             return NULL;
duke@435:   if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) return NULL;
duke@435: 
duke@435:   instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(mirror));
duke@435:   bool local_fields_only = (which == DECLARED);
duke@435: 
duke@435:   // Ensure class is linked
duke@435:   k->link_class(CHECK_NULL);
duke@435: 
duke@435:   // Search class and interface fields
duke@435:   for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) {
duke@435:     if (st.name() == field_name) {
duke@435:       if (local_fields_only || st.access_flags().is_public()) {
duke@435:         return new_field(&st, THREAD);
duke@435:       }
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   return NULL;
duke@435: }
duke@435: 
duke@435: 
duke@435: objArrayOop Reflection::reflect_fields(oop mirror, jint which, TRAPS) {
duke@435:   // Exclude primitive types and array types
duke@435:   if (java_lang_Class::is_primitive(mirror)
duke@435:       || Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) {
coleenp@2497:     Symbol* name = vmSymbols::java_lang_reflect_Field();
duke@435:     klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL);
duke@435:     return oopFactory::new_objArray(klass, 0, CHECK_NULL);  // Return empty array
duke@435:   }
duke@435: 
duke@435:   instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(mirror));
duke@435: 
duke@435:   // Ensure class is linked
duke@435:   k->link_class(CHECK_NULL);
duke@435: 
duke@435:   bool local_fields_only = (which == DECLARED);
duke@435:   int count = 0;
duke@435:   { // Compute fields count for class and interface fields
duke@435:     for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) {
duke@435:       if (local_fields_only || st.access_flags().is_public()) {
duke@435:         count++;
duke@435:       }
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   // Allocate result
coleenp@2497:   Symbol* name = vmSymbols::java_lang_reflect_Field();
duke@435:   klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL);
duke@435:   objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL);
duke@435:   objArrayHandle result (THREAD, r);
duke@435: 
duke@435:   // Fill in results backwards
duke@435:   {
duke@435:     for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) {
duke@435:       if (local_fields_only || st.access_flags().is_public()) {
duke@435:         oop field = new_field(&st, CHECK_NULL);
duke@435:         result->obj_at_put(--count, field);
duke@435:       }
duke@435:     }
duke@435:     assert(count == 0, "just checking");
duke@435:   }
duke@435:   return result();
duke@435: }
duke@435: 
duke@435: 
coleenp@2497: oop Reflection::reflect_method(oop mirror, Symbol* method_name, objArrayHandle types, jint which, TRAPS) {
duke@435:   if (java_lang_Class::is_primitive(mirror))  return NULL;
duke@435:   klassOop klass = java_lang_Class::as_klassOop(mirror);
duke@435:   if (Klass::cast(klass)->oop_is_array() && which == MEMBER_DECLARED)  return NULL;
duke@435: 
duke@435:   if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) {
never@1577:     klass = SystemDictionary::Object_klass();
duke@435:   }
duke@435:   instanceKlassHandle h_k(THREAD, klass);
duke@435: 
duke@435:   // Ensure klass is linked (need not be initialized)
duke@435:   h_k->link_class(CHECK_NULL);
duke@435: 
duke@435:   // For interfaces include static initializers under jdk1.2.x (since classic does that)
duke@435:   bool include_clinit = JDK_Version::is_jdk12x_version() && h_k->is_interface();
duke@435: 
duke@435:   switch (which) {
duke@435:     case MEMBER_PUBLIC:
duke@435:       // First the public non-static methods (works if method holder is an interface)
duke@435:       // Note that we can ignore checks for overridden methods, since we go up the hierarchy.
duke@435:       {
duke@435:         for (MethodStream st(h_k, false, false); !st.eos(); st.next()) {
duke@435:           methodHandle m(THREAD, st.method());
duke@435:           // For interfaces include static initializers since classic does that!
coleenp@2497:           if (method_name == m->name() && (include_clinit || (m->is_public() && !m->is_static() && !m->is_initializer()))) {
coleenp@2497:             Symbol*  signature = m->signature();
duke@435:             bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL);
duke@435:             if (parameter_match) {
duke@435:               return new_method(m, false, false, THREAD);
duke@435:             }
duke@435:           }
duke@435:         }
duke@435:       }
duke@435:       // Then the public static methods (works if method holder is an interface)
duke@435:       {
duke@435:         for (MethodStream st(h_k, false, false); !st.eos(); st.next()) {
duke@435:           methodHandle m(THREAD, st.method());
coleenp@2497:           if (method_name == m->name() && m->is_public() && m->is_static() && !m->is_initializer()) {
coleenp@2497:             Symbol*  signature = m->signature();
duke@435:             bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL);
duke@435:             if (parameter_match) {
duke@435:               return new_method(m, false, false, THREAD);
duke@435:             }
duke@435:           }
duke@435:         }
duke@435:       }
duke@435:       break;
duke@435:     case MEMBER_DECLARED:
duke@435:       // All local methods
duke@435:       {
duke@435:         for (MethodStream st(h_k, true, true); !st.eos(); st.next()) {
duke@435:           methodHandle m(THREAD, st.method());
coleenp@2497:           if (method_name == m->name() && !m->is_initializer()) {
coleenp@2497:             Symbol*  signature = m->signature();
duke@435:             bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL);
duke@435:             if (parameter_match) {
duke@435:               return new_method(m, false, false, THREAD);
duke@435:             }
duke@435:           }
duke@435:         }
duke@435:       }
duke@435:       break;
duke@435:     default:
duke@435:       break;
duke@435:   }
duke@435:   return NULL;
duke@435: }
duke@435: 
duke@435: 
duke@435: objArrayOop Reflection::reflect_methods(oop mirror, jint which, TRAPS) {
duke@435:   // Exclude primitive types
duke@435:   if (java_lang_Class::is_primitive(mirror) ||
duke@435:      (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array() && (which == MEMBER_DECLARED))) {
never@1577:     klassOop klass = SystemDictionary::reflect_Method_klass();
duke@435:     return oopFactory::new_objArray(klass, 0, CHECK_NULL);  // Return empty array
duke@435:   }
duke@435: 
duke@435:   klassOop klass = java_lang_Class::as_klassOop(mirror);
duke@435:   if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) {
never@1577:     klass = SystemDictionary::Object_klass();
duke@435:   }
duke@435:   instanceKlassHandle h_k(THREAD, klass);
duke@435: 
duke@435:   // Ensure klass is linked (need not be initialized)
duke@435:   h_k->link_class(CHECK_NULL);
duke@435: 
duke@435:   // We search the (super)interfaces only if h_k is an interface itself
duke@435:   bool is_interface = h_k->is_interface();
duke@435: 
duke@435:   // For interfaces include static initializers under jdk1.2.x (since classic does that)
duke@435:   bool include_clinit = JDK_Version::is_jdk12x_version() && is_interface;
duke@435: 
duke@435:   switch (which) {
duke@435:     case MEMBER_PUBLIC:
duke@435:       {
duke@435: 
duke@435:         // Count public methods (non-static and static)
duke@435:         int count = 0;
duke@435:         {
duke@435:           for (MethodStream st(h_k, false, false); !st.eos(); st.next()) {
duke@435:             methodOop m = st.method();
duke@435:             // For interfaces include static initializers since classic does that!
duke@435:             if (include_clinit || (!m->is_initializer() && m->is_public() && !m->is_overridden_in(h_k()))) {
duke@435:               count++;
duke@435:             }
duke@435:           }
duke@435:         }
duke@435: 
duke@435:         // Allocate result
never@1577:         klassOop klass = SystemDictionary::reflect_Method_klass();
duke@435:         objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL);
duke@435:         objArrayHandle h_result (THREAD, r);
duke@435: 
duke@435:         // Fill in results backwards
duke@435:         {
duke@435:           // First the non-static public methods
duke@435:           for (MethodStream st(h_k, false, false); !st.eos(); st.next()) {
duke@435:             methodHandle m (THREAD, st.method());
duke@435:             if (!m->is_static() && !m->is_initializer() && m->is_public() && !m->is_overridden_in(h_k())) {
duke@435:               oop method = new_method(m, false, false, CHECK_NULL);
duke@435:               if (method == NULL) {
duke@435:                 return NULL;
duke@435:               } else {
duke@435:                 h_result->obj_at_put(--count, method);
duke@435:               }
duke@435:             }
duke@435:           }
duke@435:         }
duke@435:         {
duke@435:           // Then the static public methods
duke@435:           for (MethodStream st(h_k, false, !is_interface); !st.eos(); st.next()) {
duke@435:             methodHandle m (THREAD, st.method());
duke@435:             if (m->is_static() && (include_clinit || (!m->is_initializer()) && m->is_public() && !m->is_overridden_in(h_k()))) {
duke@435:               oop method = new_method(m, false, false, CHECK_NULL);
duke@435:               if (method == NULL) {
duke@435:                 return NULL;
duke@435:               } else {
duke@435:                 h_result->obj_at_put(--count, method);
duke@435:               }
duke@435:             }
duke@435:           }
duke@435:         }
duke@435: 
duke@435:         assert(count == 0, "just checking");
duke@435:         return h_result();
duke@435:       }
duke@435: 
duke@435:     case MEMBER_DECLARED:
duke@435:       {
duke@435:         // Count all methods
duke@435:         int count = 0;
duke@435:         {
duke@435:           for (MethodStream st(h_k, true, !is_interface); !st.eos(); st.next()) {
duke@435:             methodOop m = st.method();
duke@435:             if (!m->is_initializer()) {
duke@435:               count++;
duke@435:             }
duke@435:           }
duke@435:         }
duke@435:         // Allocate result
never@1577:         klassOop klass = SystemDictionary::reflect_Method_klass();
duke@435:         objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL);
duke@435:         objArrayHandle h_result (THREAD, r);
duke@435: 
duke@435:         // Fill in results backwards
duke@435:         {
duke@435:           for (MethodStream st(h_k, true, true); !st.eos(); st.next()) {
duke@435:             methodHandle m (THREAD, st.method());
duke@435:             if (!m->is_initializer()) {
duke@435:               oop method = new_method(m, false, false, CHECK_NULL);
duke@435:               if (method == NULL) {
duke@435:                 return NULL;
duke@435:               } else {
duke@435:                 h_result->obj_at_put(--count, method);
duke@435:               }
duke@435:             }
duke@435:           }
duke@435:         }
duke@435:         assert(count == 0, "just checking");
duke@435:         return h_result();
duke@435:       }
duke@435:   }
duke@435:   ShouldNotReachHere();
duke@435:   return NULL;
duke@435: }
duke@435: 
duke@435: 
duke@435: oop Reflection::reflect_constructor(oop mirror, objArrayHandle types, jint which, TRAPS) {
duke@435: 
duke@435:   // Exclude primitive, interface and array types
duke@435:   bool prim = java_lang_Class::is_primitive(mirror);
duke@435:   Klass* klass = prim ? NULL : Klass::cast(java_lang_Class::as_klassOop(mirror));
duke@435:   if (prim || klass->is_interface() || klass->oop_is_array()) return NULL;
duke@435: 
duke@435:   // Must be instance klass
duke@435:   instanceKlassHandle h_k(THREAD, java_lang_Class::as_klassOop(mirror));
duke@435: 
duke@435:   // Ensure klass is linked (need not be initialized)
duke@435:   h_k->link_class(CHECK_NULL);
duke@435: 
duke@435:   bool local_only = (which == MEMBER_DECLARED);
duke@435:   for (MethodStream st(h_k, true, true); !st.eos(); st.next()) {
duke@435:     methodHandle m(THREAD, st.method());
duke@435:     if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) {
coleenp@2497:       Symbol*  signature = m->signature();
duke@435:       bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL);
duke@435:       if (parameter_match) {
duke@435:         return new_constructor(m, THREAD);
duke@435:       }
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   return NULL;
duke@435: }
duke@435: 
duke@435: 
duke@435: objArrayOop Reflection::reflect_constructors(oop mirror, jint which, TRAPS) {
duke@435:   // Exclude primitive, interface and array types
duke@435:   bool prim  = java_lang_Class::is_primitive(mirror);
duke@435:   Klass* k = prim ? NULL : Klass::cast(java_lang_Class::as_klassOop(mirror));
duke@435:   if (prim || k->is_interface() || k->oop_is_array()) {
never@1577:     return oopFactory::new_objArray(SystemDictionary::reflect_Constructor_klass(), 0, CHECK_NULL);  // Return empty array
duke@435:   }
duke@435: 
duke@435:   // Must be instanceKlass at this point
duke@435:   instanceKlassHandle h_k(THREAD, java_lang_Class::as_klassOop(mirror));
duke@435: 
duke@435:   // Ensure klass is linked (need not be initialized)
duke@435:   h_k->link_class(CHECK_NULL);
duke@435: 
duke@435:   bool local_only = (which == MEMBER_DECLARED);
duke@435:   int count = 0;
duke@435:   {
duke@435:     for (MethodStream st(h_k, true, true); !st.eos(); st.next()) {
duke@435:       methodOop m = st.method();
duke@435:       if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) {
duke@435:         count++;
duke@435:       }
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   // Allocate result
coleenp@2497:   Symbol* name = vmSymbols::java_lang_reflect_Constructor();
duke@435:   klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL);
duke@435:   objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL);
duke@435:   objArrayHandle h_result (THREAD, r);
duke@435: 
duke@435:   // Fill in results backwards
duke@435:   {
duke@435:     for (MethodStream st(h_k, true, true); !st.eos(); st.next()) {
duke@435:       methodHandle m (THREAD, st.method());
duke@435:       if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) {
duke@435:         oop constr = new_constructor(m, CHECK_NULL);
duke@435:         if (constr == NULL) {
duke@435:           return NULL;
duke@435:         } else {
duke@435:           h_result->obj_at_put(--count, constr);
duke@435:         }
duke@435:       }
duke@435:     }
duke@435:     assert(count == 0, "just checking");
duke@435:   }
duke@435:   return h_result();
duke@435: }
duke@435: 
duke@435: 
duke@435: // This would be nicer if, say, java.lang.reflect.Method was a subclass
duke@435: // of java.lang.reflect.Constructor
duke@435: 
duke@435: oop Reflection::invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS) {
duke@435:   oop mirror             = java_lang_reflect_Method::clazz(method_mirror);
duke@435:   int slot               = java_lang_reflect_Method::slot(method_mirror);
duke@435:   bool override          = java_lang_reflect_Method::override(method_mirror) != 0;
duke@435:   objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Method::parameter_types(method_mirror)));
duke@435: 
duke@435:   oop return_type_mirror = java_lang_reflect_Method::return_type(method_mirror);
duke@435:   BasicType rtype;
duke@435:   if (java_lang_Class::is_primitive(return_type_mirror)) {
duke@435:     rtype = basic_type_mirror_to_basic_type(return_type_mirror, CHECK_NULL);
duke@435:   } else {
duke@435:     rtype = T_OBJECT;
duke@435:   }
duke@435: 
duke@435:   instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(mirror));
dcubed@486:   methodOop m = klass->method_with_idnum(slot);
dcubed@486:   if (m == NULL) {
duke@435:     THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
duke@435:   }
dcubed@486:   methodHandle method(THREAD, m);
duke@435: 
duke@435:   return invoke(klass, method, receiver, override, ptypes, rtype, args, true, THREAD);
duke@435: }
duke@435: 
duke@435: 
duke@435: oop Reflection::invoke_constructor(oop constructor_mirror, objArrayHandle args, TRAPS) {
duke@435:   oop mirror             = java_lang_reflect_Constructor::clazz(constructor_mirror);
duke@435:   int slot               = java_lang_reflect_Constructor::slot(constructor_mirror);
duke@435:   bool override          = java_lang_reflect_Constructor::override(constructor_mirror) != 0;
duke@435:   objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Constructor::parameter_types(constructor_mirror)));
duke@435: 
duke@435:   instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(mirror));
dcubed@486:   methodOop m = klass->method_with_idnum(slot);
dcubed@486:   if (m == NULL) {
duke@435:     THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
duke@435:   }
dcubed@486:   methodHandle method(THREAD, m);
duke@435:   assert(method->name() == vmSymbols::object_initializer_name(), "invalid constructor");
duke@435: 
duke@435:   // Make sure klass gets initialize
duke@435:   klass->initialize(CHECK_NULL);
duke@435: 
duke@435:   // Create new instance (the receiver)
duke@435:   klass->check_valid_for_instantiation(false, CHECK_NULL);
duke@435:   Handle receiver = klass->allocate_instance_handle(CHECK_NULL);
duke@435: 
duke@435:   // Ignore result from call and return receiver
duke@435:   invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL);
duke@435:   return receiver();
duke@435: }
duke@435: 
duke@435: 
duke@435: #endif /* SUPPORT_OLD_REFLECTION */