Mercurial > hg > truffle
annotate src/share/vm/interpreter/linkResolver.cpp @ 13436:9fbabcbb875b
8028741: Interface Method Resolution should skip static and non-public methods in j.l.Object
Summary: Implementation of JDK 8 JVMS 5.4.3.4 specification change to skip static and non-public methods of java.lang.Object for interface method resolution.
Reviewed-by: acorn, coleenp
Contributed-by: lois.foltan@oracle.com
author | hseigel |
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date | Tue, 10 Dec 2013 16:18:26 -0500 |
parents | 769557390c43 |
children | 02f27ecb4f3a 2353011244bd |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
6934 | 26 #include "classfile/defaultMethods.hpp" |
1972 | 27 #include "classfile/systemDictionary.hpp" |
28 #include "classfile/vmSymbols.hpp" | |
29 #include "compiler/compileBroker.hpp" | |
30 #include "gc_interface/collectedHeap.inline.hpp" | |
31 #include "interpreter/bytecode.hpp" | |
32 #include "interpreter/interpreterRuntime.hpp" | |
33 #include "interpreter/linkResolver.hpp" | |
34 #include "memory/resourceArea.hpp" | |
35 #include "memory/universe.inline.hpp" | |
36 #include "oops/instanceKlass.hpp" | |
37 #include "oops/objArrayOop.hpp" | |
38 #include "prims/methodHandles.hpp" | |
39 #include "prims/nativeLookup.hpp" | |
40 #include "runtime/compilationPolicy.hpp" | |
41 #include "runtime/fieldDescriptor.hpp" | |
42 #include "runtime/frame.inline.hpp" | |
43 #include "runtime/handles.inline.hpp" | |
44 #include "runtime/reflection.hpp" | |
45 #include "runtime/signature.hpp" | |
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46 #include "runtime/thread.inline.hpp" |
1972 | 47 #include "runtime/vmThread.hpp" |
0 | 48 |
49 | |
50 //------------------------------------------------------------------------------------------------------------------------ | |
51 // Implementation of CallInfo | |
52 | |
53 | |
54 void CallInfo::set_static(KlassHandle resolved_klass, methodHandle resolved_method, TRAPS) { | |
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55 int vtable_index = Method::nonvirtual_vtable_index; |
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56 set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, CallInfo::direct_call, vtable_index, CHECK); |
0 | 57 } |
58 | |
59 | |
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60 void CallInfo::set_interface(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int itable_index, TRAPS) { |
0 | 61 // This is only called for interface methods. If the resolved_method |
62 // comes from java/lang/Object, it can be the subject of a virtual call, so | |
63 // we should pick the vtable index from the resolved method. | |
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64 // In that case, the caller must call set_virtual instead of set_interface. |
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65 assert(resolved_method->method_holder()->is_interface(), ""); |
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66 assert(itable_index == resolved_method()->itable_index(), ""); |
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67 set_common(resolved_klass, selected_klass, resolved_method, selected_method, CallInfo::itable_call, itable_index, CHECK); |
0 | 68 } |
69 | |
70 void CallInfo::set_virtual(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS) { | |
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71 assert(vtable_index >= 0 || vtable_index == Method::nonvirtual_vtable_index, "valid index"); |
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72 assert(vtable_index < 0 || !resolved_method->has_vtable_index() || vtable_index == resolved_method->vtable_index(), ""); |
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73 CallKind kind = (vtable_index >= 0 && !resolved_method->can_be_statically_bound() ? CallInfo::vtable_call : CallInfo::direct_call); |
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74 set_common(resolved_klass, selected_klass, resolved_method, selected_method, kind, vtable_index, CHECK); |
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75 assert(!resolved_method->is_compiled_lambda_form(), "these must be handled via an invokehandle call"); |
0 | 76 } |
77 | |
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78 void CallInfo::set_handle(methodHandle resolved_method, Handle resolved_appendix, Handle resolved_method_type, TRAPS) { |
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79 if (resolved_method.is_null()) { |
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80 THROW_MSG(vmSymbols::java_lang_InternalError(), "resolved method is null"); |
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81 } |
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82 KlassHandle resolved_klass = SystemDictionary::MethodHandle_klass(); |
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83 assert(resolved_method->intrinsic_id() == vmIntrinsics::_invokeBasic || |
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84 resolved_method->is_compiled_lambda_form(), |
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85 "linkMethod must return one of these"); |
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86 int vtable_index = Method::nonvirtual_vtable_index; |
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87 assert(!resolved_method->has_vtable_index(), ""); |
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88 set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, CallInfo::direct_call, vtable_index, CHECK); |
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89 _resolved_appendix = resolved_appendix; |
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90 _resolved_method_type = resolved_method_type; |
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91 } |
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92 |
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93 void CallInfo::set_common(KlassHandle resolved_klass, |
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94 KlassHandle selected_klass, |
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95 methodHandle resolved_method, |
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96 methodHandle selected_method, |
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97 CallKind kind, |
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98 int index, |
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99 TRAPS) { |
0 | 100 assert(resolved_method->signature() == selected_method->signature(), "signatures must correspond"); |
101 _resolved_klass = resolved_klass; | |
102 _selected_klass = selected_klass; | |
103 _resolved_method = resolved_method; | |
104 _selected_method = selected_method; | |
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105 _call_kind = kind; |
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106 _call_index = index; |
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107 _resolved_appendix = Handle(); |
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108 DEBUG_ONLY(verify()); // verify before making side effects |
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109 |
1783 | 110 if (CompilationPolicy::must_be_compiled(selected_method)) { |
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111 // This path is unusual, mostly used by the '-Xcomp' stress test mode. |
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112 |
1783 | 113 // Note: with several active threads, the must_be_compiled may be true |
114 // while can_be_compiled is false; remove assert | |
115 // assert(CompilationPolicy::can_be_compiled(selected_method), "cannot compile"); | |
0 | 116 if (THREAD->is_Compiler_thread()) { |
117 // don't force compilation, resolve was on behalf of compiler | |
118 return; | |
119 } | |
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120 if (selected_method->method_holder()->is_not_initialized()) { |
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121 // 'is_not_initialized' means not only '!is_initialized', but also that |
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122 // initialization has not been started yet ('!being_initialized') |
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123 // Do not force compilation of methods in uninitialized classes. |
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124 // Note that doing this would throw an assert later, |
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125 // in CompileBroker::compile_method. |
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126 // We sometimes use the link resolver to do reflective lookups |
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127 // even before classes are initialized. |
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128 return; |
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129 } |
0 | 130 CompileBroker::compile_method(selected_method, InvocationEntryBci, |
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131 CompilationPolicy::policy()->initial_compile_level(), |
1783 | 132 methodHandle(), 0, "must_be_compiled", CHECK); |
0 | 133 } |
134 } | |
135 | |
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136 // utility query for unreflecting a method |
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137 CallInfo::CallInfo(Method* resolved_method, Klass* resolved_klass) { |
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138 Klass* resolved_method_holder = resolved_method->method_holder(); |
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139 if (resolved_klass == NULL) { // 2nd argument defaults to holder of 1st |
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140 resolved_klass = resolved_method_holder; |
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141 } |
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142 _resolved_klass = resolved_klass; |
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143 _selected_klass = resolved_klass; |
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144 _resolved_method = resolved_method; |
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145 _selected_method = resolved_method; |
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146 // classify: |
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147 CallKind kind = CallInfo::unknown_kind; |
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148 int index = resolved_method->vtable_index(); |
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149 if (resolved_method->can_be_statically_bound()) { |
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150 kind = CallInfo::direct_call; |
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151 } else if (!resolved_method_holder->is_interface()) { |
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152 // Could be an Object method inherited into an interface, but still a vtable call. |
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153 kind = CallInfo::vtable_call; |
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154 } else if (!resolved_klass->is_interface()) { |
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155 // A default or miranda method. Compute the vtable index. |
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156 ResourceMark rm; |
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157 klassVtable* vt = InstanceKlass::cast(resolved_klass)->vtable(); |
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158 index = LinkResolver::vtable_index_of_interface_method(resolved_klass, |
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159 resolved_method); |
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160 assert(index >= 0 , "we should have valid vtable index at this point"); |
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161 |
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162 kind = CallInfo::vtable_call; |
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163 } else if (resolved_method->has_vtable_index()) { |
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164 // Can occur if an interface redeclares a method of Object. |
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165 |
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166 #ifdef ASSERT |
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167 // Ensure that this is really the case. |
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168 KlassHandle object_klass = SystemDictionary::Object_klass(); |
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169 Method * object_resolved_method = object_klass()->vtable()->method_at(index); |
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170 assert(object_resolved_method->name() == resolved_method->name(), |
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171 err_msg("Object and interface method names should match at vtable index %d, %s != %s", |
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172 index, object_resolved_method->name()->as_C_string(), resolved_method->name()->as_C_string())); |
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173 assert(object_resolved_method->signature() == resolved_method->signature(), |
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174 err_msg("Object and interface method signatures should match at vtable index %d, %s != %s", |
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175 index, object_resolved_method->signature()->as_C_string(), resolved_method->signature()->as_C_string())); |
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176 #endif // ASSERT |
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177 |
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178 kind = CallInfo::vtable_call; |
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179 } else { |
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180 // A regular interface call. |
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181 kind = CallInfo::itable_call; |
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182 index = resolved_method->itable_index(); |
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183 } |
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184 assert(index == Method::nonvirtual_vtable_index || index >= 0, err_msg("bad index %d", index)); |
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185 _call_kind = kind; |
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186 _call_index = index; |
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187 _resolved_appendix = Handle(); |
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188 DEBUG_ONLY(verify()); |
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189 } |
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190 |
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191 #ifdef ASSERT |
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192 void CallInfo::verify() { |
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193 switch (call_kind()) { // the meaning and allowed value of index depends on kind |
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194 case CallInfo::direct_call: |
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195 if (_call_index == Method::nonvirtual_vtable_index) break; |
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196 // else fall through to check vtable index: |
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197 case CallInfo::vtable_call: |
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198 assert(resolved_klass()->verify_vtable_index(_call_index), ""); |
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199 break; |
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200 case CallInfo::itable_call: |
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201 assert(resolved_method()->method_holder()->verify_itable_index(_call_index), ""); |
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202 break; |
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203 case CallInfo::unknown_kind: |
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204 assert(call_kind() != CallInfo::unknown_kind, "CallInfo must be set"); |
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205 break; |
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206 default: |
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207 fatal(err_msg_res("Unexpected call kind %d", call_kind())); |
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208 } |
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209 } |
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210 #endif //ASSERT |
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211 |
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212 |
0 | 213 |
214 //------------------------------------------------------------------------------------------------------------------------ | |
215 // Klass resolution | |
216 | |
217 void LinkResolver::check_klass_accessability(KlassHandle ref_klass, KlassHandle sel_klass, TRAPS) { | |
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218 if (!Reflection::verify_class_access(ref_klass(), |
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219 sel_klass(), |
0 | 220 true)) { |
221 ResourceMark rm(THREAD); | |
222 Exceptions::fthrow( | |
223 THREAD_AND_LOCATION, | |
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224 vmSymbols::java_lang_IllegalAccessError(), |
0 | 225 "tried to access class %s from class %s", |
226 sel_klass->external_name(), | |
227 ref_klass->external_name() | |
228 ); | |
229 return; | |
230 } | |
231 } | |
232 | |
233 void LinkResolver::resolve_klass(KlassHandle& result, constantPoolHandle pool, int index, TRAPS) { | |
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234 Klass* result_oop = pool->klass_ref_at(index, CHECK); |
0 | 235 result = KlassHandle(THREAD, result_oop); |
236 } | |
237 | |
238 //------------------------------------------------------------------------------------------------------------------------ | |
239 // Method resolution | |
240 // | |
241 // According to JVM spec. $5.4.3c & $5.4.3d | |
242 | |
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243 // Look up method in klasses, including static methods |
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244 // Then look up local default methods |
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245 void LinkResolver::lookup_method_in_klasses(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, bool checkpolymorphism, bool in_imethod_resolve, TRAPS) { |
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246 Method* result_oop = klass->uncached_lookup_method(name, signature); |
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247 |
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248 // JDK 8, JVMS 5.4.3.4: Interface method resolution should |
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249 // ignore static and non-public methods of java.lang.Object, |
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250 // like clone, finalize, registerNatives. |
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251 if (in_imethod_resolve && |
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252 result_oop != NULL && |
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253 klass->is_interface() && |
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254 (result_oop->is_static() || !result_oop->is_public()) && |
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255 result_oop->method_holder() == SystemDictionary::Object_klass()) { |
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256 result_oop = NULL; |
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257 } |
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258 |
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259 if (result_oop == NULL) { |
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260 Array<Method*>* default_methods = InstanceKlass::cast(klass())->default_methods(); |
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261 if (default_methods != NULL) { |
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262 result_oop = InstanceKlass::find_method(default_methods, name, signature); |
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263 } |
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264 } |
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265 |
13413 | 266 if (checkpolymorphism && EnableInvokeDynamic && result_oop != NULL) { |
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267 vmIntrinsics::ID iid = result_oop->intrinsic_id(); |
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268 if (MethodHandles::is_signature_polymorphic(iid)) { |
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269 // Do not link directly to these. The VM must produce a synthetic one using lookup_polymorphic_method. |
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270 return; |
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271 } |
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272 } |
0 | 273 result = methodHandle(THREAD, result_oop); |
274 } | |
275 | |
276 // returns first instance method | |
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277 // Looks up method in classes, then looks up local default methods |
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278 void LinkResolver::lookup_instance_method_in_klasses(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
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279 Method* result_oop = klass->uncached_lookup_method(name, signature); |
0 | 280 result = methodHandle(THREAD, result_oop); |
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281 while (!result.is_null() && result->is_static() && result->method_holder()->super() != NULL) { |
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282 KlassHandle super_klass = KlassHandle(THREAD, result->method_holder()->super()); |
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283 result = methodHandle(THREAD, super_klass->uncached_lookup_method(name, signature)); |
0 | 284 } |
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285 |
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286 if (result.is_null()) { |
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287 Array<Method*>* default_methods = InstanceKlass::cast(klass())->default_methods(); |
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288 if (default_methods != NULL) { |
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289 result = methodHandle(InstanceKlass::find_method(default_methods, name, signature)); |
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290 assert(result.is_null() || !result->is_static(), "static defaults not allowed"); |
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291 } |
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292 } |
0 | 293 } |
294 | |
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295 int LinkResolver::vtable_index_of_interface_method(KlassHandle klass, |
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296 methodHandle resolved_method) { |
0 | 297 |
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298 int vtable_index = Method::invalid_vtable_index; |
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299 Symbol* name = resolved_method->name(); |
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300 Symbol* signature = resolved_method->signature(); |
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301 |
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302 // First check in default method array |
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303 if (!resolved_method->is_abstract() && |
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304 (InstanceKlass::cast(klass())->default_methods() != NULL)) { |
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305 int index = InstanceKlass::find_method_index(InstanceKlass::cast(klass())->default_methods(), name, signature); |
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306 if (index >= 0 ) { |
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307 vtable_index = InstanceKlass::cast(klass())->default_vtable_indices()->at(index); |
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308 } |
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309 } |
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310 if (vtable_index == Method::invalid_vtable_index) { |
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311 // get vtable_index for miranda methods |
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312 ResourceMark rm; |
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313 klassVtable *vt = InstanceKlass::cast(klass())->vtable(); |
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314 vtable_index = vt->index_of_miranda(name, signature); |
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315 } |
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316 return vtable_index; |
0 | 317 } |
318 | |
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319 void LinkResolver::lookup_method_in_interfaces(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
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320 InstanceKlass *ik = InstanceKlass::cast(klass()); |
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321 result = methodHandle(THREAD, ik->lookup_method_in_all_interfaces(name, signature)); |
0 | 322 } |
323 | |
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324 void LinkResolver::lookup_polymorphic_method(methodHandle& result, |
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325 KlassHandle klass, Symbol* name, Symbol* full_signature, |
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326 KlassHandle current_klass, |
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327 Handle *appendix_result_or_null, |
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328 Handle *method_type_result, |
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329 TRAPS) { |
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330 vmIntrinsics::ID iid = MethodHandles::signature_polymorphic_name_id(name); |
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331 if (TraceMethodHandles) { |
9082 | 332 ResourceMark rm(THREAD); |
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333 tty->print_cr("lookup_polymorphic_method iid=%s %s.%s%s", |
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334 vmIntrinsics::name_at(iid), klass->external_name(), |
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335 name->as_C_string(), full_signature->as_C_string()); |
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336 } |
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337 if (EnableInvokeDynamic && |
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338 klass() == SystemDictionary::MethodHandle_klass() && |
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339 iid != vmIntrinsics::_none) { |
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340 if (MethodHandles::is_signature_polymorphic_intrinsic(iid)) { |
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341 // Most of these do not need an up-call to Java to resolve, so can be done anywhere. |
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342 // Do not erase last argument type (MemberName) if it is a static linkTo method. |
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343 bool keep_last_arg = MethodHandles::is_signature_polymorphic_static(iid); |
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344 TempNewSymbol basic_signature = |
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345 MethodHandles::lookup_basic_type_signature(full_signature, keep_last_arg, CHECK); |
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346 if (TraceMethodHandles) { |
9082 | 347 ResourceMark rm(THREAD); |
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348 tty->print_cr("lookup_polymorphic_method %s %s => basic %s", |
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349 name->as_C_string(), |
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350 full_signature->as_C_string(), |
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351 basic_signature->as_C_string()); |
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352 } |
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353 result = SystemDictionary::find_method_handle_intrinsic(iid, |
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354 basic_signature, |
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355 CHECK); |
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356 if (result.not_null()) { |
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357 assert(result->is_method_handle_intrinsic(), "MH.invokeBasic or MH.linkTo* intrinsic"); |
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358 assert(result->intrinsic_id() != vmIntrinsics::_invokeGeneric, "wrong place to find this"); |
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359 assert(basic_signature == result->signature(), "predict the result signature"); |
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360 if (TraceMethodHandles) { |
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361 tty->print("lookup_polymorphic_method => intrinsic "); |
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362 result->print_on(tty); |
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363 } |
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364 return; |
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365 } |
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366 } else if (iid == vmIntrinsics::_invokeGeneric |
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367 && !THREAD->is_Compiler_thread() |
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368 && appendix_result_or_null != NULL) { |
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369 // This is a method with type-checking semantics. |
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370 // We will ask Java code to spin an adapter method for it. |
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371 if (!MethodHandles::enabled()) { |
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372 // Make sure the Java part of the runtime has been booted up. |
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373 Klass* natives = SystemDictionary::MethodHandleNatives_klass(); |
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374 if (natives == NULL || InstanceKlass::cast(natives)->is_not_initialized()) { |
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375 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_invoke_MethodHandleNatives(), |
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376 Handle(), |
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377 Handle(), |
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378 true, |
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379 CHECK); |
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380 } |
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381 } |
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382 |
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383 Handle appendix; |
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384 Handle method_type; |
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385 result = SystemDictionary::find_method_handle_invoker(name, |
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386 full_signature, |
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387 current_klass, |
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388 &appendix, |
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389 &method_type, |
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390 CHECK); |
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391 if (TraceMethodHandles) { |
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392 tty->print("lookup_polymorphic_method => (via Java) "); |
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393 result->print_on(tty); |
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394 tty->print(" lookup_polymorphic_method => appendix = "); |
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395 if (appendix.is_null()) tty->print_cr("(none)"); |
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396 else appendix->print_on(tty); |
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397 } |
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398 if (result.not_null()) { |
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399 #ifdef ASSERT |
9082 | 400 ResourceMark rm(THREAD); |
401 | |
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402 TempNewSymbol basic_signature = |
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403 MethodHandles::lookup_basic_type_signature(full_signature, CHECK); |
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404 int actual_size_of_params = result->size_of_parameters(); |
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405 int expected_size_of_params = ArgumentSizeComputer(basic_signature).size(); |
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406 // +1 for MethodHandle.this, +1 for trailing MethodType |
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407 if (!MethodHandles::is_signature_polymorphic_static(iid)) expected_size_of_params += 1; |
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408 if (appendix.not_null()) expected_size_of_params += 1; |
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409 if (actual_size_of_params != expected_size_of_params) { |
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410 tty->print_cr("*** basic_signature=%s", basic_signature->as_C_string()); |
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411 tty->print_cr("*** result for %s: ", vmIntrinsics::name_at(iid)); |
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412 result->print(); |
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413 } |
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414 assert(actual_size_of_params == expected_size_of_params, |
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415 err_msg("%d != %d", actual_size_of_params, expected_size_of_params)); |
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416 #endif //ASSERT |
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417 |
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418 assert(appendix_result_or_null != NULL, ""); |
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419 (*appendix_result_or_null) = appendix; |
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420 (*method_type_result) = method_type; |
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421 return; |
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422 } |
710 | 423 } |
424 } | |
425 } | |
426 | |
0 | 427 void LinkResolver::check_method_accessability(KlassHandle ref_klass, |
428 KlassHandle resolved_klass, | |
429 KlassHandle sel_klass, | |
430 methodHandle sel_method, | |
431 TRAPS) { | |
432 | |
433 AccessFlags flags = sel_method->access_flags(); | |
434 | |
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435 // Special case: arrays always override "clone". JVMS 2.15. |
0 | 436 // If the resolved klass is an array class, and the declaring class |
437 // is java.lang.Object and the method is "clone", set the flags | |
438 // to public. | |
439 // | |
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440 // We'll check for the method name first, as that's most likely |
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441 // to be false (so we'll short-circuit out of these tests). |
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442 if (sel_method->name() == vmSymbols::clone_name() && |
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443 sel_klass() == SystemDictionary::Object_klass() && |
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444 resolved_klass->oop_is_array()) { |
0 | 445 // We need to change "protected" to "public". |
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446 assert(flags.is_protected(), "clone not protected?"); |
0 | 447 jint new_flags = flags.as_int(); |
448 new_flags = new_flags & (~JVM_ACC_PROTECTED); | |
449 new_flags = new_flags | JVM_ACC_PUBLIC; | |
450 flags.set_flags(new_flags); | |
451 } | |
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452 // assert(extra_arg_result_or_null != NULL, "must be able to return extra argument"); |
0 | 453 |
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454 if (!Reflection::verify_field_access(ref_klass(), |
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455 resolved_klass(), |
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456 sel_klass(), |
0 | 457 flags, |
458 true)) { | |
459 ResourceMark rm(THREAD); | |
460 Exceptions::fthrow( | |
461 THREAD_AND_LOCATION, | |
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462 vmSymbols::java_lang_IllegalAccessError(), |
0 | 463 "tried to access method %s.%s%s from class %s", |
464 sel_klass->external_name(), | |
465 sel_method->name()->as_C_string(), | |
466 sel_method->signature()->as_C_string(), | |
467 ref_klass->external_name() | |
468 ); | |
469 return; | |
470 } | |
471 } | |
472 | |
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473 void LinkResolver::resolve_method_statically(methodHandle& resolved_method, KlassHandle& resolved_klass, |
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474 Bytecodes::Code code, constantPoolHandle pool, int index, TRAPS) { |
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475 // This method is used only |
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476 // (1) in C2 from InlineTree::ok_to_inline (via ciMethod::check_call), |
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477 // and |
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478 // (2) in Bytecode_invoke::static_target |
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479 // It appears to fail when applied to an invokeinterface call site. |
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480 // FIXME: Remove this method and ciMethod::check_call; refactor to use the other LinkResolver entry points. |
0 | 481 // resolve klass |
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482 if (code == Bytecodes::_invokedynamic) { |
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483 resolved_klass = SystemDictionary::MethodHandle_klass(); |
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484 Symbol* method_name = vmSymbols::invoke_name(); |
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485 Symbol* method_signature = pool->signature_ref_at(index); |
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486 KlassHandle current_klass(THREAD, pool->pool_holder()); |
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487 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, false, CHECK); |
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488 return; |
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489 } |
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490 |
0 | 491 resolve_klass(resolved_klass, pool, index, CHECK); |
492 | |
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493 Symbol* method_name = pool->name_ref_at(index); |
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494 Symbol* method_signature = pool->signature_ref_at(index); |
0 | 495 KlassHandle current_klass(THREAD, pool->pool_holder()); |
496 | |
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497 if (pool->has_preresolution() |
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498 || (resolved_klass() == SystemDictionary::MethodHandle_klass() && |
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499 MethodHandles::is_signature_polymorphic_name(resolved_klass(), method_name))) { |
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500 Method* result_oop = ConstantPool::method_at_if_loaded(pool, index); |
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501 if (result_oop != NULL) { |
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502 resolved_method = methodHandle(THREAD, result_oop); |
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503 return; |
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504 } |
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505 } |
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506 |
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507 if (code == Bytecodes::_invokeinterface) { |
13413 | 508 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); |
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509 } else if (code == Bytecodes::_invokevirtual) { |
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510 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); |
13413 | 511 } else if (!resolved_klass->is_interface()) { |
512 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, false, CHECK); | |
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513 } else { |
13413 | 514 bool nostatics = (code == Bytecodes::_invokestatic) ? false : true; |
515 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, nostatics, CHECK); | |
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516 } |
0 | 517 } |
518 | |
519 void LinkResolver::resolve_method(methodHandle& resolved_method, KlassHandle resolved_klass, | |
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520 Symbol* method_name, Symbol* method_signature, |
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521 KlassHandle current_klass, bool check_access, |
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522 bool require_methodref, TRAPS) { |
0 | 523 |
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524 Handle nested_exception; |
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525 |
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526 // 1. check if methodref required, that resolved_klass is not interfacemethodref |
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527 if (require_methodref && resolved_klass->is_interface()) { |
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528 ResourceMark rm(THREAD); |
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529 char buf[200]; |
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530 jio_snprintf(buf, sizeof(buf), "Found interface %s, but class was expected", |
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531 resolved_klass()->external_name()); |
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532 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
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533 } |
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534 |
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535 // 2. lookup method in resolved klass and its super klasses |
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536 lookup_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, true, false, CHECK); |
0 | 537 |
538 if (resolved_method.is_null()) { // not found in the class hierarchy | |
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539 // 3. lookup method in all the interfaces implemented by the resolved klass |
0 | 540 lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK); |
541 | |
542 if (resolved_method.is_null()) { | |
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543 // JSR 292: see if this is an implicitly generated method MethodHandle.linkToVirtual(*...), etc |
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544 lookup_polymorphic_method(resolved_method, resolved_klass, method_name, method_signature, |
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545 current_klass, (Handle*)NULL, (Handle*)NULL, THREAD); |
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546 if (HAS_PENDING_EXCEPTION) { |
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547 nested_exception = Handle(THREAD, PENDING_EXCEPTION); |
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548 CLEAR_PENDING_EXCEPTION; |
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549 } |
710 | 550 } |
551 | |
552 if (resolved_method.is_null()) { | |
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553 // 4. method lookup failed |
0 | 554 ResourceMark rm(THREAD); |
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555 THROW_MSG_CAUSE(vmSymbols::java_lang_NoSuchMethodError(), |
6983 | 556 Method::name_and_sig_as_C_string(resolved_klass(), |
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557 method_name, |
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558 method_signature), |
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559 nested_exception); |
0 | 560 } |
561 } | |
562 | |
563 // 5. check if method is concrete | |
564 if (resolved_method->is_abstract() && !resolved_klass->is_abstract()) { | |
565 ResourceMark rm(THREAD); | |
566 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 567 Method::name_and_sig_as_C_string(resolved_klass(), |
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568 method_name, |
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569 method_signature)); |
0 | 570 } |
571 | |
572 // 6. access checks, access checking may be turned off when calling from within the VM. | |
573 if (check_access) { | |
574 assert(current_klass.not_null() , "current_klass should not be null"); | |
575 | |
576 // check if method can be accessed by the referring class | |
577 check_method_accessability(current_klass, | |
578 resolved_klass, | |
579 KlassHandle(THREAD, resolved_method->method_holder()), | |
580 resolved_method, | |
581 CHECK); | |
582 | |
583 // check loader constraints | |
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584 Handle loader (THREAD, InstanceKlass::cast(current_klass())->class_loader()); |
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585 Handle class_loader (THREAD, resolved_method->method_holder()->class_loader()); |
0 | 586 { |
587 ResourceMark rm(THREAD); | |
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588 Symbol* failed_type_symbol = |
0 | 589 SystemDictionary::check_signature_loaders(method_signature, loader, |
590 class_loader, true, CHECK); | |
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591 if (failed_type_symbol != NULL) { |
0 | 592 const char* msg = "loader constraint violation: when resolving method" |
593 " \"%s\" the class loader (instance of %s) of the current class, %s," | |
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594 " and the class loader (instance of %s) for the method's defining class, %s, have" |
0 | 595 " different Class objects for the type %s used in the signature"; |
6983 | 596 char* sig = Method::name_and_sig_as_C_string(resolved_klass(),method_name,method_signature); |
0 | 597 const char* loader1 = SystemDictionary::loader_name(loader()); |
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598 char* current = InstanceKlass::cast(current_klass())->name()->as_C_string(); |
0 | 599 const char* loader2 = SystemDictionary::loader_name(class_loader()); |
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600 char* target = InstanceKlass::cast(resolved_method->method_holder()) |
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601 ->name()->as_C_string(); |
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602 char* failed_type_name = failed_type_symbol->as_C_string(); |
0 | 603 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) + |
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604 strlen(current) + strlen(loader2) + strlen(target) + |
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605 strlen(failed_type_name) + 1; |
0 | 606 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); |
607 jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2, | |
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608 target, failed_type_name); |
0 | 609 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); |
610 } | |
611 } | |
612 } | |
613 } | |
614 | |
615 void LinkResolver::resolve_interface_method(methodHandle& resolved_method, | |
616 KlassHandle resolved_klass, | |
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617 Symbol* method_name, |
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618 Symbol* method_signature, |
0 | 619 KlassHandle current_klass, |
13413 | 620 bool check_access, |
621 bool nostatics, TRAPS) { | |
0 | 622 |
623 // check if klass is interface | |
624 if (!resolved_klass->is_interface()) { | |
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625 ResourceMark rm(THREAD); |
0 | 626 char buf[200]; |
6983 | 627 jio_snprintf(buf, sizeof(buf), "Found class %s, but interface was expected", resolved_klass()->external_name()); |
0 | 628 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
629 } | |
630 | |
631 // lookup method in this interface or its super, java.lang.Object | |
13413 | 632 // JDK8: also look for static methods |
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633 lookup_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, false, true, CHECK); |
0 | 634 |
635 if (resolved_method.is_null()) { | |
636 // lookup method in all the super-interfaces | |
637 lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK); | |
638 if (resolved_method.is_null()) { | |
639 // no method found | |
640 ResourceMark rm(THREAD); | |
641 THROW_MSG(vmSymbols::java_lang_NoSuchMethodError(), | |
6983 | 642 Method::name_and_sig_as_C_string(resolved_klass(), |
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643 method_name, |
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644 method_signature)); |
0 | 645 } |
646 } | |
647 | |
13413 | 648 if (nostatics && resolved_method->is_static()) { |
649 ResourceMark rm(THREAD); | |
650 char buf[200]; | |
651 jio_snprintf(buf, sizeof(buf), "Expected instance not static method %s", Method::name_and_sig_as_C_string(resolved_klass(), | |
652 resolved_method->name(), | |
653 resolved_method->signature())); | |
654 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
655 } | |
656 | |
657 | |
0 | 658 if (check_access) { |
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659 // JDK8 adds non-public interface methods, and accessability check requirement |
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660 assert(current_klass.not_null() , "current_klass should not be null"); |
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661 |
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662 // check if method can be accessed by the referring class |
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663 check_method_accessability(current_klass, |
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664 resolved_klass, |
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665 KlassHandle(THREAD, resolved_method->method_holder()), |
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666 resolved_method, |
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667 CHECK); |
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668 |
0 | 669 HandleMark hm(THREAD); |
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670 Handle loader (THREAD, InstanceKlass::cast(current_klass())->class_loader()); |
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671 Handle class_loader (THREAD, resolved_method->method_holder()->class_loader()); |
0 | 672 { |
673 ResourceMark rm(THREAD); | |
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674 Symbol* failed_type_symbol = |
0 | 675 SystemDictionary::check_signature_loaders(method_signature, loader, |
676 class_loader, true, CHECK); | |
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677 if (failed_type_symbol != NULL) { |
0 | 678 const char* msg = "loader constraint violation: when resolving " |
679 "interface method \"%s\" the class loader (instance of %s) of the " | |
680 "current class, %s, and the class loader (instance of %s) for " | |
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681 "the method's defining class, %s, have different Class objects for the type %s " |
0 | 682 "used in the signature"; |
6983 | 683 char* sig = Method::name_and_sig_as_C_string(resolved_klass(),method_name,method_signature); |
0 | 684 const char* loader1 = SystemDictionary::loader_name(loader()); |
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685 char* current = InstanceKlass::cast(current_klass())->name()->as_C_string(); |
0 | 686 const char* loader2 = SystemDictionary::loader_name(class_loader()); |
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687 char* target = InstanceKlass::cast(resolved_method->method_holder()) |
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688 ->name()->as_C_string(); |
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689 char* failed_type_name = failed_type_symbol->as_C_string(); |
0 | 690 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) + |
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691 strlen(current) + strlen(loader2) + strlen(target) + |
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692 strlen(failed_type_name) + 1; |
0 | 693 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); |
694 jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2, | |
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695 target, failed_type_name); |
0 | 696 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); |
697 } | |
698 } | |
699 } | |
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700 |
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701 if (TraceItables && Verbose) { |
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702 ResourceMark rm(THREAD); |
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703 tty->print("invokeinterface resolved method: caller-class:%s, compile-time-class:%s, method:%s, method_holder:%s, access_flags: ", |
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704 (current_klass.is_null() ? "<NULL>" : current_klass->internal_name()), |
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705 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
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706 Method::name_and_sig_as_C_string(resolved_klass(), |
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707 resolved_method->name(), |
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708 resolved_method->signature()), |
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709 resolved_method->method_holder()->internal_name() |
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710 ); |
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711 resolved_method->access_flags().print_on(tty); |
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712 if (resolved_method->is_default_method()) { |
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713 tty->print("default "); |
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714 } |
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715 if (resolved_method->is_overpass()) { |
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716 tty->print("overpass"); |
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717 } |
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718 tty->cr(); |
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719 } |
0 | 720 } |
721 | |
722 //------------------------------------------------------------------------------------------------------------------------ | |
723 // Field resolution | |
724 | |
725 void LinkResolver::check_field_accessability(KlassHandle ref_klass, | |
726 KlassHandle resolved_klass, | |
727 KlassHandle sel_klass, | |
728 fieldDescriptor& fd, | |
729 TRAPS) { | |
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730 if (!Reflection::verify_field_access(ref_klass(), |
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731 resolved_klass(), |
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732 sel_klass(), |
0 | 733 fd.access_flags(), |
734 true)) { | |
735 ResourceMark rm(THREAD); | |
736 Exceptions::fthrow( | |
737 THREAD_AND_LOCATION, | |
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738 vmSymbols::java_lang_IllegalAccessError(), |
0 | 739 "tried to access field %s.%s from class %s", |
740 sel_klass->external_name(), | |
741 fd.name()->as_C_string(), | |
742 ref_klass->external_name() | |
743 ); | |
744 return; | |
745 } | |
746 } | |
747 | |
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748 void LinkResolver::resolve_field_access(fieldDescriptor& result, constantPoolHandle pool, int index, Bytecodes::Code byte, TRAPS) { |
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749 // Load these early in case the resolve of the containing klass fails |
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750 Symbol* field = pool->name_ref_at(index); |
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751 Symbol* sig = pool->signature_ref_at(index); |
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752 |
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753 // resolve specified klass |
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754 KlassHandle resolved_klass; |
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755 resolve_klass(resolved_klass, pool, index, CHECK); |
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756 |
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757 KlassHandle current_klass(THREAD, pool->pool_holder()); |
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758 resolve_field(result, resolved_klass, field, sig, current_klass, byte, true, true, CHECK); |
0 | 759 } |
760 | |
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761 void LinkResolver::resolve_field(fieldDescriptor& fd, KlassHandle resolved_klass, Symbol* field, Symbol* sig, |
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762 KlassHandle current_klass, Bytecodes::Code byte, bool check_access, bool initialize_class, |
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763 TRAPS) { |
0 | 764 assert(byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic || |
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765 byte == Bytecodes::_getfield || byte == Bytecodes::_putfield || |
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766 (byte == Bytecodes::_nop && !check_access), "bad field access bytecode"); |
0 | 767 |
768 bool is_static = (byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic); | |
769 bool is_put = (byte == Bytecodes::_putfield || byte == Bytecodes::_putstatic); | |
770 | |
771 // Check if there's a resolved klass containing the field | |
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772 if (resolved_klass.is_null()) { |
0 | 773 ResourceMark rm(THREAD); |
774 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string()); | |
775 } | |
776 | |
777 // Resolve instance field | |
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778 KlassHandle sel_klass(THREAD, InstanceKlass::cast(resolved_klass())->find_field(field, sig, &fd)); |
0 | 779 // check if field exists; i.e., if a klass containing the field def has been selected |
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780 if (sel_klass.is_null()) { |
0 | 781 ResourceMark rm(THREAD); |
782 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string()); | |
783 } | |
784 | |
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785 if (!check_access) |
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786 // Access checking may be turned off when calling from within the VM. |
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787 return; |
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788 |
0 | 789 // check access |
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790 check_field_accessability(current_klass, resolved_klass, sel_klass, fd, CHECK); |
0 | 791 |
792 // check for errors | |
793 if (is_static != fd.is_static()) { | |
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794 ResourceMark rm(THREAD); |
0 | 795 char msg[200]; |
6983 | 796 jio_snprintf(msg, sizeof(msg), "Expected %s field %s.%s", is_static ? "static" : "non-static", resolved_klass()->external_name(), fd.name()->as_C_string()); |
0 | 797 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), msg); |
798 } | |
799 | |
800 // Final fields can only be accessed from its own class. | |
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801 if (is_put && fd.access_flags().is_final() && sel_klass() != current_klass()) { |
0 | 802 THROW(vmSymbols::java_lang_IllegalAccessError()); |
803 } | |
804 | |
805 // initialize resolved_klass if necessary | |
806 // note 1: the klass which declared the field must be initialized (i.e, sel_klass) | |
807 // according to the newest JVM spec (5.5, p.170) - was bug (gri 7/28/99) | |
808 // | |
809 // note 2: we don't want to force initialization if we are just checking | |
810 // if the field access is legal; e.g., during compilation | |
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811 if (is_static && initialize_class) { |
0 | 812 sel_klass->initialize(CHECK); |
813 } | |
814 | |
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815 if (sel_klass() != current_klass()) { |
0 | 816 HandleMark hm(THREAD); |
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817 Handle ref_loader (THREAD, InstanceKlass::cast(current_klass())->class_loader()); |
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818 Handle sel_loader (THREAD, InstanceKlass::cast(sel_klass())->class_loader()); |
0 | 819 { |
820 ResourceMark rm(THREAD); | |
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821 Symbol* failed_type_symbol = |
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822 SystemDictionary::check_signature_loaders(sig, |
0 | 823 ref_loader, sel_loader, |
824 false, | |
825 CHECK); | |
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826 if (failed_type_symbol != NULL) { |
0 | 827 const char* msg = "loader constraint violation: when resolving field" |
828 " \"%s\" the class loader (instance of %s) of the referring class, " | |
829 "%s, and the class loader (instance of %s) for the field's resolved " | |
830 "type, %s, have different Class objects for that type"; | |
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831 char* field_name = field->as_C_string(); |
0 | 832 const char* loader1 = SystemDictionary::loader_name(ref_loader()); |
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833 char* sel = InstanceKlass::cast(sel_klass())->name()->as_C_string(); |
0 | 834 const char* loader2 = SystemDictionary::loader_name(sel_loader()); |
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835 char* failed_type_name = failed_type_symbol->as_C_string(); |
0 | 836 size_t buflen = strlen(msg) + strlen(field_name) + strlen(loader1) + |
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837 strlen(sel) + strlen(loader2) + strlen(failed_type_name) + 1; |
0 | 838 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); |
839 jio_snprintf(buf, buflen, msg, field_name, loader1, sel, loader2, | |
840 failed_type_name); | |
841 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); | |
842 } | |
843 } | |
844 } | |
845 | |
846 // return information. note that the klass is set to the actual klass containing the | |
847 // field, otherwise access of static fields in superclasses will not work. | |
848 } | |
849 | |
850 | |
851 //------------------------------------------------------------------------------------------------------------------------ | |
852 // Invoke resolution | |
853 // | |
854 // Naming conventions: | |
855 // | |
856 // resolved_method the specified method (i.e., static receiver specified via constant pool index) | |
857 // sel_method the selected method (selected via run-time lookup; e.g., based on dynamic receiver class) | |
858 // resolved_klass the specified klass (i.e., specified via constant pool index) | |
859 // recv_klass the receiver klass | |
860 | |
861 | |
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862 void LinkResolver::resolve_static_call(CallInfo& result, KlassHandle& resolved_klass, Symbol* method_name, |
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863 Symbol* method_signature, KlassHandle current_klass, |
0 | 864 bool check_access, bool initialize_class, TRAPS) { |
865 methodHandle resolved_method; | |
866 linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
6983 | 867 resolved_klass = KlassHandle(THREAD, resolved_method->method_holder()); |
0 | 868 |
869 // Initialize klass (this should only happen if everything is ok) | |
870 if (initialize_class && resolved_klass->should_be_initialized()) { | |
871 resolved_klass->initialize(CHECK); | |
872 linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
873 } | |
874 | |
875 // setup result | |
876 result.set_static(resolved_klass, resolved_method, CHECK); | |
877 } | |
878 | |
879 // throws linktime exceptions | |
880 void LinkResolver::linktime_resolve_static_method(methodHandle& resolved_method, KlassHandle resolved_klass, | |
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881 Symbol* method_name, Symbol* method_signature, |
0 | 882 KlassHandle current_klass, bool check_access, TRAPS) { |
883 | |
13413 | 884 if (!resolved_klass->is_interface()) { |
885 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, false, CHECK); | |
886 } else { | |
887 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, false, CHECK); | |
888 } | |
0 | 889 assert(resolved_method->name() != vmSymbols::class_initializer_name(), "should have been checked in verifier"); |
890 | |
891 // check if static | |
892 if (!resolved_method->is_static()) { | |
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893 ResourceMark rm(THREAD); |
0 | 894 char buf[200]; |
6983 | 895 jio_snprintf(buf, sizeof(buf), "Expected static method %s", Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 896 resolved_method->name(), |
897 resolved_method->signature())); | |
898 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
899 } | |
900 } | |
901 | |
902 | |
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903 void LinkResolver::resolve_special_call(CallInfo& result, KlassHandle resolved_klass, Symbol* method_name, |
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904 Symbol* method_signature, KlassHandle current_klass, bool check_access, TRAPS) { |
0 | 905 methodHandle resolved_method; |
906 linktime_resolve_special_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
907 runtime_resolve_special_method(result, resolved_method, resolved_klass, current_klass, check_access, CHECK); | |
908 } | |
909 | |
910 // throws linktime exceptions | |
911 void LinkResolver::linktime_resolve_special_method(methodHandle& resolved_method, KlassHandle resolved_klass, | |
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912 Symbol* method_name, Symbol* method_signature, |
0 | 913 KlassHandle current_klass, bool check_access, TRAPS) { |
914 | |
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915 // Invokespecial is called for multiple special reasons: |
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916 // <init> |
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917 // local private method invocation, for classes and interfaces |
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918 // superclass.method, which can also resolve to a default method |
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919 // and the selected method is recalculated relative to the direct superclass |
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920 // superinterface.method, which explicitly does not check shadowing |
6934 | 921 |
13413 | 922 if (!resolved_klass->is_interface()) { |
923 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, false, CHECK); | |
924 } else { | |
925 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, true, CHECK); | |
926 } | |
0 | 927 |
928 // check if method name is <init>, that it is found in same klass as static type | |
929 if (resolved_method->name() == vmSymbols::object_initializer_name() && | |
930 resolved_method->method_holder() != resolved_klass()) { | |
931 ResourceMark rm(THREAD); | |
932 Exceptions::fthrow( | |
933 THREAD_AND_LOCATION, | |
2177
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934 vmSymbols::java_lang_NoSuchMethodError(), |
0 | 935 "%s: method %s%s not found", |
936 resolved_klass->external_name(), | |
937 resolved_method->name()->as_C_string(), | |
938 resolved_method->signature()->as_C_string() | |
939 ); | |
940 return; | |
941 } | |
942 | |
13401
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943 // check if invokespecial's interface method reference is in an indirect superinterface |
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944 if (!current_klass.is_null() && resolved_klass->is_interface()) { |
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945 Klass *klass_to_check = !InstanceKlass::cast(current_klass())->is_anonymous() ? |
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946 current_klass() : |
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947 InstanceKlass::cast(current_klass())->host_klass(); |
13433
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948 // As of the fix for 4486457 we disable verification for all of the |
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949 // dynamically-generated bytecodes associated with the 1.4 |
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8029415: java/lang/reflect/Method/invoke/TestPrivateInterfaceMethodReflect.java fails on all platforms with hs25-b61
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950 // reflection implementation, not just those associated with |
769557390c43
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951 // sun/reflect/SerializationConstructorAccessor. |
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952 bool is_reflect = JDK_Version::is_gte_jdk14x_version() && |
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953 UseNewReflection && |
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954 klass_to_check->is_subclass_of( |
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8029415: java/lang/reflect/Method/invoke/TestPrivateInterfaceMethodReflect.java fails on all platforms with hs25-b61
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955 SystemDictionary::reflect_MagicAccessorImpl_klass()); |
13401
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|
956 |
13433
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957 if (!is_reflect && |
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958 !InstanceKlass::cast(klass_to_check)->is_same_or_direct_interface(resolved_klass())) { |
13401
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959 ResourceMark rm(THREAD); |
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960 char buf[200]; |
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961 jio_snprintf(buf, sizeof(buf), |
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962 "Interface method reference: %s, is in an indirect superinterface of %s", |
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963 Method::name_and_sig_as_C_string(resolved_klass(), |
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964 resolved_method->name(), |
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965 resolved_method->signature()), |
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966 current_klass->external_name()); |
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967 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
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968 } |
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969 } |
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970 |
0 | 971 // check if not static |
972 if (resolved_method->is_static()) { | |
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973 ResourceMark rm(THREAD); |
0 | 974 char buf[200]; |
975 jio_snprintf(buf, sizeof(buf), | |
976 "Expecting non-static method %s", | |
6983 | 977 Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 978 resolved_method->name(), |
979 resolved_method->signature())); | |
980 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
981 } | |
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982 |
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983 if (TraceItables && Verbose) { |
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984 ResourceMark rm(THREAD); |
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985 tty->print("invokespecial resolved method: caller-class:%s, compile-time-class:%s, method:%s, method_holder:%s, access_flags: ", |
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986 (current_klass.is_null() ? "<NULL>" : current_klass->internal_name()), |
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987 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
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988 Method::name_and_sig_as_C_string(resolved_klass(), |
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989 resolved_method->name(), |
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990 resolved_method->signature()), |
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991 resolved_method->method_holder()->internal_name() |
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992 ); |
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993 resolved_method->access_flags().print_on(tty); |
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994 if (resolved_method->is_default_method()) { |
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995 tty->print("default "); |
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996 } |
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997 if (resolved_method->is_overpass()) { |
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998 tty->print("overpass"); |
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999 } |
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1000 tty->cr(); |
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1001 } |
0 | 1002 } |
1003 | |
1004 // throws runtime exceptions | |
1005 void LinkResolver::runtime_resolve_special_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass, | |
1006 KlassHandle current_klass, bool check_access, TRAPS) { | |
1007 | |
1008 // resolved method is selected method unless we have an old-style lookup | |
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1009 // for a superclass method |
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1010 // Invokespecial for a superinterface, resolved method is selected method, |
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1011 // no checks for shadowing |
0 | 1012 methodHandle sel_method(THREAD, resolved_method()); |
1013 | |
1014 // check if this is an old-style super call and do a new lookup if so | |
1015 { KlassHandle method_klass = KlassHandle(THREAD, | |
1016 resolved_method->method_holder()); | |
1017 | |
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1018 if (check_access && |
0 | 1019 // a) check if ACC_SUPER flag is set for the current class |
8702 | 1020 (current_klass->is_super() || !AllowNonVirtualCalls) && |
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1021 // b) check if the class of the resolved_klass is a superclass |
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1022 // (not supertype in order to exclude interface classes) of the current class. |
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1023 // This check is not performed for super.invoke for interface methods |
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1024 // in super interfaces. |
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1025 current_klass->is_subclass_of(resolved_klass()) && |
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1026 current_klass() != resolved_klass() && |
0 | 1027 // c) check if the method is not <init> |
1028 resolved_method->name() != vmSymbols::object_initializer_name()) { | |
1029 // Lookup super method | |
1030 KlassHandle super_klass(THREAD, current_klass->super()); | |
1031 lookup_instance_method_in_klasses(sel_method, super_klass, | |
2177
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1032 resolved_method->name(), |
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1033 resolved_method->signature(), CHECK); |
0 | 1034 // check if found |
1035 if (sel_method.is_null()) { | |
1036 ResourceMark rm(THREAD); | |
1037 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1038 Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1039 resolved_method->name(), |
1040 resolved_method->signature())); | |
1041 } | |
1042 } | |
1043 } | |
1044 | |
1045 // check if not static | |
1046 if (sel_method->is_static()) { | |
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1047 ResourceMark rm(THREAD); |
0 | 1048 char buf[200]; |
6983 | 1049 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1050 resolved_method->name(), |
1051 resolved_method->signature())); | |
1052 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
1053 } | |
1054 | |
1055 // check if abstract | |
1056 if (sel_method->is_abstract()) { | |
1057 ResourceMark rm(THREAD); | |
1058 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1059 Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1060 sel_method->name(), |
1061 sel_method->signature())); | |
1062 } | |
1063 | |
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1064 if (TraceItables && Verbose) { |
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1065 ResourceMark rm(THREAD); |
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1066 tty->print("invokespecial selected method: resolved-class:%s, method:%s, method_holder:%s, access_flags: ", |
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1067 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
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1068 Method::name_and_sig_as_C_string(resolved_klass(), |
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1069 sel_method->name(), |
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1070 sel_method->signature()), |
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1071 sel_method->method_holder()->internal_name() |
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1072 ); |
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1073 sel_method->access_flags().print_on(tty); |
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1074 if (sel_method->is_default_method()) { |
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1075 tty->print("default "); |
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1076 } |
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1077 if (sel_method->is_overpass()) { |
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1078 tty->print("overpass"); |
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1079 } |
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1080 tty->cr(); |
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1081 } |
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1082 |
0 | 1083 // setup result |
1084 result.set_static(resolved_klass, sel_method, CHECK); | |
1085 } | |
1086 | |
1087 void LinkResolver::resolve_virtual_call(CallInfo& result, Handle recv, KlassHandle receiver_klass, KlassHandle resolved_klass, | |
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1088 Symbol* method_name, Symbol* method_signature, KlassHandle current_klass, |
0 | 1089 bool check_access, bool check_null_and_abstract, TRAPS) { |
1090 methodHandle resolved_method; | |
1091 linktime_resolve_virtual_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
1092 runtime_resolve_virtual_method(result, resolved_method, resolved_klass, recv, receiver_klass, check_null_and_abstract, CHECK); | |
1093 } | |
1094 | |
1095 // throws linktime exceptions | |
1096 void LinkResolver::linktime_resolve_virtual_method(methodHandle &resolved_method, KlassHandle resolved_klass, | |
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1097 Symbol* method_name, Symbol* method_signature, |
0 | 1098 KlassHandle current_klass, bool check_access, TRAPS) { |
1099 // normal method resolution | |
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1100 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, true, CHECK); |
0 | 1101 |
1102 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier"); | |
1103 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier"); | |
1104 | |
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1105 // check if private interface method |
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1106 if (resolved_klass->is_interface() && resolved_method->is_private()) { |
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1107 ResourceMark rm(THREAD); |
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1108 char buf[200]; |
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1109 jio_snprintf(buf, sizeof(buf), "private interface method requires invokespecial, not invokevirtual: method %s, caller-class:%s", |
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1110 Method::name_and_sig_as_C_string(resolved_klass(), |
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1111 resolved_method->name(), |
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1112 resolved_method->signature()), |
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1113 (current_klass.is_null() ? "<NULL>" : current_klass->internal_name())); |
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1114 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
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1115 } |
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1116 |
0 | 1117 // check if not static |
1118 if (resolved_method->is_static()) { | |
3324
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1119 ResourceMark rm(THREAD); |
0 | 1120 char buf[200]; |
6983 | 1121 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1122 resolved_method->name(), |
1123 resolved_method->signature())); | |
1124 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
1125 } | |
12318
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1126 |
12823
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1127 if (PrintVtables && Verbose) { |
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|
1128 ResourceMark rm(THREAD); |
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1129 tty->print("invokevirtual resolved method: caller-class:%s, compile-time-class:%s, method:%s, method_holder:%s, access_flags: ", |
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1130 (current_klass.is_null() ? "<NULL>" : current_klass->internal_name()), |
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1131 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
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1132 Method::name_and_sig_as_C_string(resolved_klass(), |
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|
1133 resolved_method->name(), |
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|
1134 resolved_method->signature()), |
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|
1135 resolved_method->method_holder()->internal_name() |
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|
1136 ); |
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|
1137 resolved_method->access_flags().print_on(tty); |
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|
1138 if (resolved_method->is_default_method()) { |
13055
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|
1139 tty->print("default "); |
12823
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|
1140 } |
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1141 if (resolved_method->is_overpass()) { |
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1142 tty->print("overpass"); |
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|
1143 } |
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|
1144 tty->cr(); |
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|
1145 } |
0 | 1146 } |
1147 | |
1148 // throws runtime exceptions | |
1149 void LinkResolver::runtime_resolve_virtual_method(CallInfo& result, | |
1150 methodHandle resolved_method, | |
1151 KlassHandle resolved_klass, | |
1152 Handle recv, | |
1153 KlassHandle recv_klass, | |
1154 bool check_null_and_abstract, | |
1155 TRAPS) { | |
1156 | |
1157 // setup default return values | |
6725
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|
1158 int vtable_index = Method::invalid_vtable_index; |
0 | 1159 methodHandle selected_method; |
1160 | |
1161 assert(recv.is_null() || recv->is_oop(), "receiver is not an oop"); | |
1162 | |
1163 // runtime method resolution | |
1164 if (check_null_and_abstract && recv.is_null()) { // check if receiver exists | |
1165 THROW(vmSymbols::java_lang_NullPointerException()); | |
1166 } | |
1167 | |
6725
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1168 // Virtual methods cannot be resolved before its klass has been linked, for otherwise the Method*'s |
0 | 1169 // has not been rewritten, and the vtable initialized. Make sure to do this after the nullcheck, since |
1170 // a missing receiver might result in a bogus lookup. | |
6940
18fb7da42534
8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
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|
1171 assert(resolved_method->method_holder()->is_linked(), "must be linked"); |
0 | 1172 |
1173 // do lookup based on receiver klass using the vtable index | |
6725
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1174 if (resolved_method->method_holder()->is_interface()) { // miranda method |
12823
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|
1175 vtable_index = vtable_index_of_interface_method(resolved_klass, |
13055
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|
1176 resolved_method); |
0 | 1177 assert(vtable_index >= 0 , "we should have valid vtable index at this point"); |
1178 | |
6725
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|
1179 InstanceKlass* inst = InstanceKlass::cast(recv_klass()); |
0 | 1180 selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index)); |
1181 } else { | |
1182 // at this point we are sure that resolved_method is virtual and not | |
1183 // a miranda method; therefore, it must have a valid vtable index. | |
12264
b2e698d2276c
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|
1184 assert(!resolved_method->has_itable_index(), ""); |
0 | 1185 vtable_index = resolved_method->vtable_index(); |
1186 // We could get a negative vtable_index for final methods, | |
1187 // because as an optimization they are they are never put in the vtable, | |
1188 // unless they override an existing method. | |
1189 // If we do get a negative, it means the resolved method is the the selected | |
1190 // method, and it can never be changed by an override. | |
6725
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|
1191 if (vtable_index == Method::nonvirtual_vtable_index) { |
0 | 1192 assert(resolved_method->can_be_statically_bound(), "cannot override this method"); |
1193 selected_method = resolved_method; | |
1194 } else { | |
1195 // recv_klass might be an arrayKlassOop but all vtables start at | |
1196 // the same place. The cast is to avoid virtual call and assertion. | |
6725
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|
1197 InstanceKlass* inst = (InstanceKlass*)recv_klass(); |
0 | 1198 selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index)); |
1199 } | |
1200 } | |
1201 | |
1202 // check if method exists | |
1203 if (selected_method.is_null()) { | |
1204 ResourceMark rm(THREAD); | |
1205 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1206 Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1207 resolved_method->name(), |
1208 resolved_method->signature())); | |
1209 } | |
1210 | |
1211 // check if abstract | |
1212 if (check_null_and_abstract && selected_method->is_abstract()) { | |
1213 ResourceMark rm(THREAD); | |
1214 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1215 Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1216 selected_method->name(), |
1217 selected_method->signature())); | |
1218 } | |
1219 | |
12318
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1220 if (PrintVtables && Verbose) { |
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8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1221 ResourceMark rm(THREAD); |
36b97be47bde
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|
1222 tty->print("invokevirtual selected method: receiver-class:%s, resolved-class:%s, method:%s, method_holder:%s, vtable_index:%d, access_flags: ", |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1223 (recv_klass.is_null() ? "<NULL>" : recv_klass->internal_name()), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1224 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1225 Method::name_and_sig_as_C_string(resolved_klass(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1226 resolved_method->name(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1227 resolved_method->signature()), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1228 selected_method->method_holder()->internal_name(), |
36b97be47bde
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acorn
parents:
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diff
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|
1229 vtable_index |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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parents:
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diff
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|
1230 ); |
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8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
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|
1231 selected_method->access_flags().print_on(tty); |
12823
ac9cb1d5a202
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acorn
parents:
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diff
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|
1232 if (selected_method->is_default_method()) { |
13055
fce21ac5968d
8027229: ICCE expected for >=2 maximally specific default methods.
acorn
parents:
12945
diff
changeset
|
1233 tty->print("default "); |
12318
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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|
1234 } |
12823
ac9cb1d5a202
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parents:
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|
1235 if (selected_method->is_overpass()) { |
12318
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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|
1236 tty->print("overpass"); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
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|
1237 } |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
changeset
|
1238 tty->cr(); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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diff
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|
1239 } |
0 | 1240 // setup result |
1241 result.set_virtual(resolved_klass, recv_klass, resolved_method, selected_method, vtable_index, CHECK); | |
1242 } | |
1243 | |
1244 void LinkResolver::resolve_interface_call(CallInfo& result, Handle recv, KlassHandle recv_klass, KlassHandle resolved_klass, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
1245 Symbol* method_name, Symbol* method_signature, KlassHandle current_klass, |
0 | 1246 bool check_access, bool check_null_and_abstract, TRAPS) { |
1247 methodHandle resolved_method; | |
1248 linktime_resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
1249 runtime_resolve_interface_method(result, resolved_method, resolved_klass, recv, recv_klass, check_null_and_abstract, CHECK); | |
1250 } | |
1251 | |
1252 // throws linktime exceptions | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
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diff
changeset
|
1253 void LinkResolver::linktime_resolve_interface_method(methodHandle& resolved_method, KlassHandle resolved_klass, Symbol* method_name, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
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diff
changeset
|
1254 Symbol* method_signature, KlassHandle current_klass, bool check_access, TRAPS) { |
0 | 1255 // normal interface method resolution |
13413 | 1256 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, true, CHECK); |
0 | 1257 |
1258 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier"); | |
1259 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier"); | |
1260 } | |
1261 | |
1262 // throws runtime exceptions | |
1263 void LinkResolver::runtime_resolve_interface_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass, | |
1264 Handle recv, KlassHandle recv_klass, bool check_null_and_abstract, TRAPS) { | |
1265 // check if receiver exists | |
1266 if (check_null_and_abstract && recv.is_null()) { | |
1267 THROW(vmSymbols::java_lang_NullPointerException()); | |
1268 } | |
1269 | |
12318
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
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|
1270 // check if private interface method |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1271 if (resolved_klass->is_interface() && resolved_method->is_private()) { |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
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|
1272 ResourceMark rm(THREAD); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
changeset
|
1273 char buf[200]; |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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diff
changeset
|
1274 jio_snprintf(buf, sizeof(buf), "private interface method requires invokespecial, not invokeinterface: method %s", |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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parents:
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diff
changeset
|
1275 Method::name_and_sig_as_C_string(resolved_klass(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
changeset
|
1276 resolved_method->name(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
changeset
|
1277 resolved_method->signature())); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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diff
changeset
|
1278 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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diff
changeset
|
1279 } |
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8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
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|
1280 |
0 | 1281 // check if receiver klass implements the resolved interface |
1282 if (!recv_klass->is_subtype_of(resolved_klass())) { | |
3324
acf5e660c71a
6728025: LinkResolver is missing some ResourceMarks
jcoomes
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2460
diff
changeset
|
1283 ResourceMark rm(THREAD); |
0 | 1284 char buf[200]; |
1285 jio_snprintf(buf, sizeof(buf), "Class %s does not implement the requested interface %s", | |
6983 | 1286 recv_klass()->external_name(), |
1287 resolved_klass()->external_name()); | |
0 | 1288 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
1289 } | |
1290 // do lookup based on receiver klass | |
1291 methodHandle sel_method; | |
1292 lookup_instance_method_in_klasses(sel_method, recv_klass, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
1293 resolved_method->name(), |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
1294 resolved_method->signature(), CHECK); |
12264
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
changeset
|
1295 if (sel_method.is_null() && !check_null_and_abstract) { |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
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diff
changeset
|
1296 // In theory this is a harmless placeholder value, but |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
changeset
|
1297 // in practice leaving in null affects the nsk default method tests. |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
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|
1298 // This needs further study. |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
changeset
|
1299 sel_method = resolved_method; |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
changeset
|
1300 } |
0 | 1301 // check if method exists |
1302 if (sel_method.is_null()) { | |
1303 ResourceMark rm(THREAD); | |
1304 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1305 Method::name_and_sig_as_C_string(recv_klass(), |
0 | 1306 resolved_method->name(), |
1307 resolved_method->signature())); | |
1308 } | |
10128
41ed397cc0cd
8006267: InterfaceMethod_ref should allow invokestatic and invokespecial
bharadwaj
parents:
9082
diff
changeset
|
1309 // check access |
12318
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|
1310 // Throw Illegal Access Error if sel_method is not public. |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1311 if (!sel_method->is_public()) { |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1312 ResourceMark rm(THREAD); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1313 THROW_MSG(vmSymbols::java_lang_IllegalAccessError(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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diff
changeset
|
1314 Method::name_and_sig_as_C_string(recv_klass(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1315 sel_method->name(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
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|
1316 sel_method->signature())); |
10128
41ed397cc0cd
8006267: InterfaceMethod_ref should allow invokestatic and invokespecial
bharadwaj
parents:
9082
diff
changeset
|
1317 } |
0 | 1318 // check if abstract |
1319 if (check_null_and_abstract && sel_method->is_abstract()) { | |
1320 ResourceMark rm(THREAD); | |
1321 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1322 Method::name_and_sig_as_C_string(recv_klass(), |
0 | 1323 sel_method->name(), |
1324 sel_method->signature())); | |
1325 } | |
12318
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acorn
parents:
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diff
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|
1326 |
36b97be47bde
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1327 if (TraceItables && Verbose) { |
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1328 ResourceMark rm(THREAD); |
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1329 tty->print("invokeinterface selected method: receiver-class:%s, resolved-class:%s, method:%s, method_holder:%s, access_flags: ", |
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1330 (recv_klass.is_null() ? "<NULL>" : recv_klass->internal_name()), |
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1331 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
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1332 Method::name_and_sig_as_C_string(resolved_klass(), |
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1333 resolved_method->name(), |
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1334 resolved_method->signature()), |
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1335 sel_method->method_holder()->internal_name() |
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1336 ); |
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1337 sel_method->access_flags().print_on(tty); |
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1338 if (sel_method->is_default_method()) { |
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1339 tty->print("default "); |
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1340 } |
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1341 if (sel_method->is_overpass()) { |
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1342 tty->print("overpass"); |
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|
1343 } |
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|
1344 tty->cr(); |
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|
1345 } |
13055
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|
1346 // setup result |
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1347 if (!resolved_method->has_itable_index()) { |
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|
1348 int vtable_index = resolved_method->vtable_index(); |
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1349 assert(vtable_index == sel_method->vtable_index(), "sanity check"); |
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1350 result.set_virtual(resolved_klass, recv_klass, resolved_method, sel_method, vtable_index, CHECK); |
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1351 } else { |
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1352 int itable_index = resolved_method()->itable_index(); |
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1353 result.set_interface(resolved_klass, recv_klass, resolved_method, sel_method, itable_index, CHECK); |
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1354 } |
0 | 1355 } |
1356 | |
1357 | |
1358 methodHandle LinkResolver::linktime_resolve_interface_method_or_null( | |
1359 KlassHandle resolved_klass, | |
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1360 Symbol* method_name, |
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1361 Symbol* method_signature, |
0 | 1362 KlassHandle current_klass, |
1363 bool check_access) { | |
1364 EXCEPTION_MARK; | |
1365 methodHandle method_result; | |
1366 linktime_resolve_interface_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD); | |
1367 if (HAS_PENDING_EXCEPTION) { | |
1368 CLEAR_PENDING_EXCEPTION; | |
1369 return methodHandle(); | |
1370 } else { | |
1371 return method_result; | |
1372 } | |
1373 } | |
1374 | |
1375 methodHandle LinkResolver::linktime_resolve_virtual_method_or_null( | |
1376 KlassHandle resolved_klass, | |
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1377 Symbol* method_name, |
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1378 Symbol* method_signature, |
0 | 1379 KlassHandle current_klass, |
1380 bool check_access) { | |
1381 EXCEPTION_MARK; | |
1382 methodHandle method_result; | |
1383 linktime_resolve_virtual_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD); | |
1384 if (HAS_PENDING_EXCEPTION) { | |
1385 CLEAR_PENDING_EXCEPTION; | |
1386 return methodHandle(); | |
1387 } else { | |
1388 return method_result; | |
1389 } | |
1390 } | |
1391 | |
1392 methodHandle LinkResolver::resolve_virtual_call_or_null( | |
1393 KlassHandle receiver_klass, | |
1394 KlassHandle resolved_klass, | |
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1395 Symbol* name, |
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1396 Symbol* signature, |
0 | 1397 KlassHandle current_klass) { |
1398 EXCEPTION_MARK; | |
1399 CallInfo info; | |
1400 resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
1401 if (HAS_PENDING_EXCEPTION) { | |
1402 CLEAR_PENDING_EXCEPTION; | |
1403 return methodHandle(); | |
1404 } | |
1405 return info.selected_method(); | |
1406 } | |
1407 | |
1408 methodHandle LinkResolver::resolve_interface_call_or_null( | |
1409 KlassHandle receiver_klass, | |
1410 KlassHandle resolved_klass, | |
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1411 Symbol* name, |
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1412 Symbol* signature, |
0 | 1413 KlassHandle current_klass) { |
1414 EXCEPTION_MARK; | |
1415 CallInfo info; | |
1416 resolve_interface_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
1417 if (HAS_PENDING_EXCEPTION) { | |
1418 CLEAR_PENDING_EXCEPTION; | |
1419 return methodHandle(); | |
1420 } | |
1421 return info.selected_method(); | |
1422 } | |
1423 | |
1424 int LinkResolver::resolve_virtual_vtable_index( | |
1425 KlassHandle receiver_klass, | |
1426 KlassHandle resolved_klass, | |
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1427 Symbol* name, |
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1428 Symbol* signature, |
0 | 1429 KlassHandle current_klass) { |
1430 EXCEPTION_MARK; | |
1431 CallInfo info; | |
1432 resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
1433 if (HAS_PENDING_EXCEPTION) { | |
1434 CLEAR_PENDING_EXCEPTION; | |
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1435 return Method::invalid_vtable_index; |
0 | 1436 } |
1437 return info.vtable_index(); | |
1438 } | |
1439 | |
1440 methodHandle LinkResolver::resolve_static_call_or_null( | |
1441 KlassHandle resolved_klass, | |
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1442 Symbol* name, |
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1443 Symbol* signature, |
0 | 1444 KlassHandle current_klass) { |
1445 EXCEPTION_MARK; | |
1446 CallInfo info; | |
1447 resolve_static_call(info, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
1448 if (HAS_PENDING_EXCEPTION) { | |
1449 CLEAR_PENDING_EXCEPTION; | |
1450 return methodHandle(); | |
1451 } | |
1452 return info.selected_method(); | |
1453 } | |
1454 | |
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1455 methodHandle LinkResolver::resolve_special_call_or_null(KlassHandle resolved_klass, Symbol* name, Symbol* signature, |
0 | 1456 KlassHandle current_klass) { |
1457 EXCEPTION_MARK; | |
1458 CallInfo info; | |
1459 resolve_special_call(info, resolved_klass, name, signature, current_klass, true, THREAD); | |
1460 if (HAS_PENDING_EXCEPTION) { | |
1461 CLEAR_PENDING_EXCEPTION; | |
1462 return methodHandle(); | |
1463 } | |
1464 return info.selected_method(); | |
1465 } | |
1466 | |
1467 | |
1468 | |
1469 //------------------------------------------------------------------------------------------------------------------------ | |
1470 // ConstantPool entries | |
1471 | |
1472 void LinkResolver::resolve_invoke(CallInfo& result, Handle recv, constantPoolHandle pool, int index, Bytecodes::Code byte, TRAPS) { | |
1473 switch (byte) { | |
1474 case Bytecodes::_invokestatic : resolve_invokestatic (result, pool, index, CHECK); break; | |
1475 case Bytecodes::_invokespecial : resolve_invokespecial (result, pool, index, CHECK); break; | |
1476 case Bytecodes::_invokevirtual : resolve_invokevirtual (result, recv, pool, index, CHECK); break; | |
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1477 case Bytecodes::_invokehandle : resolve_invokehandle (result, pool, index, CHECK); break; |
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1478 case Bytecodes::_invokedynamic : resolve_invokedynamic (result, pool, index, CHECK); break; |
0 | 1479 case Bytecodes::_invokeinterface: resolve_invokeinterface(result, recv, pool, index, CHECK); break; |
1480 } | |
1481 return; | |
1482 } | |
1483 | |
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1484 void LinkResolver::resolve_pool(KlassHandle& resolved_klass, Symbol*& method_name, Symbol*& method_signature, |
0 | 1485 KlassHandle& current_klass, constantPoolHandle pool, int index, TRAPS) { |
1486 // resolve klass | |
1487 resolve_klass(resolved_klass, pool, index, CHECK); | |
1488 | |
1489 // Get name, signature, and static klass | |
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1490 method_name = pool->name_ref_at(index); |
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1491 method_signature = pool->signature_ref_at(index); |
0 | 1492 current_klass = KlassHandle(THREAD, pool->pool_holder()); |
1493 } | |
1494 | |
1495 | |
1496 void LinkResolver::resolve_invokestatic(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { | |
1497 KlassHandle resolved_klass; | |
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1498 Symbol* method_name = NULL; |
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1499 Symbol* method_signature = NULL; |
0 | 1500 KlassHandle current_klass; |
1501 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
1502 resolve_static_call(result, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); | |
1503 } | |
1504 | |
1505 | |
1506 void LinkResolver::resolve_invokespecial(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { | |
1507 KlassHandle resolved_klass; | |
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1508 Symbol* method_name = NULL; |
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1509 Symbol* method_signature = NULL; |
0 | 1510 KlassHandle current_klass; |
1511 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
1512 resolve_special_call(result, resolved_klass, method_name, method_signature, current_klass, true, CHECK); | |
1513 } | |
1514 | |
1515 | |
1516 void LinkResolver::resolve_invokevirtual(CallInfo& result, Handle recv, | |
1517 constantPoolHandle pool, int index, | |
1518 TRAPS) { | |
1519 | |
1520 KlassHandle resolved_klass; | |
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1521 Symbol* method_name = NULL; |
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1522 Symbol* method_signature = NULL; |
0 | 1523 KlassHandle current_klass; |
1524 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
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1525 KlassHandle recvrKlass (THREAD, recv.is_null() ? (Klass*)NULL : recv->klass()); |
0 | 1526 resolve_virtual_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); |
1527 } | |
1528 | |
1529 | |
1530 void LinkResolver::resolve_invokeinterface(CallInfo& result, Handle recv, constantPoolHandle pool, int index, TRAPS) { | |
1531 KlassHandle resolved_klass; | |
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1532 Symbol* method_name = NULL; |
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1533 Symbol* method_signature = NULL; |
0 | 1534 KlassHandle current_klass; |
1535 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
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1536 KlassHandle recvrKlass (THREAD, recv.is_null() ? (Klass*)NULL : recv->klass()); |
0 | 1537 resolve_interface_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); |
1538 } | |
1539 | |
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1540 |
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1541 void LinkResolver::resolve_invokehandle(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { |
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|
1542 assert(EnableInvokeDynamic, ""); |
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1543 // This guy is reached from InterpreterRuntime::resolve_invokehandle. |
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1544 KlassHandle resolved_klass; |
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1545 Symbol* method_name = NULL; |
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1546 Symbol* method_signature = NULL; |
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1547 KlassHandle current_klass; |
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1548 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); |
9082 | 1549 if (TraceMethodHandles) { |
1550 ResourceMark rm(THREAD); | |
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1551 tty->print_cr("resolve_invokehandle %s %s", method_name->as_C_string(), method_signature->as_C_string()); |
9082 | 1552 } |
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1553 resolve_handle_call(result, resolved_klass, method_name, method_signature, current_klass, CHECK); |
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1554 } |
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1555 |
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1556 void LinkResolver::resolve_handle_call(CallInfo& result, KlassHandle resolved_klass, |
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1557 Symbol* method_name, Symbol* method_signature, |
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1558 KlassHandle current_klass, |
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1559 TRAPS) { |
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1560 // JSR 292: this must be an implicitly generated method MethodHandle.invokeExact(*...) or similar |
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1561 assert(resolved_klass() == SystemDictionary::MethodHandle_klass(), ""); |
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1562 assert(MethodHandles::is_signature_polymorphic_name(method_name), ""); |
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1563 methodHandle resolved_method; |
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1564 Handle resolved_appendix; |
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1565 Handle resolved_method_type; |
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1566 lookup_polymorphic_method(resolved_method, resolved_klass, |
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1567 method_name, method_signature, |
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1568 current_klass, &resolved_appendix, &resolved_method_type, CHECK); |
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1569 result.set_handle(resolved_method, resolved_appendix, resolved_method_type, CHECK); |
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1570 } |
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1571 |
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1572 |
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1573 void LinkResolver::resolve_invokedynamic(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { |
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1574 assert(EnableInvokeDynamic, ""); |
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1575 |
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1576 //resolve_pool(<resolved_klass>, method_name, method_signature, current_klass, pool, index, CHECK); |
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1577 Symbol* method_name = pool->name_ref_at(index); |
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1578 Symbol* method_signature = pool->signature_ref_at(index); |
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1579 KlassHandle current_klass = KlassHandle(THREAD, pool->pool_holder()); |
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1580 |
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1581 // Resolve the bootstrap specifier (BSM + optional arguments). |
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1582 Handle bootstrap_specifier; |
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1583 // Check if CallSite has been bound already: |
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1584 ConstantPoolCacheEntry* cpce = pool->invokedynamic_cp_cache_entry_at(index); |
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1585 if (cpce->is_f1_null()) { |
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1586 int pool_index = cpce->constant_pool_index(); |
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1587 oop bsm_info = pool->resolve_bootstrap_specifier_at(pool_index, CHECK); |
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1588 assert(bsm_info != NULL, ""); |
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1589 // FIXME: Cache this once per BootstrapMethods entry, not once per CONSTANT_InvokeDynamic. |
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1590 bootstrap_specifier = Handle(THREAD, bsm_info); |
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1591 } |
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1592 if (!cpce->is_f1_null()) { |
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1593 methodHandle method( THREAD, cpce->f1_as_method()); |
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1594 Handle appendix( THREAD, cpce->appendix_if_resolved(pool)); |
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1595 Handle method_type(THREAD, cpce->method_type_if_resolved(pool)); |
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1596 result.set_handle(method, appendix, method_type, CHECK); |
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1597 return; |
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1598 } |
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1599 |
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1600 if (TraceMethodHandles) { |
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1601 ResourceMark rm(THREAD); |
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1602 tty->print_cr("resolve_invokedynamic #%d %s %s", |
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1603 ConstantPool::decode_invokedynamic_index(index), |
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1604 method_name->as_C_string(), method_signature->as_C_string()); |
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1605 tty->print(" BSM info: "); bootstrap_specifier->print(); |
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1606 } |
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1607 |
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1608 resolve_dynamic_call(result, bootstrap_specifier, method_name, method_signature, current_klass, CHECK); |
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1609 } |
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1610 |
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1611 void LinkResolver::resolve_dynamic_call(CallInfo& result, |
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1612 Handle bootstrap_specifier, |
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1613 Symbol* method_name, Symbol* method_signature, |
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1614 KlassHandle current_klass, |
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1615 TRAPS) { |
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1616 // JSR 292: this must resolve to an implicitly generated method MH.linkToCallSite(*...) |
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1617 // The appendix argument is likely to be a freshly-created CallSite. |
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1618 Handle resolved_appendix; |
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1619 Handle resolved_method_type; |
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1620 methodHandle resolved_method = |
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1621 SystemDictionary::find_dynamic_call_site_invoker(current_klass, |
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1622 bootstrap_specifier, |
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1623 method_name, method_signature, |
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1624 &resolved_appendix, |
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1625 &resolved_method_type, |
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1626 THREAD); |
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1627 if (HAS_PENDING_EXCEPTION) { |
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1628 if (TraceMethodHandles) { |
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1629 tty->print_cr("invokedynamic throws BSME for "INTPTR_FORMAT, (void *)PENDING_EXCEPTION); |
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1630 PENDING_EXCEPTION->print(); |
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1631 } |
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1632 if (PENDING_EXCEPTION->is_a(SystemDictionary::BootstrapMethodError_klass())) { |
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1633 // throw these guys, since they are already wrapped |
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1634 return; |
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1635 } |
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1636 if (!PENDING_EXCEPTION->is_a(SystemDictionary::LinkageError_klass())) { |
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1637 // intercept only LinkageErrors which might have failed to wrap |
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1638 return; |
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1639 } |
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1640 // See the "Linking Exceptions" section for the invokedynamic instruction in the JVMS. |
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1641 Handle nested_exception(THREAD, PENDING_EXCEPTION); |
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1642 CLEAR_PENDING_EXCEPTION; |
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1643 THROW_CAUSE(vmSymbols::java_lang_BootstrapMethodError(), nested_exception) |
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1644 } |
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1645 result.set_handle(resolved_method, resolved_appendix, resolved_method_type, CHECK); |
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1646 } |
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1647 |
0 | 1648 //------------------------------------------------------------------------------------------------------------------------ |
1649 #ifndef PRODUCT | |
1650 | |
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1651 void CallInfo::print() { |
0 | 1652 ResourceMark rm; |
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1653 const char* kindstr = "unknown"; |
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1654 switch (_call_kind) { |
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1655 case direct_call: kindstr = "direct"; break; |
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1656 case vtable_call: kindstr = "vtable"; break; |
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1657 case itable_call: kindstr = "itable"; break; |
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1658 } |
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1659 tty->print_cr("Call %s@%d %s", kindstr, _call_index, |
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1660 _resolved_method.is_null() ? "(none)" : _resolved_method->name_and_sig_as_C_string()); |
0 | 1661 } |
1662 | |
1663 #endif |