Mercurial > hg > truffle
annotate src/share/vm/interpreter/linkResolver.cpp @ 10128:41ed397cc0cd
8006267: InterfaceMethod_ref should allow invokestatic and invokespecial
Summary: Lambda changes; spec 0.6.2 - Allow static invokestatic and invokespecial calls to InterfaceMethod_ref
Reviewed-by: dholmes, acorn
| author | bharadwaj |
|---|---|
| date | Thu, 18 Apr 2013 08:05:35 -0700 |
| parents | d79859ff6535 |
| children | b2e698d2276c |
| rev | line source |
|---|---|
| 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 // Implementation of FieldAccessInfo | |
| 51 | |
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52 void FieldAccessInfo::set(KlassHandle klass, Symbol* name, int field_index, int field_offset, |
| 0 | 53 BasicType field_type, AccessFlags access_flags) { |
| 54 _klass = klass; | |
| 55 _name = name; | |
| 56 _field_index = field_index; | |
| 57 _field_offset = field_offset; | |
| 58 _field_type = field_type; | |
| 59 _access_flags = access_flags; | |
| 60 } | |
| 61 | |
| 62 | |
| 63 //------------------------------------------------------------------------------------------------------------------------ | |
| 64 // Implementation of CallInfo | |
| 65 | |
| 66 | |
| 67 void CallInfo::set_static(KlassHandle resolved_klass, methodHandle resolved_method, TRAPS) { | |
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68 int vtable_index = Method::nonvirtual_vtable_index; |
| 0 | 69 set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, vtable_index, CHECK); |
| 70 } | |
| 71 | |
| 72 | |
| 73 void CallInfo::set_interface(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, TRAPS) { | |
| 74 // This is only called for interface methods. If the resolved_method | |
| 75 // comes from java/lang/Object, it can be the subject of a virtual call, so | |
| 76 // we should pick the vtable index from the resolved method. | |
| 77 // Other than that case, there is no valid vtable index to specify. | |
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78 int vtable_index = Method::invalid_vtable_index; |
| 1142 | 79 if (resolved_method->method_holder() == SystemDictionary::Object_klass()) { |
| 0 | 80 assert(resolved_method->vtable_index() == selected_method->vtable_index(), "sanity check"); |
| 81 vtable_index = resolved_method->vtable_index(); | |
| 82 } | |
| 83 set_common(resolved_klass, selected_klass, resolved_method, selected_method, vtable_index, CHECK); | |
| 84 } | |
| 85 | |
| 86 void CallInfo::set_virtual(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS) { | |
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87 assert(vtable_index >= 0 || vtable_index == Method::nonvirtual_vtable_index, "valid index"); |
| 0 | 88 set_common(resolved_klass, selected_klass, resolved_method, selected_method, vtable_index, CHECK); |
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89 assert(!resolved_method->is_compiled_lambda_form(), "these must be handled via an invokehandle call"); |
| 0 | 90 } |
| 91 | |
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92 void CallInfo::set_handle(methodHandle resolved_method, Handle resolved_appendix, Handle resolved_method_type, TRAPS) { |
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93 if (resolved_method.is_null()) { |
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94 THROW_MSG(vmSymbols::java_lang_InternalError(), "resolved method is null"); |
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95 } |
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96 KlassHandle resolved_klass = SystemDictionary::MethodHandle_klass(); |
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97 assert(resolved_method->intrinsic_id() == vmIntrinsics::_invokeBasic || |
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98 resolved_method->is_compiled_lambda_form(), |
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99 "linkMethod must return one of these"); |
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100 int vtable_index = Method::nonvirtual_vtable_index; |
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101 assert(resolved_method->vtable_index() == vtable_index, ""); |
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102 set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, vtable_index, CHECK); |
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103 _resolved_appendix = resolved_appendix; |
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104 _resolved_method_type = resolved_method_type; |
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105 } |
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106 |
| 0 | 107 void CallInfo::set_common(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS) { |
| 108 assert(resolved_method->signature() == selected_method->signature(), "signatures must correspond"); | |
| 109 _resolved_klass = resolved_klass; | |
| 110 _selected_klass = selected_klass; | |
| 111 _resolved_method = resolved_method; | |
| 112 _selected_method = selected_method; | |
| 113 _vtable_index = vtable_index; | |
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114 _resolved_appendix = Handle(); |
| 1783 | 115 if (CompilationPolicy::must_be_compiled(selected_method)) { |
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116 // This path is unusual, mostly used by the '-Xcomp' stress test mode. |
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117 |
| 1783 | 118 // Note: with several active threads, the must_be_compiled may be true |
| 119 // while can_be_compiled is false; remove assert | |
| 120 // assert(CompilationPolicy::can_be_compiled(selected_method), "cannot compile"); | |
| 0 | 121 if (THREAD->is_Compiler_thread()) { |
| 122 // don't force compilation, resolve was on behalf of compiler | |
| 123 return; | |
| 124 } | |
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125 if (selected_method->method_holder()->is_not_initialized()) { |
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126 // 'is_not_initialized' means not only '!is_initialized', but also that |
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127 // initialization has not been started yet ('!being_initialized') |
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128 // Do not force compilation of methods in uninitialized classes. |
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129 // Note that doing this would throw an assert later, |
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130 // in CompileBroker::compile_method. |
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131 // We sometimes use the link resolver to do reflective lookups |
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132 // even before classes are initialized. |
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133 return; |
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134 } |
| 0 | 135 CompileBroker::compile_method(selected_method, InvocationEntryBci, |
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136 CompilationPolicy::policy()->initial_compile_level(), |
| 1783 | 137 methodHandle(), 0, "must_be_compiled", CHECK); |
| 0 | 138 } |
| 139 } | |
| 140 | |
| 141 | |
| 142 //------------------------------------------------------------------------------------------------------------------------ | |
| 143 // Klass resolution | |
| 144 | |
| 145 void LinkResolver::check_klass_accessability(KlassHandle ref_klass, KlassHandle sel_klass, TRAPS) { | |
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146 if (!Reflection::verify_class_access(ref_klass(), |
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147 sel_klass(), |
| 0 | 148 true)) { |
| 149 ResourceMark rm(THREAD); | |
| 150 Exceptions::fthrow( | |
| 151 THREAD_AND_LOCATION, | |
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152 vmSymbols::java_lang_IllegalAccessError(), |
| 0 | 153 "tried to access class %s from class %s", |
| 154 sel_klass->external_name(), | |
| 155 ref_klass->external_name() | |
| 156 ); | |
| 157 return; | |
| 158 } | |
| 159 } | |
| 160 | |
| 161 void LinkResolver::resolve_klass(KlassHandle& result, constantPoolHandle pool, int index, TRAPS) { | |
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162 Klass* result_oop = pool->klass_ref_at(index, CHECK); |
| 0 | 163 result = KlassHandle(THREAD, result_oop); |
| 164 } | |
| 165 | |
| 166 void LinkResolver::resolve_klass_no_update(KlassHandle& result, constantPoolHandle pool, int index, TRAPS) { | |
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167 Klass* result_oop = |
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168 ConstantPool::klass_ref_at_if_loaded_check(pool, index, CHECK); |
| 0 | 169 result = KlassHandle(THREAD, result_oop); |
| 170 } | |
| 171 | |
| 172 | |
| 173 //------------------------------------------------------------------------------------------------------------------------ | |
| 174 // Method resolution | |
| 175 // | |
| 176 // According to JVM spec. $5.4.3c & $5.4.3d | |
| 177 | |
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178 void LinkResolver::lookup_method_in_klasses(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
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179 Method* result_oop = klass->uncached_lookup_method(name, signature); |
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180 if (EnableInvokeDynamic && result_oop != NULL) { |
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181 vmIntrinsics::ID iid = result_oop->intrinsic_id(); |
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182 if (MethodHandles::is_signature_polymorphic(iid)) { |
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183 // Do not link directly to these. The VM must produce a synthetic one using lookup_polymorphic_method. |
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184 return; |
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185 } |
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186 } |
| 0 | 187 result = methodHandle(THREAD, result_oop); |
| 188 } | |
| 189 | |
| 190 // returns first instance method | |
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191 void LinkResolver::lookup_instance_method_in_klasses(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
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192 Method* result_oop = klass->uncached_lookup_method(name, signature); |
| 0 | 193 result = methodHandle(THREAD, result_oop); |
| 194 while (!result.is_null() && result->is_static()) { | |
| 6983 | 195 klass = KlassHandle(THREAD, result->method_holder()->super()); |
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196 result = methodHandle(THREAD, klass->uncached_lookup_method(name, signature)); |
| 0 | 197 } |
| 198 } | |
| 199 | |
| 200 | |
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201 int LinkResolver::vtable_index_of_miranda_method(KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
| 0 | 202 ResourceMark rm(THREAD); |
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203 klassVtable *vt = InstanceKlass::cast(klass())->vtable(); |
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204 return vt->index_of_miranda(name, signature); |
| 0 | 205 } |
| 206 | |
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207 void LinkResolver::lookup_method_in_interfaces(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
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208 InstanceKlass *ik = InstanceKlass::cast(klass()); |
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209 result = methodHandle(THREAD, ik->lookup_method_in_all_interfaces(name, signature)); |
| 0 | 210 } |
| 211 | |
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212 void LinkResolver::lookup_polymorphic_method(methodHandle& result, |
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213 KlassHandle klass, Symbol* name, Symbol* full_signature, |
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214 KlassHandle current_klass, |
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215 Handle *appendix_result_or_null, |
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216 Handle *method_type_result, |
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217 TRAPS) { |
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218 vmIntrinsics::ID iid = MethodHandles::signature_polymorphic_name_id(name); |
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219 if (TraceMethodHandles) { |
| 9082 | 220 ResourceMark rm(THREAD); |
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221 tty->print_cr("lookup_polymorphic_method iid=%s %s.%s%s", |
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222 vmIntrinsics::name_at(iid), klass->external_name(), |
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223 name->as_C_string(), full_signature->as_C_string()); |
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224 } |
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225 if (EnableInvokeDynamic && |
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226 klass() == SystemDictionary::MethodHandle_klass() && |
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227 iid != vmIntrinsics::_none) { |
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228 if (MethodHandles::is_signature_polymorphic_intrinsic(iid)) { |
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229 // Most of these do not need an up-call to Java to resolve, so can be done anywhere. |
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230 // Do not erase last argument type (MemberName) if it is a static linkTo method. |
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231 bool keep_last_arg = MethodHandles::is_signature_polymorphic_static(iid); |
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232 TempNewSymbol basic_signature = |
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233 MethodHandles::lookup_basic_type_signature(full_signature, keep_last_arg, CHECK); |
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234 if (TraceMethodHandles) { |
| 9082 | 235 ResourceMark rm(THREAD); |
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236 tty->print_cr("lookup_polymorphic_method %s %s => basic %s", |
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237 name->as_C_string(), |
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238 full_signature->as_C_string(), |
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239 basic_signature->as_C_string()); |
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240 } |
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241 result = SystemDictionary::find_method_handle_intrinsic(iid, |
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242 basic_signature, |
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243 CHECK); |
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244 if (result.not_null()) { |
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245 assert(result->is_method_handle_intrinsic(), "MH.invokeBasic or MH.linkTo* intrinsic"); |
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246 assert(result->intrinsic_id() != vmIntrinsics::_invokeGeneric, "wrong place to find this"); |
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247 assert(basic_signature == result->signature(), "predict the result signature"); |
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248 if (TraceMethodHandles) { |
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249 tty->print("lookup_polymorphic_method => intrinsic "); |
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250 result->print_on(tty); |
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251 } |
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252 return; |
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253 } |
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254 } else if (iid == vmIntrinsics::_invokeGeneric |
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255 && !THREAD->is_Compiler_thread() |
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256 && appendix_result_or_null != NULL) { |
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257 // This is a method with type-checking semantics. |
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258 // We will ask Java code to spin an adapter method for it. |
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259 if (!MethodHandles::enabled()) { |
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260 // Make sure the Java part of the runtime has been booted up. |
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261 Klass* natives = SystemDictionary::MethodHandleNatives_klass(); |
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262 if (natives == NULL || InstanceKlass::cast(natives)->is_not_initialized()) { |
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263 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_invoke_MethodHandleNatives(), |
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264 Handle(), |
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265 Handle(), |
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266 true, |
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267 CHECK); |
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268 } |
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269 } |
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270 |
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271 Handle appendix; |
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272 Handle method_type; |
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273 result = SystemDictionary::find_method_handle_invoker(name, |
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274 full_signature, |
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275 current_klass, |
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276 &appendix, |
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277 &method_type, |
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278 CHECK); |
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279 if (TraceMethodHandles) { |
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280 tty->print("lookup_polymorphic_method => (via Java) "); |
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281 result->print_on(tty); |
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282 tty->print(" lookup_polymorphic_method => appendix = "); |
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283 if (appendix.is_null()) tty->print_cr("(none)"); |
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284 else appendix->print_on(tty); |
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285 } |
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286 if (result.not_null()) { |
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287 #ifdef ASSERT |
| 9082 | 288 ResourceMark rm(THREAD); |
| 289 | |
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290 TempNewSymbol basic_signature = |
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291 MethodHandles::lookup_basic_type_signature(full_signature, CHECK); |
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292 int actual_size_of_params = result->size_of_parameters(); |
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293 int expected_size_of_params = ArgumentSizeComputer(basic_signature).size(); |
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294 // +1 for MethodHandle.this, +1 for trailing MethodType |
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295 if (!MethodHandles::is_signature_polymorphic_static(iid)) expected_size_of_params += 1; |
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296 if (appendix.not_null()) expected_size_of_params += 1; |
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297 if (actual_size_of_params != expected_size_of_params) { |
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298 tty->print_cr("*** basic_signature=%s", basic_signature->as_C_string()); |
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299 tty->print_cr("*** result for %s: ", vmIntrinsics::name_at(iid)); |
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300 result->print(); |
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301 } |
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302 assert(actual_size_of_params == expected_size_of_params, |
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303 err_msg("%d != %d", actual_size_of_params, expected_size_of_params)); |
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304 #endif //ASSERT |
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305 |
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306 assert(appendix_result_or_null != NULL, ""); |
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307 (*appendix_result_or_null) = appendix; |
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308 (*method_type_result) = method_type; |
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309 return; |
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310 } |
| 710 | 311 } |
| 312 } | |
| 313 } | |
| 314 | |
| 0 | 315 void LinkResolver::check_method_accessability(KlassHandle ref_klass, |
| 316 KlassHandle resolved_klass, | |
| 317 KlassHandle sel_klass, | |
| 318 methodHandle sel_method, | |
| 319 TRAPS) { | |
| 320 | |
| 321 AccessFlags flags = sel_method->access_flags(); | |
| 322 | |
| 323 // Special case: arrays always override "clone". JVMS 2.15. | |
| 324 // If the resolved klass is an array class, and the declaring class | |
| 325 // is java.lang.Object and the method is "clone", set the flags | |
| 326 // to public. | |
| 327 // | |
| 328 // We'll check for the method name first, as that's most likely | |
| 329 // to be false (so we'll short-circuit out of these tests). | |
| 330 if (sel_method->name() == vmSymbols::clone_name() && | |
| 1142 | 331 sel_klass() == SystemDictionary::Object_klass() && |
| 0 | 332 resolved_klass->oop_is_array()) { |
| 333 // We need to change "protected" to "public". | |
| 334 assert(flags.is_protected(), "clone not protected?"); | |
| 335 jint new_flags = flags.as_int(); | |
| 336 new_flags = new_flags & (~JVM_ACC_PROTECTED); | |
| 337 new_flags = new_flags | JVM_ACC_PUBLIC; | |
| 338 flags.set_flags(new_flags); | |
| 339 } | |
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340 // assert(extra_arg_result_or_null != NULL, "must be able to return extra argument"); |
| 0 | 341 |
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342 if (!Reflection::verify_field_access(ref_klass(), |
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343 resolved_klass(), |
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344 sel_klass(), |
| 0 | 345 flags, |
| 346 true)) { | |
| 347 ResourceMark rm(THREAD); | |
| 348 Exceptions::fthrow( | |
| 349 THREAD_AND_LOCATION, | |
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350 vmSymbols::java_lang_IllegalAccessError(), |
| 0 | 351 "tried to access method %s.%s%s from class %s", |
| 352 sel_klass->external_name(), | |
| 353 sel_method->name()->as_C_string(), | |
| 354 sel_method->signature()->as_C_string(), | |
| 355 ref_klass->external_name() | |
| 356 ); | |
| 357 return; | |
| 358 } | |
| 359 } | |
| 360 | |
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361 void LinkResolver::resolve_method_statically(methodHandle& resolved_method, KlassHandle& resolved_klass, |
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362 Bytecodes::Code code, constantPoolHandle pool, int index, TRAPS) { |
| 0 | 363 |
| 364 // resolve klass | |
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365 if (code == Bytecodes::_invokedynamic) { |
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366 resolved_klass = SystemDictionary::MethodHandle_klass(); |
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367 Symbol* method_name = vmSymbols::invoke_name(); |
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368 Symbol* method_signature = pool->signature_ref_at(index); |
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369 KlassHandle current_klass(THREAD, pool->pool_holder()); |
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370 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK); |
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371 return; |
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372 } |
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373 |
| 0 | 374 resolve_klass(resolved_klass, pool, index, CHECK); |
| 375 | |
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376 Symbol* method_name = pool->name_ref_at(index); |
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377 Symbol* method_signature = pool->signature_ref_at(index); |
| 0 | 378 KlassHandle current_klass(THREAD, pool->pool_holder()); |
| 379 | |
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380 if (pool->has_preresolution() |
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381 || (resolved_klass() == SystemDictionary::MethodHandle_klass() && |
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382 MethodHandles::is_signature_polymorphic_name(resolved_klass(), method_name))) { |
|
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383 Method* result_oop = ConstantPool::method_at_if_loaded(pool, index); |
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384 if (result_oop != NULL) { |
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385 resolved_method = methodHandle(THREAD, result_oop); |
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386 return; |
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387 } |
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388 } |
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389 |
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390 if (code == Bytecodes::_invokeinterface) { |
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391 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK); |
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392 } else { |
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393 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK); |
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394 } |
| 0 | 395 } |
| 396 | |
| 397 void LinkResolver::resolve_method(methodHandle& resolved_method, KlassHandle resolved_klass, | |
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398 Symbol* method_name, Symbol* method_signature, |
| 0 | 399 KlassHandle current_klass, bool check_access, TRAPS) { |
| 400 | |
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401 Handle nested_exception; |
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402 |
| 6934 | 403 // 1. lookup method in resolved klass and its super klasses |
| 0 | 404 lookup_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, CHECK); |
| 405 | |
| 406 if (resolved_method.is_null()) { // not found in the class hierarchy | |
| 6934 | 407 // 2. lookup method in all the interfaces implemented by the resolved klass |
| 0 | 408 lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK); |
| 409 | |
| 410 if (resolved_method.is_null()) { | |
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411 // JSR 292: see if this is an implicitly generated method MethodHandle.linkToVirtual(*...), etc |
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412 lookup_polymorphic_method(resolved_method, resolved_klass, method_name, method_signature, |
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413 current_klass, (Handle*)NULL, (Handle*)NULL, THREAD); |
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414 if (HAS_PENDING_EXCEPTION) { |
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415 nested_exception = Handle(THREAD, PENDING_EXCEPTION); |
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416 CLEAR_PENDING_EXCEPTION; |
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417 } |
| 710 | 418 } |
| 419 | |
| 420 if (resolved_method.is_null()) { | |
| 6934 | 421 // 3. method lookup failed |
| 0 | 422 ResourceMark rm(THREAD); |
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423 THROW_MSG_CAUSE(vmSymbols::java_lang_NoSuchMethodError(), |
| 6983 | 424 Method::name_and_sig_as_C_string(resolved_klass(), |
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425 method_name, |
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426 method_signature), |
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427 nested_exception); |
| 0 | 428 } |
| 429 } | |
| 430 | |
| 6934 | 431 // 4. check if klass is not interface |
| 432 if (resolved_klass->is_interface() && resolved_method->is_abstract()) { | |
| 433 ResourceMark rm(THREAD); | |
| 434 char buf[200]; | |
| 435 jio_snprintf(buf, sizeof(buf), "Found interface %s, but class was expected", | |
| 436 resolved_klass()->external_name()); | |
| 437 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
| 438 } | |
| 439 | |
| 0 | 440 // 5. check if method is concrete |
| 441 if (resolved_method->is_abstract() && !resolved_klass->is_abstract()) { | |
| 442 ResourceMark rm(THREAD); | |
| 443 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
| 6983 | 444 Method::name_and_sig_as_C_string(resolved_klass(), |
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445 method_name, |
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446 method_signature)); |
| 0 | 447 } |
| 448 | |
| 449 // 6. access checks, access checking may be turned off when calling from within the VM. | |
| 450 if (check_access) { | |
| 451 assert(current_klass.not_null() , "current_klass should not be null"); | |
| 452 | |
| 453 // check if method can be accessed by the referring class | |
| 454 check_method_accessability(current_klass, | |
| 455 resolved_klass, | |
| 456 KlassHandle(THREAD, resolved_method->method_holder()), | |
| 457 resolved_method, | |
| 458 CHECK); | |
| 459 | |
| 460 // check loader constraints | |
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461 Handle loader (THREAD, InstanceKlass::cast(current_klass())->class_loader()); |
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462 Handle class_loader (THREAD, resolved_method->method_holder()->class_loader()); |
| 0 | 463 { |
| 464 ResourceMark rm(THREAD); | |
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465 Symbol* failed_type_symbol = |
| 0 | 466 SystemDictionary::check_signature_loaders(method_signature, loader, |
| 467 class_loader, true, CHECK); | |
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468 if (failed_type_symbol != NULL) { |
| 0 | 469 const char* msg = "loader constraint violation: when resolving method" |
| 470 " \"%s\" the class loader (instance of %s) of the current class, %s," | |
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471 " and the class loader (instance of %s) for the method's defining class, %s, have" |
| 0 | 472 " different Class objects for the type %s used in the signature"; |
| 6983 | 473 char* sig = Method::name_and_sig_as_C_string(resolved_klass(),method_name,method_signature); |
| 0 | 474 const char* loader1 = SystemDictionary::loader_name(loader()); |
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475 char* current = InstanceKlass::cast(current_klass())->name()->as_C_string(); |
| 0 | 476 const char* loader2 = SystemDictionary::loader_name(class_loader()); |
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477 char* target = InstanceKlass::cast(resolved_method->method_holder()) |
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478 ->name()->as_C_string(); |
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479 char* failed_type_name = failed_type_symbol->as_C_string(); |
| 0 | 480 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) + |
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481 strlen(current) + strlen(loader2) + strlen(target) + |
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482 strlen(failed_type_name) + 1; |
| 0 | 483 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); |
| 484 jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2, | |
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485 target, failed_type_name); |
| 0 | 486 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); |
| 487 } | |
| 488 } | |
| 489 } | |
| 490 } | |
| 491 | |
| 492 void LinkResolver::resolve_interface_method(methodHandle& resolved_method, | |
| 493 KlassHandle resolved_klass, | |
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494 Symbol* method_name, |
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495 Symbol* method_signature, |
| 0 | 496 KlassHandle current_klass, |
| 497 bool check_access, TRAPS) { | |
| 498 | |
| 499 // check if klass is interface | |
| 500 if (!resolved_klass->is_interface()) { | |
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501 ResourceMark rm(THREAD); |
| 0 | 502 char buf[200]; |
| 6983 | 503 jio_snprintf(buf, sizeof(buf), "Found class %s, but interface was expected", resolved_klass()->external_name()); |
| 0 | 504 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
| 505 } | |
| 506 | |
| 507 // lookup method in this interface or its super, java.lang.Object | |
| 508 lookup_instance_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, CHECK); | |
| 509 | |
| 510 if (resolved_method.is_null()) { | |
| 511 // lookup method in all the super-interfaces | |
| 512 lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK); | |
| 513 if (resolved_method.is_null()) { | |
| 514 // no method found | |
| 515 ResourceMark rm(THREAD); | |
| 516 THROW_MSG(vmSymbols::java_lang_NoSuchMethodError(), | |
| 6983 | 517 Method::name_and_sig_as_C_string(resolved_klass(), |
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518 method_name, |
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519 method_signature)); |
| 0 | 520 } |
| 521 } | |
| 522 | |
| 523 if (check_access) { | |
| 524 HandleMark hm(THREAD); | |
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525 Handle loader (THREAD, InstanceKlass::cast(current_klass())->class_loader()); |
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526 Handle class_loader (THREAD, resolved_method->method_holder()->class_loader()); |
| 0 | 527 { |
| 528 ResourceMark rm(THREAD); | |
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529 Symbol* failed_type_symbol = |
| 0 | 530 SystemDictionary::check_signature_loaders(method_signature, loader, |
| 531 class_loader, true, CHECK); | |
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532 if (failed_type_symbol != NULL) { |
| 0 | 533 const char* msg = "loader constraint violation: when resolving " |
| 534 "interface method \"%s\" the class loader (instance of %s) of the " | |
| 535 "current class, %s, and the class loader (instance of %s) for " | |
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536 "the method's defining class, %s, have different Class objects for the type %s " |
| 0 | 537 "used in the signature"; |
| 6983 | 538 char* sig = Method::name_and_sig_as_C_string(resolved_klass(),method_name,method_signature); |
| 0 | 539 const char* loader1 = SystemDictionary::loader_name(loader()); |
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540 char* current = InstanceKlass::cast(current_klass())->name()->as_C_string(); |
| 0 | 541 const char* loader2 = SystemDictionary::loader_name(class_loader()); |
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542 char* target = InstanceKlass::cast(resolved_method->method_holder()) |
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543 ->name()->as_C_string(); |
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544 char* failed_type_name = failed_type_symbol->as_C_string(); |
| 0 | 545 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) + |
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546 strlen(current) + strlen(loader2) + strlen(target) + |
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547 strlen(failed_type_name) + 1; |
| 0 | 548 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); |
| 549 jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2, | |
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550 target, failed_type_name); |
| 0 | 551 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); |
| 552 } | |
| 553 } | |
| 554 } | |
| 555 } | |
| 556 | |
| 557 //------------------------------------------------------------------------------------------------------------------------ | |
| 558 // Field resolution | |
| 559 | |
| 560 void LinkResolver::check_field_accessability(KlassHandle ref_klass, | |
| 561 KlassHandle resolved_klass, | |
| 562 KlassHandle sel_klass, | |
| 563 fieldDescriptor& fd, | |
| 564 TRAPS) { | |
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565 if (!Reflection::verify_field_access(ref_klass(), |
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566 resolved_klass(), |
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567 sel_klass(), |
| 0 | 568 fd.access_flags(), |
| 569 true)) { | |
| 570 ResourceMark rm(THREAD); | |
| 571 Exceptions::fthrow( | |
| 572 THREAD_AND_LOCATION, | |
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573 vmSymbols::java_lang_IllegalAccessError(), |
| 0 | 574 "tried to access field %s.%s from class %s", |
| 575 sel_klass->external_name(), | |
| 576 fd.name()->as_C_string(), | |
| 577 ref_klass->external_name() | |
| 578 ); | |
| 579 return; | |
| 580 } | |
| 581 } | |
| 582 | |
| 583 void LinkResolver::resolve_field(FieldAccessInfo& result, constantPoolHandle pool, int index, Bytecodes::Code byte, bool check_only, TRAPS) { | |
| 584 resolve_field(result, pool, index, byte, check_only, true, CHECK); | |
| 585 } | |
| 586 | |
| 587 void LinkResolver::resolve_field(FieldAccessInfo& result, constantPoolHandle pool, int index, Bytecodes::Code byte, bool check_only, bool update_pool, TRAPS) { | |
| 588 assert(byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic || | |
| 589 byte == Bytecodes::_getfield || byte == Bytecodes::_putfield, "bad bytecode"); | |
| 590 | |
| 591 bool is_static = (byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic); | |
| 592 bool is_put = (byte == Bytecodes::_putfield || byte == Bytecodes::_putstatic); | |
| 593 | |
| 594 // resolve specified klass | |
| 595 KlassHandle resolved_klass; | |
| 596 if (update_pool) { | |
| 597 resolve_klass(resolved_klass, pool, index, CHECK); | |
| 598 } else { | |
| 599 resolve_klass_no_update(resolved_klass, pool, index, CHECK); | |
| 600 } | |
| 601 // Load these early in case the resolve of the containing klass fails | |
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602 Symbol* field = pool->name_ref_at(index); |
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603 Symbol* sig = pool->signature_ref_at(index); |
| 0 | 604 // Check if there's a resolved klass containing the field |
| 605 if( resolved_klass.is_null() ) { | |
| 606 ResourceMark rm(THREAD); | |
| 607 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string()); | |
| 608 } | |
| 609 | |
| 610 // Resolve instance field | |
| 611 fieldDescriptor fd; // find_field initializes fd if found | |
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612 KlassHandle sel_klass(THREAD, InstanceKlass::cast(resolved_klass())->find_field(field, sig, &fd)); |
| 0 | 613 // check if field exists; i.e., if a klass containing the field def has been selected |
| 614 if (sel_klass.is_null()){ | |
| 615 ResourceMark rm(THREAD); | |
| 616 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string()); | |
| 617 } | |
| 618 | |
| 619 // check access | |
| 620 KlassHandle ref_klass(THREAD, pool->pool_holder()); | |
| 621 check_field_accessability(ref_klass, resolved_klass, sel_klass, fd, CHECK); | |
| 622 | |
| 623 // check for errors | |
| 624 if (is_static != fd.is_static()) { | |
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625 ResourceMark rm(THREAD); |
| 0 | 626 char msg[200]; |
| 6983 | 627 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 | 628 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), msg); |
| 629 } | |
| 630 | |
| 631 // Final fields can only be accessed from its own class. | |
| 632 if (is_put && fd.access_flags().is_final() && sel_klass() != pool->pool_holder()) { | |
| 633 THROW(vmSymbols::java_lang_IllegalAccessError()); | |
| 634 } | |
| 635 | |
| 636 // initialize resolved_klass if necessary | |
| 637 // note 1: the klass which declared the field must be initialized (i.e, sel_klass) | |
| 638 // according to the newest JVM spec (5.5, p.170) - was bug (gri 7/28/99) | |
| 639 // | |
| 640 // note 2: we don't want to force initialization if we are just checking | |
| 641 // if the field access is legal; e.g., during compilation | |
| 642 if (is_static && !check_only) { | |
| 643 sel_klass->initialize(CHECK); | |
| 644 } | |
| 645 | |
| 646 { | |
| 647 HandleMark hm(THREAD); | |
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648 Handle ref_loader (THREAD, InstanceKlass::cast(ref_klass())->class_loader()); |
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649 Handle sel_loader (THREAD, InstanceKlass::cast(sel_klass())->class_loader()); |
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650 Symbol* signature_ref = pool->signature_ref_at(index); |
| 0 | 651 { |
| 652 ResourceMark rm(THREAD); | |
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653 Symbol* failed_type_symbol = |
| 0 | 654 SystemDictionary::check_signature_loaders(signature_ref, |
| 655 ref_loader, sel_loader, | |
| 656 false, | |
| 657 CHECK); | |
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658 if (failed_type_symbol != NULL) { |
| 0 | 659 const char* msg = "loader constraint violation: when resolving field" |
| 660 " \"%s\" the class loader (instance of %s) of the referring class, " | |
| 661 "%s, and the class loader (instance of %s) for the field's resolved " | |
| 662 "type, %s, have different Class objects for that type"; | |
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663 char* field_name = field->as_C_string(); |
| 0 | 664 const char* loader1 = SystemDictionary::loader_name(ref_loader()); |
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665 char* sel = InstanceKlass::cast(sel_klass())->name()->as_C_string(); |
| 0 | 666 const char* loader2 = SystemDictionary::loader_name(sel_loader()); |
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667 char* failed_type_name = failed_type_symbol->as_C_string(); |
| 0 | 668 size_t buflen = strlen(msg) + strlen(field_name) + strlen(loader1) + |
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669 strlen(sel) + strlen(loader2) + strlen(failed_type_name) + 1; |
| 0 | 670 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); |
| 671 jio_snprintf(buf, buflen, msg, field_name, loader1, sel, loader2, | |
| 672 failed_type_name); | |
| 673 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); | |
| 674 } | |
| 675 } | |
| 676 } | |
| 677 | |
| 678 // return information. note that the klass is set to the actual klass containing the | |
| 679 // field, otherwise access of static fields in superclasses will not work. | |
| 680 KlassHandle holder (THREAD, fd.field_holder()); | |
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681 Symbol* name = fd.name(); |
| 0 | 682 result.set(holder, name, fd.index(), fd.offset(), fd.field_type(), fd.access_flags()); |
| 683 } | |
| 684 | |
| 685 | |
| 686 //------------------------------------------------------------------------------------------------------------------------ | |
| 687 // Invoke resolution | |
| 688 // | |
| 689 // Naming conventions: | |
| 690 // | |
| 691 // resolved_method the specified method (i.e., static receiver specified via constant pool index) | |
| 692 // sel_method the selected method (selected via run-time lookup; e.g., based on dynamic receiver class) | |
| 693 // resolved_klass the specified klass (i.e., specified via constant pool index) | |
| 694 // recv_klass the receiver klass | |
| 695 | |
| 696 | |
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697 void LinkResolver::resolve_static_call(CallInfo& result, KlassHandle& resolved_klass, Symbol* method_name, |
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698 Symbol* method_signature, KlassHandle current_klass, |
| 0 | 699 bool check_access, bool initialize_class, TRAPS) { |
| 700 methodHandle resolved_method; | |
| 701 linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
| 6983 | 702 resolved_klass = KlassHandle(THREAD, resolved_method->method_holder()); |
| 0 | 703 |
| 704 // Initialize klass (this should only happen if everything is ok) | |
| 705 if (initialize_class && resolved_klass->should_be_initialized()) { | |
| 706 resolved_klass->initialize(CHECK); | |
| 707 linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
| 708 } | |
| 709 | |
| 710 // setup result | |
| 711 result.set_static(resolved_klass, resolved_method, CHECK); | |
| 712 } | |
| 713 | |
| 714 // throws linktime exceptions | |
| 715 void LinkResolver::linktime_resolve_static_method(methodHandle& resolved_method, KlassHandle resolved_klass, | |
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716 Symbol* method_name, Symbol* method_signature, |
| 0 | 717 KlassHandle current_klass, bool check_access, TRAPS) { |
| 718 | |
| 719 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
| 720 assert(resolved_method->name() != vmSymbols::class_initializer_name(), "should have been checked in verifier"); | |
| 721 | |
| 722 // check if static | |
| 723 if (!resolved_method->is_static()) { | |
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724 ResourceMark rm(THREAD); |
| 0 | 725 char buf[200]; |
| 6983 | 726 jio_snprintf(buf, sizeof(buf), "Expected static method %s", Method::name_and_sig_as_C_string(resolved_klass(), |
| 0 | 727 resolved_method->name(), |
| 728 resolved_method->signature())); | |
| 729 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
| 730 } | |
| 731 } | |
| 732 | |
| 733 | |
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734 void LinkResolver::resolve_special_call(CallInfo& result, KlassHandle resolved_klass, Symbol* method_name, |
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735 Symbol* method_signature, KlassHandle current_klass, bool check_access, TRAPS) { |
| 0 | 736 methodHandle resolved_method; |
| 737 linktime_resolve_special_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
| 738 runtime_resolve_special_method(result, resolved_method, resolved_klass, current_klass, check_access, CHECK); | |
| 739 } | |
| 740 | |
| 741 // throws linktime exceptions | |
| 742 void LinkResolver::linktime_resolve_special_method(methodHandle& resolved_method, KlassHandle resolved_klass, | |
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743 Symbol* method_name, Symbol* method_signature, |
| 0 | 744 KlassHandle current_klass, bool check_access, TRAPS) { |
| 745 | |
| 6934 | 746 if (resolved_klass->is_interface() && current_klass() != NULL) { |
| 747 // If the target class is a direct interface, treat this as a "super" | |
| 748 // default call. | |
| 749 // | |
| 750 // If the current method is an overpass that happens to call a direct | |
| 751 // super-interface's method, then we'll end up rerunning the default method | |
| 752 // analysis even though we don't need to, but that's ok since it will end | |
| 753 // up with the same answer. | |
| 754 InstanceKlass* ik = InstanceKlass::cast(current_klass()); | |
| 755 Array<Klass*>* interfaces = ik->local_interfaces(); | |
| 756 int num_interfaces = interfaces->length(); | |
| 757 for (int index = 0; index < num_interfaces; index++) { | |
| 758 if (interfaces->at(index) == resolved_klass()) { | |
| 759 Method* method = DefaultMethods::find_super_default(current_klass(), | |
| 760 resolved_klass(), method_name, method_signature, CHECK); | |
| 761 resolved_method = methodHandle(THREAD, method); | |
| 762 return; | |
| 763 } | |
| 764 } | |
| 765 } | |
| 766 | |
| 0 | 767 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); |
| 768 | |
| 769 // check if method name is <init>, that it is found in same klass as static type | |
| 770 if (resolved_method->name() == vmSymbols::object_initializer_name() && | |
| 771 resolved_method->method_holder() != resolved_klass()) { | |
| 772 ResourceMark rm(THREAD); | |
| 773 Exceptions::fthrow( | |
| 774 THREAD_AND_LOCATION, | |
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775 vmSymbols::java_lang_NoSuchMethodError(), |
| 0 | 776 "%s: method %s%s not found", |
| 777 resolved_klass->external_name(), | |
| 778 resolved_method->name()->as_C_string(), | |
| 779 resolved_method->signature()->as_C_string() | |
| 780 ); | |
| 781 return; | |
| 782 } | |
| 783 | |
| 784 // check if not static | |
| 785 if (resolved_method->is_static()) { | |
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786 ResourceMark rm(THREAD); |
| 0 | 787 char buf[200]; |
| 788 jio_snprintf(buf, sizeof(buf), | |
| 789 "Expecting non-static method %s", | |
| 6983 | 790 Method::name_and_sig_as_C_string(resolved_klass(), |
| 0 | 791 resolved_method->name(), |
| 792 resolved_method->signature())); | |
| 793 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
| 794 } | |
| 795 } | |
| 796 | |
| 797 // throws runtime exceptions | |
| 798 void LinkResolver::runtime_resolve_special_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass, | |
| 799 KlassHandle current_klass, bool check_access, TRAPS) { | |
| 800 | |
| 801 // resolved method is selected method unless we have an old-style lookup | |
| 802 methodHandle sel_method(THREAD, resolved_method()); | |
| 803 | |
| 804 // check if this is an old-style super call and do a new lookup if so | |
| 805 { KlassHandle method_klass = KlassHandle(THREAD, | |
| 806 resolved_method->method_holder()); | |
| 807 | |
| 6934 | 808 const bool direct_calling_default_method = |
| 809 resolved_klass() != NULL && resolved_method() != NULL && | |
| 810 resolved_klass->is_interface() && !resolved_method->is_abstract(); | |
| 811 | |
| 812 if (!direct_calling_default_method && | |
| 813 check_access && | |
| 0 | 814 // a) check if ACC_SUPER flag is set for the current class |
| 8702 | 815 (current_klass->is_super() || !AllowNonVirtualCalls) && |
| 0 | 816 // b) check if the method class is a superclass of the current class (superclass relation is not reflexive!) |
| 6934 | 817 current_klass->is_subtype_of(method_klass()) && |
| 818 current_klass() != method_klass() && | |
| 0 | 819 // c) check if the method is not <init> |
| 820 resolved_method->name() != vmSymbols::object_initializer_name()) { | |
| 821 // Lookup super method | |
| 822 KlassHandle super_klass(THREAD, current_klass->super()); | |
| 823 lookup_instance_method_in_klasses(sel_method, super_klass, | |
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824 resolved_method->name(), |
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825 resolved_method->signature(), CHECK); |
| 0 | 826 // check if found |
| 827 if (sel_method.is_null()) { | |
| 828 ResourceMark rm(THREAD); | |
| 829 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
| 6983 | 830 Method::name_and_sig_as_C_string(resolved_klass(), |
| 0 | 831 resolved_method->name(), |
| 832 resolved_method->signature())); | |
| 833 } | |
| 834 } | |
| 835 } | |
| 836 | |
| 837 // check if not static | |
| 838 if (sel_method->is_static()) { | |
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839 ResourceMark rm(THREAD); |
| 0 | 840 char buf[200]; |
| 6983 | 841 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", Method::name_and_sig_as_C_string(resolved_klass(), |
| 0 | 842 resolved_method->name(), |
| 843 resolved_method->signature())); | |
| 844 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
| 845 } | |
| 846 | |
| 847 // check if abstract | |
| 848 if (sel_method->is_abstract()) { | |
| 849 ResourceMark rm(THREAD); | |
| 850 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
| 6983 | 851 Method::name_and_sig_as_C_string(resolved_klass(), |
| 0 | 852 sel_method->name(), |
| 853 sel_method->signature())); | |
| 854 } | |
| 855 | |
| 856 // setup result | |
| 857 result.set_static(resolved_klass, sel_method, CHECK); | |
| 858 } | |
| 859 | |
| 860 void LinkResolver::resolve_virtual_call(CallInfo& result, Handle recv, KlassHandle receiver_klass, KlassHandle resolved_klass, | |
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861 Symbol* method_name, Symbol* method_signature, KlassHandle current_klass, |
| 0 | 862 bool check_access, bool check_null_and_abstract, TRAPS) { |
| 863 methodHandle resolved_method; | |
| 864 linktime_resolve_virtual_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
| 865 runtime_resolve_virtual_method(result, resolved_method, resolved_klass, recv, receiver_klass, check_null_and_abstract, CHECK); | |
| 866 } | |
| 867 | |
| 868 // throws linktime exceptions | |
| 869 void LinkResolver::linktime_resolve_virtual_method(methodHandle &resolved_method, KlassHandle resolved_klass, | |
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870 Symbol* method_name, Symbol* method_signature, |
| 0 | 871 KlassHandle current_klass, bool check_access, TRAPS) { |
| 872 // normal method resolution | |
| 873 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
| 874 | |
| 875 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier"); | |
| 876 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier"); | |
| 877 | |
| 878 // check if not static | |
| 879 if (resolved_method->is_static()) { | |
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880 ResourceMark rm(THREAD); |
| 0 | 881 char buf[200]; |
| 6983 | 882 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", Method::name_and_sig_as_C_string(resolved_klass(), |
| 0 | 883 resolved_method->name(), |
| 884 resolved_method->signature())); | |
| 885 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
| 886 } | |
| 887 } | |
| 888 | |
| 889 // throws runtime exceptions | |
| 890 void LinkResolver::runtime_resolve_virtual_method(CallInfo& result, | |
| 891 methodHandle resolved_method, | |
| 892 KlassHandle resolved_klass, | |
| 893 Handle recv, | |
| 894 KlassHandle recv_klass, | |
| 895 bool check_null_and_abstract, | |
| 896 TRAPS) { | |
| 897 | |
| 898 // setup default return values | |
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899 int vtable_index = Method::invalid_vtable_index; |
| 0 | 900 methodHandle selected_method; |
| 901 | |
| 902 assert(recv.is_null() || recv->is_oop(), "receiver is not an oop"); | |
| 903 | |
| 904 // runtime method resolution | |
| 905 if (check_null_and_abstract && recv.is_null()) { // check if receiver exists | |
| 906 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 907 } | |
| 908 | |
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909 // Virtual methods cannot be resolved before its klass has been linked, for otherwise the Method*'s |
| 0 | 910 // has not been rewritten, and the vtable initialized. |
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911 assert(resolved_method->method_holder()->is_linked(), "must be linked"); |
| 0 | 912 |
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913 // Virtual methods cannot be resolved before its klass has been linked, for otherwise the Method*'s |
| 0 | 914 // has not been rewritten, and the vtable initialized. Make sure to do this after the nullcheck, since |
| 915 // a missing receiver might result in a bogus lookup. | |
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916 assert(resolved_method->method_holder()->is_linked(), "must be linked"); |
| 0 | 917 |
| 918 // do lookup based on receiver klass using the vtable index | |
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919 if (resolved_method->method_holder()->is_interface()) { // miranda method |
| 0 | 920 vtable_index = vtable_index_of_miranda_method(resolved_klass, |
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921 resolved_method->name(), |
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922 resolved_method->signature(), CHECK); |
| 0 | 923 assert(vtable_index >= 0 , "we should have valid vtable index at this point"); |
| 924 | |
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925 InstanceKlass* inst = InstanceKlass::cast(recv_klass()); |
| 0 | 926 selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index)); |
| 927 } else { | |
| 928 // at this point we are sure that resolved_method is virtual and not | |
| 929 // a miranda method; therefore, it must have a valid vtable index. | |
| 930 vtable_index = resolved_method->vtable_index(); | |
| 931 // We could get a negative vtable_index for final methods, | |
| 932 // because as an optimization they are they are never put in the vtable, | |
| 933 // unless they override an existing method. | |
| 934 // If we do get a negative, it means the resolved method is the the selected | |
| 935 // method, and it can never be changed by an override. | |
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936 if (vtable_index == Method::nonvirtual_vtable_index) { |
| 0 | 937 assert(resolved_method->can_be_statically_bound(), "cannot override this method"); |
| 938 selected_method = resolved_method; | |
| 939 } else { | |
| 940 // recv_klass might be an arrayKlassOop but all vtables start at | |
| 941 // the same place. The cast is to avoid virtual call and assertion. | |
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942 InstanceKlass* inst = (InstanceKlass*)recv_klass(); |
| 0 | 943 selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index)); |
| 944 } | |
| 945 } | |
| 946 | |
| 947 // check if method exists | |
| 948 if (selected_method.is_null()) { | |
| 949 ResourceMark rm(THREAD); | |
| 950 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
| 6983 | 951 Method::name_and_sig_as_C_string(resolved_klass(), |
| 0 | 952 resolved_method->name(), |
| 953 resolved_method->signature())); | |
| 954 } | |
| 955 | |
| 956 // check if abstract | |
| 957 if (check_null_and_abstract && selected_method->is_abstract()) { | |
| 958 ResourceMark rm(THREAD); | |
| 959 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
| 6983 | 960 Method::name_and_sig_as_C_string(resolved_klass(), |
| 0 | 961 selected_method->name(), |
| 962 selected_method->signature())); | |
| 963 } | |
| 964 | |
| 965 // setup result | |
| 966 result.set_virtual(resolved_klass, recv_klass, resolved_method, selected_method, vtable_index, CHECK); | |
| 967 } | |
| 968 | |
| 969 void LinkResolver::resolve_interface_call(CallInfo& result, Handle recv, KlassHandle recv_klass, KlassHandle resolved_klass, | |
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970 Symbol* method_name, Symbol* method_signature, KlassHandle current_klass, |
| 0 | 971 bool check_access, bool check_null_and_abstract, TRAPS) { |
| 972 methodHandle resolved_method; | |
| 973 linktime_resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
| 974 runtime_resolve_interface_method(result, resolved_method, resolved_klass, recv, recv_klass, check_null_and_abstract, CHECK); | |
| 975 } | |
| 976 | |
| 977 // throws linktime exceptions | |
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978 void LinkResolver::linktime_resolve_interface_method(methodHandle& resolved_method, KlassHandle resolved_klass, Symbol* method_name, |
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979 Symbol* method_signature, KlassHandle current_klass, bool check_access, TRAPS) { |
| 0 | 980 // normal interface method resolution |
| 981 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
| 982 | |
| 983 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier"); | |
| 984 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier"); | |
| 985 } | |
| 986 | |
| 987 // throws runtime exceptions | |
| 988 void LinkResolver::runtime_resolve_interface_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass, | |
| 989 Handle recv, KlassHandle recv_klass, bool check_null_and_abstract, TRAPS) { | |
| 990 // check if receiver exists | |
| 991 if (check_null_and_abstract && recv.is_null()) { | |
| 992 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 993 } | |
| 994 | |
| 995 // check if receiver klass implements the resolved interface | |
| 996 if (!recv_klass->is_subtype_of(resolved_klass())) { | |
|
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997 ResourceMark rm(THREAD); |
| 0 | 998 char buf[200]; |
| 999 jio_snprintf(buf, sizeof(buf), "Class %s does not implement the requested interface %s", | |
| 6983 | 1000 recv_klass()->external_name(), |
| 1001 resolved_klass()->external_name()); | |
| 0 | 1002 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
| 1003 } | |
| 1004 // do lookup based on receiver klass | |
| 1005 methodHandle sel_method; | |
| 1006 lookup_instance_method_in_klasses(sel_method, recv_klass, | |
|
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1007 resolved_method->name(), |
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1008 resolved_method->signature(), CHECK); |
| 0 | 1009 // check if method exists |
| 1010 if (sel_method.is_null()) { | |
| 1011 ResourceMark rm(THREAD); | |
| 1012 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
| 6983 | 1013 Method::name_and_sig_as_C_string(recv_klass(), |
| 0 | 1014 resolved_method->name(), |
| 1015 resolved_method->signature())); | |
| 1016 } | |
|
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1017 // check access |
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1018 if (sel_method->method_holder()->is_interface()) { |
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1019 // Method holder is an interface. Throw Illegal Access Error if sel_method |
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1020 // is neither public nor private. |
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1021 if (!(sel_method->is_public() || sel_method->is_private())) { |
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1022 ResourceMark rm(THREAD); |
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1023 THROW_MSG(vmSymbols::java_lang_IllegalAccessError(), |
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1024 Method::name_and_sig_as_C_string(recv_klass(), |
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1025 sel_method->name(), |
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1026 sel_method->signature())); |
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1027 } |
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1028 } |
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1029 else { |
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1030 // Method holder is a class. Throw Illegal Access Error if sel_method |
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1031 // is not public. |
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1032 if (!sel_method->is_public()) { |
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1033 ResourceMark rm(THREAD); |
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1034 THROW_MSG(vmSymbols::java_lang_IllegalAccessError(), |
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1035 Method::name_and_sig_as_C_string(recv_klass(), |
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1036 sel_method->name(), |
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1037 sel_method->signature())); |
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1038 } |
| 0 | 1039 } |
| 1040 // check if abstract | |
| 1041 if (check_null_and_abstract && sel_method->is_abstract()) { | |
| 1042 ResourceMark rm(THREAD); | |
| 1043 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
| 6983 | 1044 Method::name_and_sig_as_C_string(recv_klass(), |
| 0 | 1045 sel_method->name(), |
| 1046 sel_method->signature())); | |
| 1047 } | |
| 1048 // setup result | |
| 1049 result.set_interface(resolved_klass, recv_klass, resolved_method, sel_method, CHECK); | |
| 1050 } | |
| 1051 | |
| 1052 | |
| 1053 methodHandle LinkResolver::linktime_resolve_interface_method_or_null( | |
| 1054 KlassHandle resolved_klass, | |
|
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1055 Symbol* method_name, |
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1056 Symbol* method_signature, |
| 0 | 1057 KlassHandle current_klass, |
| 1058 bool check_access) { | |
| 1059 EXCEPTION_MARK; | |
| 1060 methodHandle method_result; | |
| 1061 linktime_resolve_interface_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD); | |
| 1062 if (HAS_PENDING_EXCEPTION) { | |
| 1063 CLEAR_PENDING_EXCEPTION; | |
| 1064 return methodHandle(); | |
| 1065 } else { | |
| 1066 return method_result; | |
| 1067 } | |
| 1068 } | |
| 1069 | |
| 1070 methodHandle LinkResolver::linktime_resolve_virtual_method_or_null( | |
| 1071 KlassHandle resolved_klass, | |
|
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1072 Symbol* method_name, |
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1073 Symbol* method_signature, |
| 0 | 1074 KlassHandle current_klass, |
| 1075 bool check_access) { | |
| 1076 EXCEPTION_MARK; | |
| 1077 methodHandle method_result; | |
| 1078 linktime_resolve_virtual_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD); | |
| 1079 if (HAS_PENDING_EXCEPTION) { | |
| 1080 CLEAR_PENDING_EXCEPTION; | |
| 1081 return methodHandle(); | |
| 1082 } else { | |
| 1083 return method_result; | |
| 1084 } | |
| 1085 } | |
| 1086 | |
| 1087 methodHandle LinkResolver::resolve_virtual_call_or_null( | |
| 1088 KlassHandle receiver_klass, | |
| 1089 KlassHandle resolved_klass, | |
|
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1090 Symbol* name, |
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1091 Symbol* signature, |
| 0 | 1092 KlassHandle current_klass) { |
| 1093 EXCEPTION_MARK; | |
| 1094 CallInfo info; | |
| 1095 resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
| 1096 if (HAS_PENDING_EXCEPTION) { | |
| 1097 CLEAR_PENDING_EXCEPTION; | |
| 1098 return methodHandle(); | |
| 1099 } | |
| 1100 return info.selected_method(); | |
| 1101 } | |
| 1102 | |
| 1103 methodHandle LinkResolver::resolve_interface_call_or_null( | |
| 1104 KlassHandle receiver_klass, | |
| 1105 KlassHandle resolved_klass, | |
|
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1106 Symbol* name, |
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1107 Symbol* signature, |
| 0 | 1108 KlassHandle current_klass) { |
| 1109 EXCEPTION_MARK; | |
| 1110 CallInfo info; | |
| 1111 resolve_interface_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
| 1112 if (HAS_PENDING_EXCEPTION) { | |
| 1113 CLEAR_PENDING_EXCEPTION; | |
| 1114 return methodHandle(); | |
| 1115 } | |
| 1116 return info.selected_method(); | |
| 1117 } | |
| 1118 | |
| 1119 int LinkResolver::resolve_virtual_vtable_index( | |
| 1120 KlassHandle receiver_klass, | |
| 1121 KlassHandle resolved_klass, | |
|
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1122 Symbol* name, |
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1123 Symbol* signature, |
| 0 | 1124 KlassHandle current_klass) { |
| 1125 EXCEPTION_MARK; | |
| 1126 CallInfo info; | |
| 1127 resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
| 1128 if (HAS_PENDING_EXCEPTION) { | |
| 1129 CLEAR_PENDING_EXCEPTION; | |
|
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1130 return Method::invalid_vtable_index; |
| 0 | 1131 } |
| 1132 return info.vtable_index(); | |
| 1133 } | |
| 1134 | |
| 1135 methodHandle LinkResolver::resolve_static_call_or_null( | |
| 1136 KlassHandle resolved_klass, | |
|
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1137 Symbol* name, |
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1138 Symbol* signature, |
| 0 | 1139 KlassHandle current_klass) { |
| 1140 EXCEPTION_MARK; | |
| 1141 CallInfo info; | |
| 1142 resolve_static_call(info, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
| 1143 if (HAS_PENDING_EXCEPTION) { | |
| 1144 CLEAR_PENDING_EXCEPTION; | |
| 1145 return methodHandle(); | |
| 1146 } | |
| 1147 return info.selected_method(); | |
| 1148 } | |
| 1149 | |
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1150 methodHandle LinkResolver::resolve_special_call_or_null(KlassHandle resolved_klass, Symbol* name, Symbol* signature, |
| 0 | 1151 KlassHandle current_klass) { |
| 1152 EXCEPTION_MARK; | |
| 1153 CallInfo info; | |
| 1154 resolve_special_call(info, resolved_klass, name, signature, current_klass, true, THREAD); | |
| 1155 if (HAS_PENDING_EXCEPTION) { | |
| 1156 CLEAR_PENDING_EXCEPTION; | |
| 1157 return methodHandle(); | |
| 1158 } | |
| 1159 return info.selected_method(); | |
| 1160 } | |
| 1161 | |
| 1162 | |
| 1163 | |
| 1164 //------------------------------------------------------------------------------------------------------------------------ | |
| 1165 // ConstantPool entries | |
| 1166 | |
| 1167 void LinkResolver::resolve_invoke(CallInfo& result, Handle recv, constantPoolHandle pool, int index, Bytecodes::Code byte, TRAPS) { | |
| 1168 switch (byte) { | |
| 1169 case Bytecodes::_invokestatic : resolve_invokestatic (result, pool, index, CHECK); break; | |
| 1170 case Bytecodes::_invokespecial : resolve_invokespecial (result, pool, index, CHECK); break; | |
| 1171 case Bytecodes::_invokevirtual : resolve_invokevirtual (result, recv, pool, index, CHECK); break; | |
|
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1172 case Bytecodes::_invokehandle : resolve_invokehandle (result, pool, index, CHECK); break; |
|
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1173 case Bytecodes::_invokedynamic : resolve_invokedynamic (result, pool, index, CHECK); break; |
| 0 | 1174 case Bytecodes::_invokeinterface: resolve_invokeinterface(result, recv, pool, index, CHECK); break; |
| 1175 } | |
| 1176 return; | |
| 1177 } | |
| 1178 | |
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1179 void LinkResolver::resolve_pool(KlassHandle& resolved_klass, Symbol*& method_name, Symbol*& method_signature, |
| 0 | 1180 KlassHandle& current_klass, constantPoolHandle pool, int index, TRAPS) { |
| 1181 // resolve klass | |
| 1182 resolve_klass(resolved_klass, pool, index, CHECK); | |
| 1183 | |
| 1184 // Get name, signature, and static klass | |
|
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1185 method_name = pool->name_ref_at(index); |
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1186 method_signature = pool->signature_ref_at(index); |
| 0 | 1187 current_klass = KlassHandle(THREAD, pool->pool_holder()); |
| 1188 } | |
| 1189 | |
| 1190 | |
| 1191 void LinkResolver::resolve_invokestatic(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { | |
| 1192 KlassHandle resolved_klass; | |
|
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1193 Symbol* method_name = NULL; |
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1194 Symbol* method_signature = NULL; |
| 0 | 1195 KlassHandle current_klass; |
| 1196 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
| 1197 resolve_static_call(result, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); | |
| 1198 } | |
| 1199 | |
| 1200 | |
| 1201 void LinkResolver::resolve_invokespecial(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { | |
| 1202 KlassHandle resolved_klass; | |
|
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1203 Symbol* method_name = NULL; |
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1204 Symbol* method_signature = NULL; |
| 0 | 1205 KlassHandle current_klass; |
| 1206 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
| 1207 resolve_special_call(result, resolved_klass, method_name, method_signature, current_klass, true, CHECK); | |
| 1208 } | |
| 1209 | |
| 1210 | |
| 1211 void LinkResolver::resolve_invokevirtual(CallInfo& result, Handle recv, | |
| 1212 constantPoolHandle pool, int index, | |
| 1213 TRAPS) { | |
| 1214 | |
| 1215 KlassHandle resolved_klass; | |
|
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1216 Symbol* method_name = NULL; |
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1217 Symbol* method_signature = NULL; |
| 0 | 1218 KlassHandle current_klass; |
| 1219 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
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1220 KlassHandle recvrKlass (THREAD, recv.is_null() ? (Klass*)NULL : recv->klass()); |
| 0 | 1221 resolve_virtual_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); |
| 1222 } | |
| 1223 | |
| 1224 | |
| 1225 void LinkResolver::resolve_invokeinterface(CallInfo& result, Handle recv, constantPoolHandle pool, int index, TRAPS) { | |
| 1226 KlassHandle resolved_klass; | |
|
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1227 Symbol* method_name = NULL; |
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1228 Symbol* method_signature = NULL; |
| 0 | 1229 KlassHandle current_klass; |
| 1230 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
|
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1231 KlassHandle recvrKlass (THREAD, recv.is_null() ? (Klass*)NULL : recv->klass()); |
| 0 | 1232 resolve_interface_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); |
| 1233 } | |
| 1234 | |
|
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1235 |
|
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1236 void LinkResolver::resolve_invokehandle(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { |
|
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1237 assert(EnableInvokeDynamic, ""); |
|
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1238 // This guy is reached from InterpreterRuntime::resolve_invokehandle. |
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1239 KlassHandle resolved_klass; |
|
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1240 Symbol* method_name = NULL; |
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1241 Symbol* method_signature = NULL; |
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1242 KlassHandle current_klass; |
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1243 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); |
| 9082 | 1244 if (TraceMethodHandles) { |
| 1245 ResourceMark rm(THREAD); | |
|
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1246 tty->print_cr("resolve_invokehandle %s %s", method_name->as_C_string(), method_signature->as_C_string()); |
| 9082 | 1247 } |
|
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1248 resolve_handle_call(result, resolved_klass, method_name, method_signature, current_klass, CHECK); |
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1249 } |
|
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1250 |
|
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1251 void LinkResolver::resolve_handle_call(CallInfo& result, KlassHandle resolved_klass, |
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1252 Symbol* method_name, Symbol* method_signature, |
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1253 KlassHandle current_klass, |
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1254 TRAPS) { |
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1255 // JSR 292: this must be an implicitly generated method MethodHandle.invokeExact(*...) or similar |
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1256 assert(resolved_klass() == SystemDictionary::MethodHandle_klass(), ""); |
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1257 assert(MethodHandles::is_signature_polymorphic_name(method_name), ""); |
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1258 methodHandle resolved_method; |
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1259 Handle resolved_appendix; |
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1260 Handle resolved_method_type; |
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1261 lookup_polymorphic_method(resolved_method, resolved_klass, |
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1262 method_name, method_signature, |
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1263 current_klass, &resolved_appendix, &resolved_method_type, CHECK); |
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1264 result.set_handle(resolved_method, resolved_appendix, resolved_method_type, CHECK); |
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1265 } |
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1266 |
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1267 |
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1268 void LinkResolver::resolve_invokedynamic(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { |
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1269 assert(EnableInvokeDynamic, ""); |
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1270 |
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1271 //resolve_pool(<resolved_klass>, method_name, method_signature, current_klass, pool, index, CHECK); |
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1272 Symbol* method_name = pool->name_ref_at(index); |
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1273 Symbol* method_signature = pool->signature_ref_at(index); |
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1274 KlassHandle current_klass = KlassHandle(THREAD, pool->pool_holder()); |
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1275 |
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1276 // Resolve the bootstrap specifier (BSM + optional arguments). |
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1277 Handle bootstrap_specifier; |
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1278 // Check if CallSite has been bound already: |
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1279 ConstantPoolCacheEntry* cpce = pool->invokedynamic_cp_cache_entry_at(index); |
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1280 if (cpce->is_f1_null()) { |
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1281 int pool_index = cpce->constant_pool_index(); |
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1282 oop bsm_info = pool->resolve_bootstrap_specifier_at(pool_index, CHECK); |
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1283 assert(bsm_info != NULL, ""); |
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1284 // FIXME: Cache this once per BootstrapMethods entry, not once per CONSTANT_InvokeDynamic. |
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1285 bootstrap_specifier = Handle(THREAD, bsm_info); |
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1286 } |
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1287 if (!cpce->is_f1_null()) { |
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1288 methodHandle method( THREAD, cpce->f1_as_method()); |
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1289 Handle appendix( THREAD, cpce->appendix_if_resolved(pool)); |
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1290 Handle method_type(THREAD, cpce->method_type_if_resolved(pool)); |
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1291 result.set_handle(method, appendix, method_type, CHECK); |
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1292 return; |
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1293 } |
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1294 |
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1295 if (TraceMethodHandles) { |
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1296 tty->print_cr("resolve_invokedynamic #%d %s %s", |
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1297 ConstantPool::decode_invokedynamic_index(index), |
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1298 method_name->as_C_string(), method_signature->as_C_string()); |
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1299 tty->print(" BSM info: "); bootstrap_specifier->print(); |
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1300 } |
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1301 |
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1302 resolve_dynamic_call(result, bootstrap_specifier, method_name, method_signature, current_klass, CHECK); |
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1303 } |
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1304 |
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1305 void LinkResolver::resolve_dynamic_call(CallInfo& result, |
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1306 Handle bootstrap_specifier, |
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1307 Symbol* method_name, Symbol* method_signature, |
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1308 KlassHandle current_klass, |
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1309 TRAPS) { |
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1310 // JSR 292: this must resolve to an implicitly generated method MH.linkToCallSite(*...) |
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1311 // The appendix argument is likely to be a freshly-created CallSite. |
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1312 Handle resolved_appendix; |
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1313 Handle resolved_method_type; |
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1314 methodHandle resolved_method = |
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1315 SystemDictionary::find_dynamic_call_site_invoker(current_klass, |
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1316 bootstrap_specifier, |
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1317 method_name, method_signature, |
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1318 &resolved_appendix, |
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1319 &resolved_method_type, |
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1320 THREAD); |
|
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1321 if (HAS_PENDING_EXCEPTION) { |
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1322 if (TraceMethodHandles) { |
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1323 tty->print_cr("invokedynamic throws BSME for "INTPTR_FORMAT, PENDING_EXCEPTION); |
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1324 PENDING_EXCEPTION->print(); |
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1325 } |
|
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1326 if (PENDING_EXCEPTION->is_a(SystemDictionary::BootstrapMethodError_klass())) { |
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1327 // throw these guys, since they are already wrapped |
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1328 return; |
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1329 } |
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1330 if (!PENDING_EXCEPTION->is_a(SystemDictionary::LinkageError_klass())) { |
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1331 // intercept only LinkageErrors which might have failed to wrap |
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1332 return; |
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1333 } |
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1334 // See the "Linking Exceptions" section for the invokedynamic instruction in the JVMS. |
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1335 Handle nested_exception(THREAD, PENDING_EXCEPTION); |
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1336 CLEAR_PENDING_EXCEPTION; |
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1337 THROW_CAUSE(vmSymbols::java_lang_BootstrapMethodError(), nested_exception) |
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1338 } |
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1339 result.set_handle(resolved_method, resolved_appendix, resolved_method_type, CHECK); |
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1340 } |
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1341 |
| 0 | 1342 //------------------------------------------------------------------------------------------------------------------------ |
| 1343 #ifndef PRODUCT | |
| 1344 | |
| 1345 void FieldAccessInfo::print() { | |
| 1346 ResourceMark rm; | |
| 1347 tty->print_cr("Field %s@%d", name()->as_C_string(), field_offset()); | |
| 1348 } | |
| 1349 | |
| 1350 #endif |