| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <jni.h> |
| #include <vector> |
| |
| #include "art_field-inl.h" |
| #include "class_linker-inl.h" |
| #include "common_compiler_test.h" |
| #include "mirror/field-inl.h" |
| #include "mirror/method.h" |
| #include "scoped_thread_state_change.h" |
| |
| namespace art { |
| |
| class ProxyTest : public CommonCompilerTest { |
| public: |
| // Generate a proxy class with the given name and interfaces. This is a simplification from what |
| // libcore does to fit to our test needs. We do not check for duplicated interfaces or methods and |
| // we do not declare exceptions. |
| mirror::Class* GenerateProxyClass(ScopedObjectAccess& soa, jobject jclass_loader, |
| const char* className, |
| const std::vector<mirror::Class*>& interfaces) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| mirror::Class* javaLangObject = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;"); |
| CHECK(javaLangObject != nullptr); |
| |
| jclass javaLangClass = soa.AddLocalReference<jclass>(mirror::Class::GetJavaLangClass()); |
| |
| // Builds the interfaces array. |
| jobjectArray proxyClassInterfaces = soa.Env()->NewObjectArray(interfaces.size(), javaLangClass, |
| nullptr); |
| soa.Self()->AssertNoPendingException(); |
| for (size_t i = 0; i < interfaces.size(); ++i) { |
| soa.Env()->SetObjectArrayElement(proxyClassInterfaces, i, |
| soa.AddLocalReference<jclass>(interfaces[i])); |
| } |
| |
| // Builds the method array. |
| jsize methods_count = 3; // Object.equals, Object.hashCode and Object.toString. |
| for (mirror::Class* interface : interfaces) { |
| methods_count += interface->NumVirtualMethods(); |
| } |
| jobjectArray proxyClassMethods = soa.Env()->NewObjectArray( |
| methods_count, soa.AddLocalReference<jclass>(mirror::Method::StaticClass()), nullptr); |
| soa.Self()->AssertNoPendingException(); |
| |
| jsize array_index = 0; |
| // Fill the method array |
| ArtMethod* method = javaLangObject->FindDeclaredVirtualMethod( |
| "equals", "(Ljava/lang/Object;)Z", sizeof(void*)); |
| CHECK(method != nullptr); |
| soa.Env()->SetObjectArrayElement( |
| proxyClassMethods, array_index++, soa.AddLocalReference<jobject>( |
| mirror::Method::CreateFromArtMethod(soa.Self(), method))); |
| method = javaLangObject->FindDeclaredVirtualMethod("hashCode", "()I", sizeof(void*)); |
| CHECK(method != nullptr); |
| soa.Env()->SetObjectArrayElement( |
| proxyClassMethods, array_index++, soa.AddLocalReference<jobject>( |
| mirror::Method::CreateFromArtMethod(soa.Self(), method))); |
| method = javaLangObject->FindDeclaredVirtualMethod( |
| "toString", "()Ljava/lang/String;", sizeof(void*)); |
| CHECK(method != nullptr); |
| soa.Env()->SetObjectArrayElement( |
| proxyClassMethods, array_index++, soa.AddLocalReference<jobject>( |
| mirror::Method::CreateFromArtMethod(soa.Self(), method))); |
| // Now adds all interfaces virtual methods. |
| for (mirror::Class* interface : interfaces) { |
| for (auto& m : interface->GetVirtualMethods(sizeof(void*))) { |
| soa.Env()->SetObjectArrayElement( |
| proxyClassMethods, array_index++, soa.AddLocalReference<jobject>( |
| mirror::Method::CreateFromArtMethod(soa.Self(), &m))); |
| } |
| } |
| CHECK_EQ(array_index, methods_count); |
| |
| // Builds an empty exception array. |
| jobjectArray proxyClassThrows = soa.Env()->NewObjectArray(0, javaLangClass, nullptr); |
| soa.Self()->AssertNoPendingException(); |
| |
| mirror::Class* proxyClass = class_linker_->CreateProxyClass( |
| soa, soa.Env()->NewStringUTF(className), proxyClassInterfaces, jclass_loader, |
| proxyClassMethods, proxyClassThrows); |
| soa.Self()->AssertNoPendingException(); |
| return proxyClass; |
| } |
| }; |
| |
| // Creates a proxy class and check ClassHelper works correctly. |
| TEST_F(ProxyTest, ProxyClassHelper) { |
| ScopedObjectAccess soa(Thread::Current()); |
| jobject jclass_loader = LoadDex("Interfaces"); |
| StackHandleScope<4> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| |
| Handle<mirror::Class> I(hs.NewHandle( |
| class_linker_->FindClass(soa.Self(), "LInterfaces$I;", class_loader))); |
| Handle<mirror::Class> J(hs.NewHandle( |
| class_linker_->FindClass(soa.Self(), "LInterfaces$J;", class_loader))); |
| ASSERT_TRUE(I.Get() != nullptr); |
| ASSERT_TRUE(J.Get() != nullptr); |
| |
| std::vector<mirror::Class*> interfaces; |
| interfaces.push_back(I.Get()); |
| interfaces.push_back(J.Get()); |
| Handle<mirror::Class> proxy_class(hs.NewHandle( |
| GenerateProxyClass(soa, jclass_loader, "$Proxy1234", interfaces))); |
| interfaces.clear(); // Don't least possibly stale objects in the array as good practice. |
| ASSERT_TRUE(proxy_class.Get() != nullptr); |
| ASSERT_TRUE(proxy_class->IsProxyClass()); |
| ASSERT_TRUE(proxy_class->IsInitialized()); |
| |
| EXPECT_EQ(2U, proxy_class->NumDirectInterfaces()); // Interfaces$I and Interfaces$J. |
| EXPECT_EQ(I.Get(), mirror::Class::GetDirectInterface(soa.Self(), proxy_class, 0)); |
| EXPECT_EQ(J.Get(), mirror::Class::GetDirectInterface(soa.Self(), proxy_class, 1)); |
| std::string temp; |
| const char* proxy_class_descriptor = proxy_class->GetDescriptor(&temp); |
| EXPECT_STREQ("L$Proxy1234;", proxy_class_descriptor); |
| EXPECT_EQ(nullptr, proxy_class->GetSourceFile()); |
| } |
| |
| // Creates a proxy class and check FieldHelper works correctly. |
| TEST_F(ProxyTest, ProxyFieldHelper) { |
| ScopedObjectAccess soa(Thread::Current()); |
| jobject jclass_loader = LoadDex("Interfaces"); |
| StackHandleScope<9> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| |
| Handle<mirror::Class> I(hs.NewHandle( |
| class_linker_->FindClass(soa.Self(), "LInterfaces$I;", class_loader))); |
| Handle<mirror::Class> J(hs.NewHandle( |
| class_linker_->FindClass(soa.Self(), "LInterfaces$J;", class_loader))); |
| ASSERT_TRUE(I.Get() != nullptr); |
| ASSERT_TRUE(J.Get() != nullptr); |
| |
| Handle<mirror::Class> proxyClass; |
| { |
| std::vector<mirror::Class*> interfaces; |
| interfaces.push_back(I.Get()); |
| interfaces.push_back(J.Get()); |
| proxyClass = hs.NewHandle(GenerateProxyClass(soa, jclass_loader, "$Proxy1234", interfaces)); |
| } |
| |
| ASSERT_TRUE(proxyClass.Get() != nullptr); |
| ASSERT_TRUE(proxyClass->IsProxyClass()); |
| ASSERT_TRUE(proxyClass->IsInitialized()); |
| |
| ArtField* instance_fields = proxyClass->GetIFields(); |
| EXPECT_TRUE(instance_fields == nullptr); |
| |
| ArtField* static_fields = proxyClass->GetSFields(); |
| ASSERT_TRUE(static_fields != nullptr); |
| ASSERT_EQ(2u, proxyClass->NumStaticFields()); |
| |
| Handle<mirror::Class> interfacesFieldClass( |
| hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Class;"))); |
| ASSERT_TRUE(interfacesFieldClass.Get() != nullptr); |
| Handle<mirror::Class> throwsFieldClass( |
| hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "[[Ljava/lang/Class;"))); |
| ASSERT_TRUE(throwsFieldClass.Get() != nullptr); |
| |
| // Test "Class[] interfaces" field. |
| ArtField* field = &static_fields[0]; |
| EXPECT_STREQ("interfaces", field->GetName()); |
| EXPECT_STREQ("[Ljava/lang/Class;", field->GetTypeDescriptor()); |
| EXPECT_EQ(interfacesFieldClass.Get(), field->GetType<true>()); |
| std::string temp; |
| EXPECT_STREQ("L$Proxy1234;", field->GetDeclaringClass()->GetDescriptor(&temp)); |
| EXPECT_FALSE(field->IsPrimitiveType()); |
| |
| // Test "Class[][] throws" field. |
| field = &static_fields[1]; |
| EXPECT_STREQ("throws", field->GetName()); |
| EXPECT_STREQ("[[Ljava/lang/Class;", field->GetTypeDescriptor()); |
| EXPECT_EQ(throwsFieldClass.Get(), field->GetType<true>()); |
| EXPECT_STREQ("L$Proxy1234;", field->GetDeclaringClass()->GetDescriptor(&temp)); |
| EXPECT_FALSE(field->IsPrimitiveType()); |
| } |
| |
| // Creates two proxy classes and check the art/mirror fields of their static fields. |
| TEST_F(ProxyTest, CheckArtMirrorFieldsOfProxyStaticFields) { |
| ScopedObjectAccess soa(Thread::Current()); |
| jobject jclass_loader = LoadDex("Interfaces"); |
| StackHandleScope<7> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| |
| Handle<mirror::Class> proxyClass0; |
| Handle<mirror::Class> proxyClass1; |
| { |
| std::vector<mirror::Class*> interfaces; |
| proxyClass0 = hs.NewHandle(GenerateProxyClass(soa, jclass_loader, "$Proxy0", interfaces)); |
| proxyClass1 = hs.NewHandle(GenerateProxyClass(soa, jclass_loader, "$Proxy1", interfaces)); |
| } |
| |
| ASSERT_TRUE(proxyClass0.Get() != nullptr); |
| ASSERT_TRUE(proxyClass0->IsProxyClass()); |
| ASSERT_TRUE(proxyClass0->IsInitialized()); |
| ASSERT_TRUE(proxyClass1.Get() != nullptr); |
| ASSERT_TRUE(proxyClass1->IsProxyClass()); |
| ASSERT_TRUE(proxyClass1->IsInitialized()); |
| |
| ArtField* static_fields0 = proxyClass0->GetSFields(); |
| ASSERT_TRUE(static_fields0 != nullptr); |
| ASSERT_EQ(2u, proxyClass0->NumStaticFields()); |
| ArtField* static_fields1 = proxyClass1->GetSFields(); |
| ASSERT_TRUE(static_fields1 != nullptr); |
| ASSERT_EQ(2u, proxyClass1->NumStaticFields()); |
| |
| EXPECT_EQ(static_fields0[0].GetDeclaringClass(), proxyClass0.Get()); |
| EXPECT_EQ(static_fields0[1].GetDeclaringClass(), proxyClass0.Get()); |
| EXPECT_EQ(static_fields1[0].GetDeclaringClass(), proxyClass1.Get()); |
| EXPECT_EQ(static_fields1[1].GetDeclaringClass(), proxyClass1.Get()); |
| |
| Handle<mirror::Field> field00 = |
| hs.NewHandle(mirror::Field::CreateFromArtField(soa.Self(), &static_fields0[0], true)); |
| Handle<mirror::Field> field01 = |
| hs.NewHandle(mirror::Field::CreateFromArtField(soa.Self(), &static_fields0[1], true)); |
| Handle<mirror::Field> field10 = |
| hs.NewHandle(mirror::Field::CreateFromArtField(soa.Self(), &static_fields1[0], true)); |
| Handle<mirror::Field> field11 = |
| hs.NewHandle(mirror::Field::CreateFromArtField(soa.Self(), &static_fields1[1], true)); |
| EXPECT_EQ(field00->GetArtField(), &static_fields0[0]); |
| EXPECT_EQ(field01->GetArtField(), &static_fields0[1]); |
| EXPECT_EQ(field10->GetArtField(), &static_fields1[0]); |
| EXPECT_EQ(field11->GetArtField(), &static_fields1[1]); |
| } |
| |
| } // namespace art |