| /* |
| * 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 "common_runtime_test.h" |
| #include "field_helper.h" |
| #include "mirror/art_field-inl.h" |
| #include "scoped_thread_state_change.h" |
| |
| namespace art { |
| |
| class ProxyTest : public CommonRuntimeTest { |
| 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) { |
| mirror::ObjectArray<mirror::ArtMethod>* virtual_methods = interface->GetVirtualMethods(); |
| methods_count += (virtual_methods == nullptr) ? 0 : virtual_methods->GetLength(); |
| } |
| jclass javaLangReflectArtMethod = |
| soa.AddLocalReference<jclass>(mirror::ArtMethod::GetJavaLangReflectArtMethod()); |
| jobjectArray proxyClassMethods = soa.Env()->NewObjectArray(methods_count, |
| javaLangReflectArtMethod, nullptr); |
| soa.Self()->AssertNoPendingException(); |
| |
| // Fill the method array |
| mirror::ArtMethod* equalsMethod = javaLangObject->FindDeclaredVirtualMethod("equals", |
| "(Ljava/lang/Object;)Z"); |
| mirror::ArtMethod* hashCodeMethod = javaLangObject->FindDeclaredVirtualMethod("hashCode", |
| "()I"); |
| mirror::ArtMethod* toStringMethod = javaLangObject->FindDeclaredVirtualMethod("toString", |
| "()Ljava/lang/String;"); |
| CHECK(equalsMethod != nullptr); |
| CHECK(hashCodeMethod != nullptr); |
| CHECK(toStringMethod != nullptr); |
| |
| jsize array_index = 0; |
| // Adds Object methods. |
| soa.Env()->SetObjectArrayElement(proxyClassMethods, array_index++, |
| soa.AddLocalReference<jobject>(equalsMethod)); |
| soa.Env()->SetObjectArrayElement(proxyClassMethods, array_index++, |
| soa.AddLocalReference<jobject>(hashCodeMethod)); |
| soa.Env()->SetObjectArrayElement(proxyClassMethods, array_index++, |
| soa.AddLocalReference<jobject>(toStringMethod)); |
| |
| // Now adds all interfaces virtual methods. |
| for (mirror::Class* interface : interfaces) { |
| mirror::ObjectArray<mirror::ArtMethod>* virtual_methods = interface->GetVirtualMethods(); |
| if (virtual_methods != nullptr) { |
| for (int32_t mth_index = 0; mth_index < virtual_methods->GetLength(); ++mth_index) { |
| mirror::ArtMethod* method = virtual_methods->Get(mth_index); |
| soa.Env()->SetObjectArrayElement(proxyClassMethods, array_index++, |
| soa.AddLocalReference<jobject>(method)); |
| } |
| } |
| } |
| 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; |
| } |
| |
| protected: |
| void SetUpRuntimeOptions(RuntimeOptions *options) OVERRIDE { |
| options->push_back(std::make_pair(StringPrintf("-Ximage:%s", GetLibCoreOatFileName().c_str()), |
| nullptr)); |
| } |
| }; |
| |
| // 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, "$Proxy1234", interfaces)); |
| } |
| |
| ASSERT_TRUE(proxyClass.Get() != nullptr); |
| ASSERT_TRUE(proxyClass->IsProxyClass()); |
| ASSERT_TRUE(proxyClass->IsInitialized()); |
| |
| Handle<mirror::ObjectArray<mirror::ArtField>> instance_fields( |
| hs.NewHandle(proxyClass->GetIFields())); |
| EXPECT_TRUE(instance_fields.Get() == nullptr); |
| |
| Handle<mirror::ObjectArray<mirror::ArtField>> static_fields( |
| hs.NewHandle(proxyClass->GetSFields())); |
| ASSERT_TRUE(static_fields.Get() != nullptr); |
| ASSERT_EQ(2, static_fields->GetLength()); |
| |
| Handle<mirror::Class> interfacesFieldClass( |
| hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Class;"))); |
| ASSERT_TRUE(interfacesFieldClass.Get() != nullptr); |
| Handle<mirror::Class> throwsFieldClass( |
| hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "[[Ljava/lang/Class;"))); |
| ASSERT_TRUE(throwsFieldClass.Get() != nullptr); |
| |
| // Test "Class[] interfaces" field. |
| FieldHelper fh(hs.NewHandle(static_fields->Get(0))); |
| EXPECT_EQ("interfaces", std::string(fh.GetField()->GetName())); |
| EXPECT_EQ("[Ljava/lang/Class;", std::string(fh.GetField()->GetTypeDescriptor())); |
| EXPECT_EQ(interfacesFieldClass.Get(), fh.GetType()); |
| EXPECT_EQ("L$Proxy1234;", std::string(fh.GetDeclaringClassDescriptor())); |
| EXPECT_FALSE(fh.GetField()->IsPrimitiveType()); |
| |
| // Test "Class[][] throws" field. |
| fh.ChangeField(static_fields->Get(1)); |
| EXPECT_EQ("throws", std::string(fh.GetField()->GetName())); |
| EXPECT_EQ("[[Ljava/lang/Class;", std::string(fh.GetField()->GetTypeDescriptor())); |
| EXPECT_EQ(throwsFieldClass.Get(), fh.GetType()); |
| EXPECT_EQ("L$Proxy1234;", std::string(fh.GetDeclaringClassDescriptor())); |
| EXPECT_FALSE(fh.GetField()->IsPrimitiveType()); |
| } |
| |
| } // namespace art |