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-rw-r--r--runtime/native/java_lang_Class.cc52
1 files changed, 45 insertions, 7 deletions
diff --git a/runtime/native/java_lang_Class.cc b/runtime/native/java_lang_Class.cc
index c8431c0519..381dc7beb0 100644
--- a/runtime/native/java_lang_Class.cc
+++ b/runtime/native/java_lang_Class.cc
@@ -108,10 +108,50 @@ static jstring Class_getNameNative(JNIEnv* env, jobject javaThis) {
return soa.AddLocalReference<jstring>(mirror::Class::ComputeName(hs.NewHandle(c)));
}
-static jobjectArray Class_getProxyInterfaces(JNIEnv* env, jobject javaThis) {
+// TODO: Move this to mirror::Class ? Other mirror types that commonly appear
+// as arrays have a GetArrayClass() method.
+static ObjPtr<mirror::Class> GetClassArrayClass(Thread* self)
+ REQUIRES_SHARED(Locks::mutator_lock_) {
+ ObjPtr<mirror::Class> class_class = mirror::Class::GetJavaLangClass();
+ return Runtime::Current()->GetClassLinker()->FindArrayClass(self, &class_class);
+}
+
+static jobjectArray Class_getInterfacesInternal(JNIEnv* env, jobject javaThis) {
ScopedFastNativeObjectAccess soa(env);
- ObjPtr<mirror::Class> c = DecodeClass(soa, javaThis);
- return soa.AddLocalReference<jobjectArray>(c->GetInterfaces()->Clone(soa.Self()));
+ StackHandleScope<4> hs(soa.Self());
+ Handle<mirror::Class> klass = hs.NewHandle(DecodeClass(soa, javaThis));
+
+ if (klass->IsProxyClass()) {
+ return soa.AddLocalReference<jobjectArray>(klass->GetProxyInterfaces()->Clone(soa.Self()));
+ }
+
+ const DexFile::TypeList* iface_list = klass->GetInterfaceTypeList();
+ if (iface_list == nullptr) {
+ return nullptr;
+ }
+
+ const uint32_t num_ifaces = iface_list->Size();
+ Handle<mirror::Class> class_array_class = hs.NewHandle(GetClassArrayClass(soa.Self()));
+ Handle<mirror::ObjectArray<mirror::Class>> ifaces = hs.NewHandle(
+ mirror::ObjectArray<mirror::Class>::Alloc(soa.Self(), class_array_class.Get(), num_ifaces));
+ if (ifaces.IsNull()) {
+ DCHECK(soa.Self()->IsExceptionPending());
+ return nullptr;
+ }
+
+ // Check that we aren't in an active transaction, we call SetWithoutChecks
+ // with kActiveTransaction == false.
+ DCHECK(!Runtime::Current()->IsActiveTransaction());
+
+ MutableHandle<mirror::Class> interface(hs.NewHandle<mirror::Class>(nullptr));
+ for (uint32_t i = 0; i < num_ifaces; ++i) {
+ const dex::TypeIndex type_idx = iface_list->GetTypeItem(i).type_idx_;
+ interface.Assign(ClassLinker::LookupResolvedType(
+ type_idx, klass->GetDexCache(), klass->GetClassLoader()));
+ ifaces->SetWithoutChecks<false>(i, interface.Get());
+ }
+
+ return soa.AddLocalReference<jobjectArray>(ifaces.Get());
}
static mirror::ObjectArray<mirror::Field>* GetDeclaredFields(
@@ -501,9 +541,7 @@ static jobjectArray Class_getDeclaredClasses(JNIEnv* env, jobject javaThis) {
// Pending exception from GetDeclaredClasses.
return nullptr;
}
- ObjPtr<mirror::Class> class_class = mirror::Class::GetJavaLangClass();
- ObjPtr<mirror::Class> class_array_class =
- Runtime::Current()->GetClassLinker()->FindArrayClass(soa.Self(), &class_class);
+ ObjPtr<mirror::Class> class_array_class = GetClassArrayClass(soa.Self());
if (class_array_class == nullptr) {
return nullptr;
}
@@ -736,8 +774,8 @@ static JNINativeMethod gMethods[] = {
FAST_NATIVE_METHOD(Class, getEnclosingMethodNative, "()Ljava/lang/reflect/Method;"),
FAST_NATIVE_METHOD(Class, getInnerClassFlags, "(I)I"),
FAST_NATIVE_METHOD(Class, getInnerClassName, "()Ljava/lang/String;"),
+ FAST_NATIVE_METHOD(Class, getInterfacesInternal, "()[Ljava/lang/Class;"),
FAST_NATIVE_METHOD(Class, getNameNative, "()Ljava/lang/String;"),
- FAST_NATIVE_METHOD(Class, getProxyInterfaces, "()[Ljava/lang/Class;"),
FAST_NATIVE_METHOD(Class, getPublicDeclaredFields, "()[Ljava/lang/reflect/Field;"),
FAST_NATIVE_METHOD(Class, getSignatureAnnotation, "()[Ljava/lang/String;"),
FAST_NATIVE_METHOD(Class, isAnonymousClass, "()Z"),