1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <pthread.h> 18 19 #include <cstdio> 20 #include <iostream> 21 #include <vector> 22 23 #include "android-base/macros.h" 24 25 #include "jni.h" 26 #include "jvmti.h" 27 #include "scoped_local_ref.h" 28 #include "scoped_utf_chars.h" 29 30 // Test infrastructure 31 #include "jni_helper.h" 32 #include "test_env.h" 33 34 namespace art { 35 namespace Test907GetLoadedClasses { 36 37 static jstring GetClassName(JNIEnv* jni_env, jclass cls) { 38 ScopedLocalRef<jclass> class_class(jni_env, jni_env->GetObjectClass(cls)); 39 jmethodID mid = jni_env->GetMethodID(class_class.get(), "getName", "()Ljava/lang/String;"); 40 return reinterpret_cast<jstring>(jni_env->CallObjectMethod(cls, mid)); 41 } 42 43 extern "C" JNIEXPORT jobjectArray JNICALL Java_art_Test907_getLoadedClasses( 44 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED) { 45 jint count = -1; 46 jclass* classes = nullptr; 47 jvmtiError result = jvmti_env->GetLoadedClasses(&count, &classes); 48 if (result != JVMTI_ERROR_NONE) { 49 char* err; 50 jvmti_env->GetErrorName(result, &err); 51 printf("Failure running GetLoadedClasses: %s\n", err); 52 jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(err)); 53 return nullptr; 54 } 55 56 auto callback = [&](jint i) { 57 jstring class_name = GetClassName(env, classes[i]); 58 env->DeleteLocalRef(classes[i]); 59 return class_name; 60 }; 61 jobjectArray ret = CreateObjectArray(env, count, "java/lang/String", callback); 62 63 // Need to Deallocate. 64 jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(classes)); 65 66 return ret; 67 } 68 69 } // namespace Test907GetLoadedClasses 70 } // namespace art 71
