/* * Copyright (C) 2018 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. */ import java.lang.reflect.Method; import dalvik.system.AnnotatedStackTraceElement; public class Main { public static void main(String args[]) throws Exception { Class vmStack = Class.forName("dalvik.system.VMStack"); Method getAnnotatedThreadStackTrace = vmStack.getDeclaredMethod("getAnnotatedThreadStackTrace", Thread.class); Object[] annotatedStackTrace = (Object[]) getAnnotatedThreadStackTrace.invoke(null, Thread.currentThread()); AnnotatedStackTraceElement annotatedElement = (AnnotatedStackTraceElement) annotatedStackTrace[0]; // This used to fail an assertion that the AnnotatedStackTraceElement.class // is at least initializing (i.e. initializing, initialized or resolved-erroneous). // Note: We cannot use reflection for this test because getDeclaredMethod() would // initialize the class and hide the failure. annotatedElement.getStackTraceElement(); System.out.println("passed"); } }