1 /*
2  * Copyright (C) 2018 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 import java.lang.reflect.Method;
18 import dalvik.system.AnnotatedStackTraceElement;
19 
20 public class Main {
main(String args[])21     public static void main(String args[]) throws Exception {
22         Class<?> vmStack = Class.forName("dalvik.system.VMStack");
23         Method getAnnotatedThreadStackTrace =
24                 vmStack.getDeclaredMethod("getAnnotatedThreadStackTrace", Thread.class);
25         Object[] annotatedStackTrace =
26                 (Object[]) getAnnotatedThreadStackTrace.invoke(null, Thread.currentThread());
27         AnnotatedStackTraceElement annotatedElement =
28             (AnnotatedStackTraceElement) annotatedStackTrace[0];
29         // This used to fail an assertion that the AnnotatedStackTraceElement.class
30         // is at least initializing (i.e. initializing, initialized or resolved-erroneous).
31         // Note: We cannot use reflection for this test because getDeclaredMethod() would
32         // initialize the class and hide the failure.
33         annotatedElement.getStackTraceElement();
34 
35         System.out.println("passed");
36     }
37 }
38