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 class NotLoaded {
foo()18   public void foo() {}
19 }
20 
21 public class Main {
main(String[] args)22     public static void main(String[] args) throws Exception {
23         System.loadLibrary(args[0]);
24         TestSync.run();
25     }
26 
run()27     public static void run() {
28         testVisitLocks();
29     }
30 
31     static Object myStatic;
32 
33     // Note: declared in 167-visit-locks.
testVisitLocks()34     public static native void testVisitLocks();
35 }
36 
37 // 167-visit-locks/visit-locks.cc looks at the locks held in TestSync.run().
38 class TestSync {
run()39   public static void run() {
40     Object o = Main.myStatic;
41     if (o != null) {
42       if (o instanceof NotLoaded) {
43         ((NotLoaded)o).foo();
44       }
45     }
46     synchronized ("MyString") {
47       Main.testVisitLocks();
48     }
49   }
50 }
51