xref: /aosp_15_r20/art/test/679-locks/src/Main.java (revision 795d594fd825385562da6b089ea9b2033f3abf5a)
1*795d594fSAndroid Build Coastguard Worker /*
2*795d594fSAndroid Build Coastguard Worker  * Copyright (C) 2018 The Android Open Source Project
3*795d594fSAndroid Build Coastguard Worker  *
4*795d594fSAndroid Build Coastguard Worker  * Licensed under the Apache License, Version 2.0 (the "License");
5*795d594fSAndroid Build Coastguard Worker  * you may not use this file except in compliance with the License.
6*795d594fSAndroid Build Coastguard Worker  * You may obtain a copy of the License at
7*795d594fSAndroid Build Coastguard Worker  *
8*795d594fSAndroid Build Coastguard Worker  *      http://www.apache.org/licenses/LICENSE-2.0
9*795d594fSAndroid Build Coastguard Worker  *
10*795d594fSAndroid Build Coastguard Worker  * Unless required by applicable law or agreed to in writing, software
11*795d594fSAndroid Build Coastguard Worker  * distributed under the License is distributed on an "AS IS" BASIS,
12*795d594fSAndroid Build Coastguard Worker  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*795d594fSAndroid Build Coastguard Worker  * See the License for the specific language governing permissions and
14*795d594fSAndroid Build Coastguard Worker  * limitations under the License.
15*795d594fSAndroid Build Coastguard Worker  */
16*795d594fSAndroid Build Coastguard Worker 
17*795d594fSAndroid Build Coastguard Worker class NotLoaded {
foo()18*795d594fSAndroid Build Coastguard Worker   public void foo() {}
19*795d594fSAndroid Build Coastguard Worker }
20*795d594fSAndroid Build Coastguard Worker 
21*795d594fSAndroid Build Coastguard Worker public class Main {
main(String[] args)22*795d594fSAndroid Build Coastguard Worker     public static void main(String[] args) throws Exception {
23*795d594fSAndroid Build Coastguard Worker         System.loadLibrary(args[0]);
24*795d594fSAndroid Build Coastguard Worker         TestSync.run();
25*795d594fSAndroid Build Coastguard Worker     }
26*795d594fSAndroid Build Coastguard Worker 
run()27*795d594fSAndroid Build Coastguard Worker     public static void run() {
28*795d594fSAndroid Build Coastguard Worker         testVisitLocks();
29*795d594fSAndroid Build Coastguard Worker     }
30*795d594fSAndroid Build Coastguard Worker 
31*795d594fSAndroid Build Coastguard Worker     static Object myStatic;
32*795d594fSAndroid Build Coastguard Worker 
33*795d594fSAndroid Build Coastguard Worker     // Note: declared in 167-visit-locks.
testVisitLocks()34*795d594fSAndroid Build Coastguard Worker     public static native void testVisitLocks();
35*795d594fSAndroid Build Coastguard Worker }
36*795d594fSAndroid Build Coastguard Worker 
37*795d594fSAndroid Build Coastguard Worker // 167-visit-locks/visit-locks.cc looks at the locks held in TestSync.run().
38*795d594fSAndroid Build Coastguard Worker class TestSync {
run()39*795d594fSAndroid Build Coastguard Worker   public static void run() {
40*795d594fSAndroid Build Coastguard Worker     Object o = Main.myStatic;
41*795d594fSAndroid Build Coastguard Worker     if (o != null) {
42*795d594fSAndroid Build Coastguard Worker       if (o instanceof NotLoaded) {
43*795d594fSAndroid Build Coastguard Worker         ((NotLoaded)o).foo();
44*795d594fSAndroid Build Coastguard Worker       }
45*795d594fSAndroid Build Coastguard Worker     }
46*795d594fSAndroid Build Coastguard Worker     synchronized ("MyString") {
47*795d594fSAndroid Build Coastguard Worker       Main.testVisitLocks();
48*795d594fSAndroid Build Coastguard Worker     }
49*795d594fSAndroid Build Coastguard Worker   }
50*795d594fSAndroid Build Coastguard Worker }
51