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.ref.WeakReference;
18 
19 /**
20  * References to objects to include in a heap dump for testing purposes.
21  * An instance of DumpedStuff will be included in a heap dump taken for
22  * testing purposes. Instances referenced as fields of DumpedStuff can be
23  * accessed easily from the tests using TestDump.getDumpedAhatInstance.
24  */
25 public class DumpedStuff {
26   public static class Finalizable {
27     static int count = 0;
28 
Finalizable()29     public Finalizable() {
30       count++;
31     }
32 
33     @Override
finalize()34     protected void finalize() {
35       count--;
36     }
37   }
38 
39   public WeakReference aWeakRefToFinalizable = new WeakReference(new Finalizable());
40 }
41