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 com.sun.management.HotSpotDiagnosticMXBean;
18 import java.io.IOException;
19 import java.lang.management.ManagementFactory;
20 import javax.management.MBeanServer;
21 
22 /**
23  * Program used to create an RI heap dump for test purposes.
24  */
25 public class Main {
26   public static DumpedStuff stuff;
27 
main(String[] args)28   public static void main(String[] args) throws IOException {
29     if (args.length < 1) {
30       System.err.println("no output file specified");
31       return;
32     }
33     String file = args[0];
34 
35     stuff = new DumpedStuff();
36 
37     // Take a heap dump of this process.
38     MBeanServer server = ManagementFactory.getPlatformMBeanServer();
39     HotSpotDiagnosticMXBean bean = ManagementFactory.newPlatformMXBeanProxy(server,
40         "com.sun.management:type=HotSpotDiagnostic", HotSpotDiagnosticMXBean.class);
41     bean.dumpHeap(file, false);
42   }
43 }
44