1 /*
2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.
8  *
9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 
24 import java.util.Map;
25 import java.util.logging.Level;
26 import java.util.logging.Logger;
27 import jdk.jshell.JShell;
28 import jdk.jshell.execution.JdiExecutionControlProvider;
29 import jdk.jshell.execution.RemoteExecutionControl;
30 import jdk.jshell.spi.ExecutionControlProvider;
31 
32 /**
33  * Hang for three minutes (long enough to cause a timeout).
34  */
35 class HangingRemoteAgent extends RemoteExecutionControl {
36 
37     private static final long DELAY = 4000L;
38     private static final int TIMEOUT = 2000;
39     private static final boolean INFRA_VERIFY = false;
40 
main(String[] args)41     public static void main(String[] args) throws Exception {
42         if (INFRA_VERIFY) {
43             RemoteExecutionControl.main(args);
44         } else {
45             long end = System.currentTimeMillis() + DELAY;
46             long remaining;
47             while ((remaining = end - System.currentTimeMillis()) > 0L) {
48                 try {
49                     Thread.sleep(remaining);
50                 } catch (InterruptedException ex) {
51                     // loop again
52                 }
53             }
54         }
55     }
56 
state(boolean isLaunch, String host)57     static JShell state(boolean isLaunch, String host) {
58         ExecutionControlProvider ecp = new JdiExecutionControlProvider();
59         Map<String,String> pm = ecp.defaultParameters();
60         pm.put(JdiExecutionControlProvider.PARAM_REMOTE_AGENT, HangingRemoteAgent.class.getName());
61         pm.put(JdiExecutionControlProvider.PARAM_HOST_NAME, host==null? "" : host);
62         pm.put(JdiExecutionControlProvider.PARAM_LAUNCH, ""+isLaunch);
63         pm.put(JdiExecutionControlProvider.PARAM_TIMEOUT, ""+TIMEOUT);
64         // turn on logging of launch failures
65         Logger.getLogger("jdk.jshell.execution").setLevel(Level.ALL);
66         return JShell.builder()
67                 .executionEngine(ecp, pm)
68                 .build();
69     }
70 
71 }
72