MixedSuspendTest.sh revision 17113:d17577d4839b 
1#!/bin/sh
2
3#
4# Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
5# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6#
7# This code is free software; you can redistribute it and/or modify it
8# under the terms of the GNU General Public License version 2 only, as
9# published by the Free Software Foundation.
10#
11# This code is distributed in the hope that it will be useful, but WITHOUT
12# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14# version 2 for more details (a copy is included in the LICENSE file that
15# accompanied this code).
16#
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18# 2 along with this work; if not, write to the Free Software Foundation,
19# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20#
21# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22# or visit www.oracle.com if you need additional information or have any
23# questions.
24#
25
26# @test
27# @bug 6224859
28# @key intermittent
29# @summary JDWP: Mixing application suspends and debugger suspends can cause hangs
30# @author Jim Holmlund
31#
32# @run build TestScaffold VMConnection TargetListener TargetAdapter
33# @run shell MixedSuspendTest.sh
34
35classname=MixedSuspendTarg
36
37createJavaFile()
38{
39    cat <<EOF > $classname.java.1
40
41import java.util.*;
42
43public class $classname extends Thread {
44
45    static volatile boolean started = true;
46    static String lock = "startLock";
47
48    public static void main(String[] args){
49        System.out.println("Howdy from MixedSuspendTarg");
50
51        MixedSuspendTarg mytarg = new MixedSuspendTarg();
52
53        synchronized(lock) {
54            mytarg.start();
55            try {
56                lock.wait();
57            } catch(InterruptedException ee) {
58            }
59        }
60        mytarg.suspend();
61        bkpt();
62        System.out.println("Debuggee: resuming thread");
63
64        // If the bug occurs, this resume hangs in the back-end
65        mytarg.resume();
66        System.out.println("Debuggee: resumed thread");
67        synchronized(lock) {
68            started = false;
69        }
70        System.out.println("Debuggee: exitting, started = " + started);
71    }
72
73    public void run() {
74        synchronized(lock) {
75            lock.notifyAll();
76        }
77        while (true) {
78            synchronized(lock) {
79                if (!started) {
80                    break;
81                }
82                int i = 0;
83            }
84        }
85
86        System.out.println("Debuggee: end of thread");
87    }
88
89    static void bkpt() {
90        //System.out.println("bkpt reached, thread = " + this.getName());
91        int i = 0;   // @1 breakpoint
92    }
93}
94
95EOF
96}
97
98dojdbCmds()
99{
100    setBkpts @1
101    runToBkpt @1
102    cmd allowExit cont
103}
104
105
106mysetup()
107{
108    if [ -z "$TESTSRC" ] ; then
109        TESTSRC=.
110    fi
111
112    for ii in . $TESTSRC $TESTSRC/.. ; do
113        if [ -r "$ii/ShellScaffold.sh" ] ; then
114            . $ii/ShellScaffold.sh
115            break
116        fi
117    done
118}
119
120# You could replace this next line with the contents
121# of ShellScaffold.sh and this script will run just the same.
122mysetup
123
124runit
125## This test fails by timing out.
126pass
127