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/*
* Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 6224859
* @summary JDWP: Mixing application suspends and debugger suspends can cause hangs
* @comment converted from test/jdk/com/sun/jdi/MixedSuspendTest.sh
*
* @library /test/lib
* @run main/othervm MixedSuspendTest
*/
import lib.jdb.JdbCommand;
import lib.jdb.JdbTest;
class MixedSuspendTarg extends Thread {
static volatile boolean started = true;
static String lock = "startLock";
public static void main(String[] args){
System.out.println("Howdy from MixedSuspendTarg");
MixedSuspendTarg mytarg = new MixedSuspendTarg();
synchronized(lock) {
mytarg.start();
try {
lock.wait();
} catch(InterruptedException ee) {
}
}
mytarg.suspend();
bkpt();
System.out.println("Debuggee: resuming thread");
// If the bug occurs, this resume hangs in the back-end
mytarg.resume();
System.out.println("Debuggee: resumed thread");
synchronized(lock) {
started = false;
}
System.out.println("Debuggee: exitting, started = " + started);
}
public void run() {
synchronized(lock) {
lock.notifyAll();
}
while (true) {
synchronized(lock) {
if (!started) {
break;
}
int i = 0;
}
}
System.out.println("Debuggee: end of thread");
}
static void bkpt() {
//System.out.println("bkpt reached, thread = " + this.getName());
int i = 0; // @1 breakpoint
}
}
public class MixedSuspendTest extends JdbTest {
public static void main(String argv[]) {
new MixedSuspendTest().run();
}
private MixedSuspendTest() {
super(DEBUGGEE_CLASS);
}
private static final String DEBUGGEE_CLASS = MixedSuspendTarg.class.getName();
@Override
protected void runCases() {
setBreakpointsFromTestSource("MixedSuspendTest.java", 1);
jdb.command(JdbCommand.run());
jdb.command(JdbCommand.cont().allowExit());
// This test fails by timing out.
}
}
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