Priority_Inversion.java revision 0
/*
* Copyright 1998-1999 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/*
* @test
* @bug 4146462
* @summary Priority inversion prevents call to the genSeed method from
* returning
*
* if the test returns, then it passed.
* if the test never returns (hangs forever), then it failed.
*/
public class Priority_Inversion {
int deltaPriority = 1;
try {
}
catch (NumberFormatException nfe) {
}
}
}
}
class RandomTest extends Thread {
public synchronized void run() {
// The following should take over a second
}
void invertPriority() {
synchronized(this) {
}
}
}
class InvertTest extends Thread {
private int delta;
private RandomTest rand;
}
public void run() {
try {
sleep(500);
}
catch (InterruptedException ie) { }
}
}