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 
  25 /*
  26  * @test
  27  * @bug     5086470
  28  * @key intermittent
  29  * @summary Basic Test for the following methods:
  30  *          - ThreadMXBean.findDeadlockedThreads()
  31  *          - ThreadMXBean.findMonitorDeadlockedThreads()
  32  * @author  Mandy Chung
  33  *
  34  * @modules java.management
  35  * @build MonitorDeadlock
  36  * @build SynchronizerDeadlock
  37  * @build ThreadDump
  38  * @run main/othervm FindDeadlocks
  39  */
  40 
  41 import java.lang.management.*;
  42 import java.util.*;
  43 
  44 public class FindDeadlocks {
  45     static ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
  46     public static void main(String[] argv) {
  47         ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
  48         // create deadlocked threads
  49         MonitorDeadlock md = new MonitorDeadlock();
  50 
  51         // no deadlock
  52         if (findDeadlocks() != null) {
  53             throw new RuntimeException("TEST FAILED: Should return null.");
  54         }

  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 
  25 /*
  26  * @test
  27  * @bug     5086470
  28  * @key intermittent
  29  * @summary Basic Test for the following methods:
  30  *          - ThreadMXBean.findDeadlockedThreads()
  31  *          - ThreadMXBean.findMonitorDeadlockedThreads()
  32  * @author  Mandy Chung
  33  *

  34  * @build MonitorDeadlock
  35  * @build SynchronizerDeadlock
  36  * @build ThreadDump
  37  * @run main/othervm FindDeadlocks
  38  */
  39 
  40 import java.lang.management.*;
  41 import java.util.*;
  42 
  43 public class FindDeadlocks {
  44     static ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
  45     public static void main(String[] argv) {
  46         ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
  47         // create deadlocked threads
  48         MonitorDeadlock md = new MonitorDeadlock();
  49 
  50         // no deadlock
  51         if (findDeadlocks() != null) {
  52             throw new RuntimeException("TEST FAILED: Should return null.");
  53         }