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 /*
  25  * @test
  26  * @bug 6303187
  27  * @summary Test that no locks are held when a monitor attribute is sampled
  28  * or notif delivered.
  29  * @author Eamonn McManus

  30  * @run clean CounterMonitorDeadlockTest
  31  * @run build CounterMonitorDeadlockTest
  32  * @run main CounterMonitorDeadlockTest 1
  33  * @run main CounterMonitorDeadlockTest 2
  34  * @run main CounterMonitorDeadlockTest 3
  35  * @run main CounterMonitorDeadlockTest 4
  36  */
  37 
  38 import java.lang.management.ManagementFactory;
  39 import java.util.concurrent.atomic.AtomicInteger;
  40 import javax.management.JMX;
  41 import javax.management.MBeanServer;
  42 import javax.management.Notification;
  43 import javax.management.NotificationListener;
  44 import javax.management.ObjectName;
  45 import javax.management.monitor.CounterMonitor;
  46 import javax.management.monitor.CounterMonitorMBean;
  47 
  48 public class CounterMonitorDeadlockTest {
  49 

  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 /*
  25  * @test
  26  * @bug 6303187
  27  * @summary Test that no locks are held when a monitor attribute is sampled
  28  * or notif delivered.
  29  * @author Eamonn McManus
  30  * @modules java.management
  31  * @run clean CounterMonitorDeadlockTest
  32  * @run build CounterMonitorDeadlockTest
  33  * @run main CounterMonitorDeadlockTest 1
  34  * @run main CounterMonitorDeadlockTest 2
  35  * @run main CounterMonitorDeadlockTest 3
  36  * @run main CounterMonitorDeadlockTest 4
  37  */
  38 
  39 import java.lang.management.ManagementFactory;
  40 import java.util.concurrent.atomic.AtomicInteger;
  41 import javax.management.JMX;
  42 import javax.management.MBeanServer;
  43 import javax.management.Notification;
  44 import javax.management.NotificationListener;
  45 import javax.management.ObjectName;
  46 import javax.management.monitor.CounterMonitor;
  47 import javax.management.monitor.CounterMonitorMBean;
  48 
  49 public class CounterMonitorDeadlockTest {
  50