9 * This code is distributed in the hope that it will be useful, but WITHOUT
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 4757273
27 * @summary Test deadlock in MBeanServerDelegate listeners
28 * @author Eamonn McManus
29 * @modules java.management
30 * @run clean NotifDeadlockTest
31 * @run build NotifDeadlockTest
32 * @run main NotifDeadlockTest
33 */
34
35 /*
36 * Test deadlock when a listener for an MBeanServerDelegate does a
37 * register or unregister of an MBean. Since such a listener is
38 * triggered by a register or unregister operation, deadlock scenarios
39 * are possible if there are any locks held while the listener is
40 * being dispatched.
41 *
42 * The flow of control looks rather like this:
43 *
44 * Thread 1:
45 * - MBeanServer.createMBean(..., objectName1);
46 * --- MBeanServerDelegate.sendNotification
47 * ----- XListener.handleNotification
48 * ------- create Thread 2
49 * ------- wait for Thread 2 to complete
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT
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 4757273
27 * @summary Test deadlock in MBeanServerDelegate listeners
28 * @author Eamonn McManus
29 *
30 * @run clean NotifDeadlockTest
31 * @run build NotifDeadlockTest
32 * @run main NotifDeadlockTest
33 */
34
35 /*
36 * Test deadlock when a listener for an MBeanServerDelegate does a
37 * register or unregister of an MBean. Since such a listener is
38 * triggered by a register or unregister operation, deadlock scenarios
39 * are possible if there are any locks held while the listener is
40 * being dispatched.
41 *
42 * The flow of control looks rather like this:
43 *
44 * Thread 1:
45 * - MBeanServer.createMBean(..., objectName1);
46 * --- MBeanServerDelegate.sendNotification
47 * ----- XListener.handleNotification
48 * ------- create Thread 2
49 * ------- wait for Thread 2 to complete
|