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 6467152 6716076 6829503
27 * @summary deadlock occurs in LogManager initialization and JVM termination
28 * @author Serguei Spitsyn / Hitachi / Martin Buchholz
29 *
30 * @build LoggingDeadlock2
31 * @run main/timeout=15 LoggingDeadlock2
32 *
33 * There is a clear deadlock between LogManager.<clinit> and
34 * Cleaner.run() methods.
35 * T1 thread:
36 * The LogManager.<clinit> creates LogManager.manager object,
37 * sets shutdown hook with the Cleaner class and then waits
38 * to lock the LogManager.manager monitor.
39 * T2 thread:
40 * It is started by the System.exit() as shutdown hook thread.
41 * It locks the LogManager.manager monitor and then calls the
42 * static methods of the LogManager class (in this particular
43 * case it is a trick of the inner classes implementation).
44 * It is waits when the LogManager.<clinit> is completed.
45 *
46 * This is a regression test for this bug.
47 */
48
49 import java.util.Arrays;
50 import java.util.List;
51 import java.util.Random;
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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 6467152 6716076 6829503
27 * @summary deadlock occurs in LogManager initialization and JVM termination
28 * @author Serguei Spitsyn / Hitachi / Martin Buchholz
29 *
30 * @build LoggingDeadlock2
31 * @run main LoggingDeadlock2
32 *
33 * There is a clear deadlock between LogManager.<clinit> and
34 * Cleaner.run() methods.
35 * T1 thread:
36 * The LogManager.<clinit> creates LogManager.manager object,
37 * sets shutdown hook with the Cleaner class and then waits
38 * to lock the LogManager.manager monitor.
39 * T2 thread:
40 * It is started by the System.exit() as shutdown hook thread.
41 * It locks the LogManager.manager monitor and then calls the
42 * static methods of the LogManager class (in this particular
43 * case it is a trick of the inner classes implementation).
44 * It is waits when the LogManager.<clinit> is completed.
45 *
46 * This is a regression test for this bug.
47 */
48
49 import java.util.Arrays;
50 import java.util.List;
51 import java.util.Random;
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