/*
* 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
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*/
/*
* @test
* @bug 4363076
* @summary Basic functional test of Thread.holdsLock(Object)
* @author Josh Bloch and Steffen Grarup
*/
public class HoldsLock {
}
public void run() {
checkLock(false);
synchronized(target) {
checkLock(true);
}
checkLock(false);
}
}
// Test null obj case
try {
checkLock(false);
throw new RuntimeException("NullPointerException not thrown");
} catch (NullPointerException e) {
};
// Test uncontested case
checkLock(false);
synchronized(target) {
checkLock(true);
}
checkLock(false);
// Test contested case
synchronized(target) {
checkLock(true);
new LockThread().start();
checkLock(true);
checkLock(true);
}
checkLock(false);
}
}