/*
* 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
* questions.
*/
/* @test
* @bug 4178693
* @summary Ensure that null queue arguments don't crash the Reference handler
* @author Mark Reinhold
*/
public class NullQueue {
/* Find reference-handler thread */
}
return null;
}
t.start();
t.join();
}
if (refHandler == null)
throw new Exception("Couldn't find Reference-handler thread");
if (!refHandler.isAlive())
throw new Exception("Reference-handler thread is not alive");
/* Invoke a Reference constructor, passing null for the queue */
public void run() {
}});
/* Force the reference to be cleared and enqueued by the GC */
for (int i = 0;; i++) {
if (i >= 10)
throw new Exception("Couldn't cause weak ref to be cleared");
}
/* Check that the handler is still alive */
if (!refHandler.isAlive())
throw new Exception("Reference-handler thread died");
}
}