/*
* 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 8012019
* @summary Tests interruption of threads doing position-based read methods in
* an attempt to provoke a deadlock between position sensitive and position
* insensitive methods
*/
public class InterruptDeadlock {
/**
* A thread that continuously reads from a FileChannel with
* the FileChannel is closed.
*/
}
public void run() {
try {
long pos = 0L;
for (;;) {
if (n > 0)
pos += n;
// fc.size is important here as it is position sensitive
pos = 0L;
}
} catch (ClosedChannelException x) {
} catch (Exception unexpected) {
this.exception = unexpected;
}
}
return exception;
}
r.start();
return r;
}
}
// the number of reader threads to start
}
for (int i=1; i<=20; i++) {
boolean failed = false;
// start reader threads
for (int j=0; j<READER_COUNT; j++) {
}
// give readers a bit of time to get started (not strictly required)
// interrupt and wait for the readers to terminate
r.interrupt();
}
try {
r.join(10000);
if (e != null) {
failed = true;
}
} catch (InterruptedException x) {
failed = true;
}
}
// the channel should not be open at this point
failed = true;
}
if (failed)
throw new RuntimeException("Test failed - see log for details");
}
}
}
}