/*

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 * 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).

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 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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/* @test

 * @bug 6275081

 * @summary Rapidly alternating the number of remote objects exported

 * on an explicit port between zero and greater than zero (thus

 * causing the associated server socket to be created and closed

 * repeatedly) should not encounter substantial synchronous delays

 * because of the server socket accept loop's failure throttling

 * procedure (which sleeps 10 seconds after 10 rapid failures).

 * @author Peter Jones

 *

 * @build RapidExportUnexport

 * @run main/othervm RapidExportUnexport

 */

import java.rmi.Remote;

import java.rmi.server.UnicastRemoteObject;

public class RapidExportUnexport {

    private static final int PORT = 2055;

    private static final int REPS = 100;

    private static final long TIMEOUT = 60000;

    public static void main(String[] args) throws Exception {

        System.err.println("\nRegression test for bug 6275081\n");

        Remote impl = new Remote() { };

        long start = System.currentTimeMillis();

        for (int i = 0; i < REPS; i++) {

            System.err.println(i);

            UnicastRemoteObject.exportObject(impl, PORT);

            UnicastRemoteObject.unexportObject(impl, true);

            Thread.sleep(1);    // work around BindException (bug?)

        }

        long delta = System.currentTimeMillis() - start;

        System.err.println(REPS + " export/unexport operations took " +

                           delta + "ms");

        if (delta > TIMEOUT) {

            throw new Error("TEST FAILED: took over " + TIMEOUT + "ms");

        }

        System.err.println("TEST PASSED");

    }

}