/*

 * @test

 * @bug 4278121

 * @summary Ensure that calling unbind() on an unbound name returns

 *      successfully.

 */

import javax.naming.*;

public class UnbindIdempotent {

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

        // Create registry on port 1099 if one is not already running.

        try {

            java.rmi.registry.LocateRegistry.createRegistry(1099);

        } catch (java.rmi.RemoteException e) {

        }

        Context ictx = new InitialContext();

        Context rctx;

        try {

            rctx = (Context)ictx.lookup("rmi://localhost:1099");

        } catch (NamingException e) {

            // Unable to set up for test.

            return;

        }

        // Attempt to unbind a name that is not already bound.

        try {

            rctx.unbind("_bogus_4278121_");

        } catch (NameNotFoundException e) {

            throw new Exception("Test failed:  unbind() call not idempotent");

        }

    }

}