TestRaceCond.java

/*
 * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * 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.
 *
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 * questions.
 */

/*
 * @test
 * @bug 6731826
 * @summary  There should be no RuntimeException.
 * @run main TestRaceCond
 */

import javax.print.PrintService;
import javax.print.PrintServiceLookup;


public class TestRaceCond {

    public static void main(String argv[]) {
        trial();
    }

    static void trial() {
        PrintService pserv1 = PrintServiceLookup.lookupDefaultPrintService();
        PrintService[] pservs = PrintServiceLookup.lookupPrintServices(null, null);
        PrintService pserv2 = PrintServiceLookup.lookupDefaultPrintService();

        if ((pserv1 == null) || (pserv2==null)) {
            return;
        }

        if (pserv1.hashCode() != pserv2.hashCode()) {
            throw new RuntimeException("Different hashCodes for equal print "
                            + "services: " + pserv1.hashCode() + " "
                            + pserv2.hashCode());
        }
    }
}