TestRaceCond.java revision 1183:c3aaa11e4eb6
1/* 2 * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 20 * CA 95054 USA or visit www.sun.com if you need additional information or 21 * have any questions. 22 */ 23 24/* 25 * @test 26 * @bug 6731826 27 * @summary There should be no RuntimeException. 28 * @run main TestRaceCond 29 */ 30 31import javax.print.PrintService; 32import javax.print.PrintServiceLookup; 33 34 35public class TestRaceCond { 36 37 public static void main(String argv[]) { 38 trial(); 39 } 40 41 static void trial() { 42 PrintService pserv1 = PrintServiceLookup.lookupDefaultPrintService(); 43 PrintService[] pservs = PrintServiceLookup.lookupPrintServices(null, null); 44 PrintService pserv2 = PrintServiceLookup.lookupDefaultPrintService(); 45 46 if ((pserv1 == null) || (pserv2==null)) { 47 return; 48 } 49 50 if (pserv1.hashCode() != pserv2.hashCode()) { 51 throw new RuntimeException("Different hashCodes for equal print " 52 + "services: " + pserv1.hashCode() + " " 53 + pserv2.hashCode()); 54 } 55 } 56} 57 58