1 /* 2 * Copyright (c) 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @bug 6880336 26 * @summary Test for nested SwingWorkers, i.e. when the second worker is 27 started from the first's doInBackground() method. A timeout when running 28 * this test is an indication of failure. 29 * @author Artem Ananiev 30 * @run main/timeout=32 NestedWorkers 31 */ 32 33 import javax.swing.*; 34 35 public class NestedWorkers extends SwingWorker<String, Void> { 36 37 private final static int MAX_LEVEL = 2; 38 39 private int level; 40 NestedWorkers(int level)41 public NestedWorkers(int level) { 42 super(); 43 this.level = level; 44 } 45 46 @Override doInBackground()47 public String doInBackground() throws Exception { 48 if (level < MAX_LEVEL) { 49 SwingWorker<String, Void> nested = new NestedWorkers(level + 1); 50 nested.execute(); 51 nested.get(); 52 } 53 System.out.println("doInBackground " + level + " is complete"); 54 return String.valueOf(level); 55 } 56 main(String[] args)57 public static void main(String[] args) throws Exception { 58 SwingUtilities.invokeAndWait(new Runnable() { 59 @Override 60 public void run() { 61 SwingWorker<String, Void> sw = new NestedWorkers(0); 62 sw.execute(); 63 try { 64 System.err.println(sw.get()); 65 } catch (Exception z) { 66 throw new RuntimeException(z); 67 } 68 } 69 }); 70 } 71 72 } 73