1 /* 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. 7 * 8 * This code is distributed in the hope that it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 11 * version 2 for more details (a copy is included in the LICENSE file that 12 * accompanied this code). 13 * 14 * You should have received a copy of the GNU General Public License version 15 * 2 along with this work; if not, write to the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 * 18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 19 * or visit www.oracle.com if you need additional information or have any 20 * questions. 21 */ 22 23 /* 24 * This file is available under and governed by the GNU General Public 25 * License version 2 only, as published by the Free Software Foundation. 26 * However, the following notice accompanied the original version of this 27 * file: 28 * 29 * Written by Doug Lea with assistance from members of JCP JSR-166 30 * Expert Group and released to the public domain, as explained at 31 * http://creativecommons.org/publicdomain/zero/1.0/ 32 * Other contributors include Andrew Wright, Jeffrey Hayes, 33 * Pat Fisher, Mike Judd. 34 */ 35 36 package test.java.util.concurrent.tck; 37 import junit.framework.Test; 38 import junit.framework.TestSuite; 39 40 public class ThreadTest extends JSR166TestCase { main(String[] args)41 public static void main(String[] args) { 42 main(suite(), args); 43 } 44 suite()45 public static Test suite() { 46 return new TestSuite(ThreadTest.class); 47 } 48 49 static class MyHandler implements Thread.UncaughtExceptionHandler { uncaughtException(Thread t, Throwable e)50 public void uncaughtException(Thread t, Throwable e) { 51 e.printStackTrace(); 52 } 53 } 54 55 /** 56 * getUncaughtExceptionHandler returns ThreadGroup unless set, 57 * otherwise returning value of last setUncaughtExceptionHandler. 58 */ testGetAndSetUncaughtExceptionHandler()59 public void testGetAndSetUncaughtExceptionHandler() { 60 // these must be done all at once to avoid state 61 // dependencies across tests 62 Thread current = Thread.currentThread(); 63 ThreadGroup tg = current.getThreadGroup(); 64 MyHandler eh = new MyHandler(); 65 assertSame(tg, current.getUncaughtExceptionHandler()); 66 current.setUncaughtExceptionHandler(eh); 67 try { 68 assertSame(eh, current.getUncaughtExceptionHandler()); 69 } finally { 70 current.setUncaughtExceptionHandler(null); 71 } 72 assertSame(tg, current.getUncaughtExceptionHandler()); 73 } 74 75 /** 76 * getDefaultUncaughtExceptionHandler returns value of last 77 * setDefaultUncaughtExceptionHandler. 78 */ testGetAndSetDefaultUncaughtExceptionHandler()79 public void testGetAndSetDefaultUncaughtExceptionHandler() { 80 assertEquals(null, Thread.getDefaultUncaughtExceptionHandler()); 81 // failure due to SecurityException is OK. 82 // Would be nice to explicitly test both ways, but cannot yet. 83 Thread.UncaughtExceptionHandler defaultHandler 84 = Thread.getDefaultUncaughtExceptionHandler(); 85 MyHandler eh = new MyHandler(); 86 try { 87 Thread.setDefaultUncaughtExceptionHandler(eh); 88 try { 89 assertSame(eh, Thread.getDefaultUncaughtExceptionHandler()); 90 } finally { 91 Thread.setDefaultUncaughtExceptionHandler(defaultHandler); 92 } 93 } catch (SecurityException ok) { 94 assertNotNull(System.getSecurityManager()); 95 } 96 assertSame(defaultHandler, Thread.getDefaultUncaughtExceptionHandler()); 97 } 98 99 // How to test actually using UEH within junit? 100 101 } 102