| /* |
| * Copyright (c) 2005, 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. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 5025230 |
| * @summary Tests to see that a set nested in initialValue works OK |
| * @author Pete Soper |
| */ |
| public class InitialValue implements Runnable { |
| |
| static ThreadLocal<String> other; |
| static boolean passed; |
| |
| public class MyLocal extends ThreadLocal<String> { |
| String val; |
| protected String initialValue() { |
| other = new ThreadLocal<String>(); |
| // This should reuse the map that the containing get() created |
| // or visa versa (i.e. instead of a second map being created). |
| other.set("Other"); |
| return "Initial"; |
| } |
| } |
| |
| public void run() { |
| MyLocal l = new MyLocal(); |
| // This should pick up the initial value |
| String s1 = l.get(); |
| // And this should pick up the other local in this thread's locals map |
| String s2 = other.get(); |
| if ((s2 != null) && s2.equals("Other")) { |
| // JMM guarantees this will be visible to |
| // another thread joining with this thread's |
| // termination: no need for this to be volatile. |
| passed = true; |
| } |
| } |
| |
| public static void main(String[] args) { |
| // Starting with Mustang the main thread already has an initialized |
| // ThreadLocal map at this point, so test with a second thread. |
| Thread t = new Thread(new InitialValue()); |
| t.start(); |
| try { |
| t.join(); |
| } catch (InterruptedException e) { |
| throw new RuntimeException("Test Interrupted: failed"); |
| } |
| if (!passed) { |
| throw new RuntimeException("Test Failed"); |
| } |
| } |
| } |