75 lines
2.7 KiB
Java
75 lines
2.7 KiB
Java
/*
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* Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 5025230
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* @summary Tests to see that a set nested in initialValue works OK
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* @author Pete Soper
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*/
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public class InitialValue implements Runnable {
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static ThreadLocal<String> other;
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static boolean passed;
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public class MyLocal extends ThreadLocal<String> {
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String val;
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protected String initialValue() {
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other = new ThreadLocal<String>();
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// This should reuse the map that the containing get() created
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// or visa versa (i.e. instead of a second map being created).
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other.set("Other");
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return "Initial";
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}
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}
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public void run() {
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MyLocal l = new MyLocal();
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// This should pick up the initial value
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String s1 = l.get();
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// And this should pick up the other local in this thread's locals map
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String s2 = other.get();
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if ((s2 != null) && s2.equals("Other")) {
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// JMM guarantees this will be visible to
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// another thread joining with this thread's
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// termination: no need for this to be volatile.
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passed = true;
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}
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}
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public static void main(String[] args) {
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// Starting with Mustang the main thread already has an initialized
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// ThreadLocal map at this point, so test with a second thread.
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Thread t = new Thread(new InitialValue());
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t.start();
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try {
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t.join();
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} catch (InterruptedException e) {
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throw new RuntimeException("Test Interrupted: failed");
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}
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if (!passed) {
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throw new RuntimeException("Test Failed");
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}
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}
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}
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