101 lines
3.5 KiB
Java
101 lines
3.5 KiB
Java
/*
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* Copyright (c) 2015, 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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* @summary Basic test for Thread(ThreadGroup,Runnable,String,long,boolean)
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*/
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public class ITLConstructor {
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static InheritableThreadLocal<Integer> n = new InheritableThreadLocal<>() {
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protected Integer initialValue() {
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return 0;
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}
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protected Integer childValue(Integer parentValue) {
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return parentValue + 1;
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}
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};
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static final int CHILD_THREAD_COUNT = 10;
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public static void main(String args[]) throws Exception {
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test(true);
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test(false);
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}
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static void test(boolean inherit) throws Exception {
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// concurrent access to separate indexes is ok
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int[] x = new int[CHILD_THREAD_COUNT];
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Thread child = new Thread(Thread.currentThread().getThreadGroup(),
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new AnotherRunnable(0, x, inherit),
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"ITLConstructor-thread-"+(0),
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0,
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inherit);
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child.start();
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child.join(); // waits for *all* threads to complete
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// Check results
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for(int i=0; i<CHILD_THREAD_COUNT; i++) {
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int expectedValue = 1;
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if (inherit)
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expectedValue = i+1;
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if (x[i] != expectedValue)
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throw (new Exception("Got x[" + i + "] = " + x[i]
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+ ", expected: " + expectedValue));
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}
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}
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static class AnotherRunnable implements Runnable {
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final int threadId;
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final int[] x;
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final boolean inherit;
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AnotherRunnable(int threadId, int[] x, boolean inherit) {
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this.threadId = threadId;
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this.x = x;
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this.inherit = inherit;
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}
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public void run() {
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int itlValue = n.get();
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if (threadId < CHILD_THREAD_COUNT-1) {
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Thread child = new Thread(Thread.currentThread().getThreadGroup(),
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new AnotherRunnable(threadId+1, x, inherit),
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"ITLConstructor-thread-" + (threadId+1),
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0,
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inherit);
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child.start();
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try {
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child.join();
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} catch(InterruptedException e) {
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throw(new RuntimeException("Interrupted", e));
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}
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}
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x[threadId] = itlValue+1;
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}
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}
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}
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