Basic.java revision 2362
107N/A/*
107N/A * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
107N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
107N/A *
107N/A * This code is free software; you can redistribute it and/or modify it
107N/A * under the terms of the GNU General Public License version 2 only, as
107N/A * published by the Free Software Foundation.
107N/A *
107N/A * This code is distributed in the hope that it will be useful, but WITHOUT
107N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
107N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
107N/A * version 2 for more details (a copy is included in the LICENSE file that
107N/A * accompanied this code).
107N/A *
107N/A * You should have received a copy of the GNU General Public License version
107N/A * 2 along with this work; if not, write to the Free Software Foundation,
107N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
107N/A *
107N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
107N/A * or visit www.oracle.com if you need additional information or have any
107N/A * questions.
107N/A */
107N/A
107N/A/*
107N/A * @test
107N/A * @summary Basic functional test of InheritableThreadLocal
107N/A * @author Josh Bloch
107N/A */
107N/A
107N/Apublic class Basic {
107N/A static InheritableThreadLocal n = new InheritableThreadLocal() {
107N/A protected Object initialValue() {
107N/A return new Integer(0);
107N/A }
107N/A
107N/A protected Object childValue(Object parentValue) {
107N/A return new Integer(((Integer)parentValue).intValue() + 1);
107N/A }
107N/A };
107N/A
107N/A static int threadCount = 100;
107N/A static int x[];
107N/A
107N/A public static void main(String args[]) throws Exception {
107N/A x = new int[threadCount];
107N/A Thread progenitor = new MyThread();
107N/A progenitor.start();
107N/A
107N/A // Wait for *all* threads to complete
107N/A progenitor.join();
107N/A
// Check results
for(int i=0; i<threadCount; i++)
if (x[i] != i)
throw(new Exception("x[" + i + "] =" + x[i]));
}
private static class MyThread extends Thread {
public void run() {
Thread child = null;
if (((Integer)(n.get())).intValue() < threadCount-1) {
child = new MyThread();
child.start();
}
Thread.currentThread().yield();
int threadId = ((Integer)(n.get())).intValue();
for (int j=0; j<threadId; j++) {
x[threadId]++;
Thread.currentThread().yield();
}
// Wait for child (if any)
if (child != null) {
try {
child.join();
} catch(InterruptedException e) {
throw(new RuntimeException("Interrupted"));
}
}
}
}
}