Basic.java revision 2362
418N/A/*
418N/A * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
418N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
418N/A *
418N/A * This code is free software; you can redistribute it and/or modify it
418N/A * under the terms of the GNU General Public License version 2 only, as
418N/A * published by the Free Software Foundation.
418N/A *
418N/A * This code is distributed in the hope that it will be useful, but WITHOUT
418N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
418N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
418N/A * version 2 for more details (a copy is included in the LICENSE file that
418N/A * accompanied this code).
418N/A *
418N/A * You should have received a copy of the GNU General Public License version
418N/A * 2 along with this work; if not, write to the Free Software Foundation,
418N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
418N/A *
418N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
418N/A * or visit www.oracle.com if you need additional information or have any
418N/A * questions.
418N/A */
418N/A
418N/A/*
418N/A * @test
418N/A * @summary Basic functional test of ThreadLocal
418N/A * @author Josh Bloch
418N/A */
418N/A
418N/Apublic class Basic {
418N/A static ThreadLocal n = new ThreadLocal() {
418N/A int i = 0;
418N/A protected synchronized Object initialValue() {
418N/A return new Integer(i++);
418N/A }
418N/A };
418N/A
418N/A public static void main(String args[]) throws Exception {
418N/A int threadCount = 100;
418N/A Thread th[] = new Thread[threadCount];
418N/A final int x[] = new int[threadCount];
418N/A
418N/A // Start the threads
418N/A for(int i=0; i<threadCount; i++) {
418N/A th[i] = new Thread() {
418N/A public void run() {
418N/A int threadId = ((Integer)(n.get())).intValue();
418N/A for (int j=0; j<threadId; j++) {
418N/A x[threadId]++;
418N/A Thread.currentThread().yield();
418N/A }
418N/A }
418N/A };
418N/A th[i].start();
418N/A }
418N/A
418N/A // Wait for the threads to finish
418N/A for(int i=0; i<threadCount; i++)
418N/A th[i].join();
418N/A
418N/A // Check results
418N/A for(int i=0; i<threadCount; i++)
418N/A if (x[i] != i)
418N/A throw(new Exception("x[" + i + "] =" + x[i]));
418N/A }
418N/A}
418N/A