/*
* Copyright ( c ) 1999 , 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
* @ summary Basic functional test of ThreadLocal
* @ author Josh Bloch
*/
public class Basic {
static ThreadLocal n = new ThreadLocal() {
int i = 0 ;
protected synchronized Object initialValue() {
return new Integer(i++);
}
};
public static void main(String args[]) throws Exception {
int threadCount = 100 ;
Thread th[] = new Thread [threadCount];
final int x[] = new int [threadCount];
// Start the threads
for (int i=0 ; i<threadCount; i++) {
th[i] = new Thread () {
public void run() {
int threadId = ((Integer)(n.get())).intValue();
for (int j=0 ; j<threadId; j++) {
x[threadId]++;
Thread .currentThread().yield();
}
}
};
th[i].start();
}
// Wait for the threads to finish
for (int i=0 ; i<threadCount; i++)
th[i].join();
// Check results
for (int i=0 ; i<threadCount; i++)
if (x[i] != i)
throw (new Exception("x[" + i + "] =" + x[i]));
}
}
Messung V0.5 in Prozent C=95 H=88 G=91
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