/* * Copyright (c) 2004, 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 remove method for ThreadLocal * @author Seetharama Avadhanam
*/
static ThreadLocal<Integer> n = new ThreadLocal<Integer>() { protectedsynchronized Integer initialValue() { return INITIAL_VALUE;
}
};
publicstaticvoid main(String args[]) throws Throwable { int threadCount = 100; finalint[] removeNode = {10,20,45,38}; // ThreadLocal values will be removed for these threads. finalint[] removeAndSet = {12,34,10}; // ThreadLocal values will be removed and sets new values..
Thread th[] = newThread[threadCount]; finalint x[] = newint[threadCount]; final Throwable exceptions[] = new Throwable[threadCount];
// To remove the ThreadLocal .... for(int removeId : removeNode) if(threadId == removeId){
n.remove(); // Removes ThreadLocal values.. break;
}
// To remove the ThreadLocal value and set new value ... for(int removeId : removeAndSet) if(threadId == removeId){
n.remove(); // Removes the ThreadLocal Value...
n.set(REMOVE_SET_VALUE); /* Setting new Values to
ThreadLocal */ break;
} /* Storing the threadlocal values in 'x'
...so that it can be used for checking results... */
x[threadId] = n.get();
} catch(Throwable ex){
exceptions[threadId] = ex;
}
}
};
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++){ int checkValue = i;
/* If the remove method is called then the ThreadLocal value will
* be its initial value */ for(int removeId : removeNode) if(removeId == i){
checkValue = INITIAL_VALUE; break;
}
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