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