/* * Copyright (c) 2012, 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.
*/
/* * Portions Copyright (c) 2012 IBM Corporation
*/
/** * @test * @bug 7164191 * @summary properties.putAll API may fail with ConcurrentModifcationException on multi-thread scenario * @modules jdk.management.agent/jdk.internal.agent * @author Deven You
*/
/** * In jdk.internal.agent.Agent.loadManagementProperties(), call * properties.putAll API may fail with ConcurrentModifcationException if the * system properties are modified simultaneously by another thread * * @param args * @throws Exception
*/ publicstaticvoid main(String[] args) throws Exception {
System.out.println("Start...");
final Properties properties = System.getProperties(); Thread t1 = newThread(new Runnable() { publicvoid run() { for (int i = 0; i < 100; i++) {
properties.put(String.valueOf(i), ""); try { Thread.sleep(1);
} catch (InterruptedException e) { // do nothing
}
}
}
});
t1.start();
for (int i = 0; i < 10000; i++) {
Agent.loadManagementProperties();
}
System.out.println("Finished...");
}
}
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