71 lines
2.6 KiB
Java
71 lines
2.6 KiB
Java
/*
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* Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4929401
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* @summary ThreadMXBean.getThreadCpuTime() throws IllegalArgumentException
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* if id <= 0 and returns -1 if the thread doesn't exist.
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* @author Mandy Chung
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*
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* @run main InvalidThreadID
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*/
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import java.lang.management.ThreadMXBean;
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import java.lang.management.ManagementFactory;
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public class InvalidThreadID {
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public static void main(String argv[]) {
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ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
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int cnt = 0;
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long [] idArr = {0, -1, -2, (Long.MIN_VALUE + 1), Long.MIN_VALUE};
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if (mbean.isThreadCpuTimeSupported()) {
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for (int i = 0; i < idArr.length; i++) {
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try {
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mbean.getThreadCpuTime(idArr[i]);
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System.out.println("Test failed. IllegalArgumentException" +
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" expected for ID = " + idArr[i]);
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} catch (IllegalArgumentException iae) {
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cnt++;
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}
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}
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if (cnt != idArr.length) {
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throw new RuntimeException("Unexpected number of " +
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"IllegalArgumentException = " + cnt +
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" expected = " + idArr.length);
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}
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// CPU time for a non-existence thread
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long time = mbean.getThreadCpuTime(999999);
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if (time < 0 && time != -1) {
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throw new RuntimeException("Cpu time for thread 999999" +
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" is invalid = " + time + " expected to be -1.");
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}
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}
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System.out.println("Test passed.");
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}
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}
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