| /* |
| * Copyright (c) 2003, 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 |
| * @bug 4929401 |
| * @summary ThreadMXBean.getThreadCpuTime() throws IllegalArgumentException |
| * if id <= 0 and returns -1 if the thread doesn't exist. |
| * @author Mandy Chung |
| * |
| * @modules java.management |
| * @run main InvalidThreadID |
| */ |
| |
| import java.lang.management.ThreadMXBean; |
| import java.lang.management.ManagementFactory; |
| |
| public class InvalidThreadID { |
| |
| public static void main(String argv[]) { |
| |
| ThreadMXBean mbean = ManagementFactory.getThreadMXBean(); |
| int cnt = 0; |
| long [] idArr = {0, -1, -2, (Long.MIN_VALUE + 1), Long.MIN_VALUE}; |
| |
| if (mbean.isThreadCpuTimeSupported()) { |
| for (int i = 0; i < idArr.length; i++) { |
| try { |
| mbean.getThreadCpuTime(idArr[i]); |
| System.out.println("Test failed. IllegalArgumentException" + |
| " expected for ID = " + idArr[i]); |
| } catch (IllegalArgumentException iae) { |
| cnt++; |
| } |
| } |
| if (cnt != idArr.length) { |
| throw new RuntimeException("Unexpected number of " + |
| "IllegalArgumentException = " + cnt + |
| " expected = " + idArr.length); |
| } |
| |
| // CPU time for a non-existence thread |
| long time = mbean.getThreadCpuTime(999999); |
| if (time < 0 && time != -1) { |
| throw new RuntimeException("Cpu time for thread 999999" + |
| " is invalid = " + time + " expected to be -1."); |
| } |
| } |
| System.out.println("Test passed."); |
| } |
| } |