J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @test |
| 26 | * @bug 4929401 |
| 27 | * @summary ThreadMXBean.getThreadCpuTime() throws IllegalArgumentException |
| 28 | * if id <= 0 and returns -1 if the thread doesn't exist. |
| 29 | * @author Mandy Chung |
| 30 | * |
| 31 | * @run main InvalidThreadID |
| 32 | */ |
| 33 | |
| 34 | import java.lang.management.ThreadMXBean; |
| 35 | import java.lang.management.ManagementFactory; |
| 36 | |
| 37 | public class InvalidThreadID { |
| 38 | |
| 39 | public static void main(String argv[]) { |
| 40 | |
| 41 | ThreadMXBean mbean = ManagementFactory.getThreadMXBean(); |
| 42 | int cnt = 0; |
| 43 | long [] idArr = {0, -1, -2, (Long.MIN_VALUE + 1), Long.MIN_VALUE}; |
| 44 | |
| 45 | if (mbean.isThreadCpuTimeSupported()) { |
| 46 | for (int i = 0; i < idArr.length; i++) { |
| 47 | try { |
| 48 | mbean.getThreadCpuTime(idArr[i]); |
| 49 | System.out.println("Test failed. IllegalArgumentException" + |
| 50 | " expected for ID = " + idArr[i]); |
| 51 | } catch (IllegalArgumentException iae) { |
| 52 | cnt++; |
| 53 | } |
| 54 | } |
| 55 | if (cnt != idArr.length) { |
| 56 | throw new RuntimeException("Unexpected number of " + |
| 57 | "IllegalArgumentException = " + cnt + |
| 58 | " expected = " + idArr.length); |
| 59 | } |
| 60 | |
| 61 | // CPU time for a non-existence thread |
| 62 | long time = mbean.getThreadCpuTime(999999); |
| 63 | if (time < 0 && time != -1) { |
| 64 | throw new RuntimeException("Cpu time for thread 999999" + |
| 65 | " is invalid = " + time + " expected to be -1."); |
| 66 | } |
| 67 | } |
| 68 | System.out.println("Test passed."); |
| 69 | } |
| 70 | } |