J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 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 5011189 |
| 27 | * @summary Unit test for java.lang.management.CompilationMXBean |
| 28 | * |
| 29 | * @run main/othervm -Xcomp -Xbatch -Djava.awt.headless=true Basic |
| 30 | */ |
| 31 | import java.lang.management.*; |
| 32 | |
| 33 | public class Basic { |
| 34 | |
| 35 | public static void main(String args[]) { |
| 36 | CompilationMXBean mb = ManagementFactory.getCompilationMXBean(); |
| 37 | if (mb == null) { |
| 38 | System.out.println("The virtual machine doesn't have a compilation system"); |
| 39 | return; |
| 40 | } |
| 41 | |
| 42 | // Exercise getName() method |
| 43 | System.out.println(mb.getName()); |
| 44 | |
| 45 | // If compilation time monitoring isn't supported then we are done |
| 46 | if (!mb.isCompilationTimeMonitoringSupported()) { |
| 47 | System.out.println("Compilation time monitoring not supported."); |
| 48 | return; |
| 49 | } |
| 50 | |
| 51 | // Exercise getTotalCompilationTime(); |
| 52 | long time; |
| 53 | |
| 54 | // If the compiler has already done some work then we are done |
| 55 | time = mb.getTotalCompilationTime(); |
| 56 | if (time > 0) { |
| 57 | printCompilationTime(time); |
| 58 | return; |
| 59 | } |
| 60 | |
| 61 | // Now the hard bit - we do random work on the assumption |
| 62 | // that the compiler will be used. |
| 63 | |
| 64 | System.out.println("Doing random work..."); |
| 65 | |
| 66 | java.util.Locale.getAvailableLocales(); |
| 67 | java.security.Security.getProviders(); |
| 68 | java.awt.Toolkit.getDefaultToolkit(); |
| 69 | javax.swing.UIManager.getInstalledLookAndFeels(); |
| 70 | java.nio.channels.spi.SelectorProvider.provider(); |
| 71 | |
| 72 | time = mb.getTotalCompilationTime(); |
| 73 | if (time > 0) { |
| 74 | printCompilationTime(time); |
| 75 | } else { |
| 76 | throw new RuntimeException("getTimeCompilionTime returns 0"); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | static void printCompilationTime(long time) { |
| 81 | System.out.println("Total compilation time: " + time + " ms"); |
| 82 | } |
| 83 | } |