| /* |
| * Copyright (c) 2011, 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 7028071 |
| * @summary Basic unit test of OperatingSystemMXBean.getProcessCpuLoad() |
| * |
| * @run main GetSystemCpuLoad |
| */ |
| |
| import java.lang.management.*; |
| import com.sun.management.OperatingSystemMXBean; |
| |
| public class GetSystemCpuLoad { |
| public static void main(String[] argv) throws Exception { |
| OperatingSystemMXBean mbean = (com.sun.management.OperatingSystemMXBean) |
| ManagementFactory.getOperatingSystemMXBean(); |
| double load; |
| for(int i=0; i<10; i++) { |
| load = mbean.getSystemCpuLoad(); |
| if((load<0.0 || load>1.0) && load != -1.0) { |
| throw new RuntimeException("getSystemCpuLoad() returns " + load |
| + " which is not in the [0.0,1.0] interval"); |
| } |
| try { |
| Thread.sleep(200); |
| } catch(InterruptedException e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| } |
