| /* |
| * Copyright (c) 2014, 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 8061616 |
| * @summary Basic Test for HotSpotDiagnosticMXBean.getVMOption() and double values |
| * @author Jaroslav Bachorik |
| * |
| * @run main/othervm -XX:CompileThresholdScaling=0.14 GetDoubleVMOption |
| */ |
| |
| import com.sun.management.HotSpotDiagnosticMXBean; |
| import com.sun.management.VMOption; |
| import java.lang.management.ManagementFactory; |
| import java.util.List; |
| import javax.management.MBeanServer; |
| |
| public class GetDoubleVMOption { |
| private static final String COMPILE_THRESHOLD_SCALING = "CompileThresholdScaling"; |
| private static final String EXPECTED_VALUE = "0.14"; |
| private static final String HOTSPOT_DIAGNOSTIC_MXBEAN_NAME = |
| "com.sun.management:type=HotSpotDiagnostic"; |
| |
| public static void main(String[] args) throws Exception { |
| List<HotSpotDiagnosticMXBean> list = |
| ManagementFactory.getPlatformMXBeans(HotSpotDiagnosticMXBean.class); |
| HotSpotDiagnosticMXBean mbean = list.get(0); |
| checkVMOption(mbean); |
| |
| MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); |
| mbean = ManagementFactory.newPlatformMXBeanProxy(mbs, |
| HOTSPOT_DIAGNOSTIC_MXBEAN_NAME, |
| HotSpotDiagnosticMXBean.class); |
| checkVMOption(mbean); |
| } |
| |
| private static void checkVMOption(HotSpotDiagnosticMXBean mbean) { |
| VMOption option = mbean.getVMOption(COMPILE_THRESHOLD_SCALING); |
| if (!option.getValue().equalsIgnoreCase(EXPECTED_VALUE)) { |
| throw new RuntimeException("Unexpected value: " + |
| option.getValue() + " expected: " + EXPECTED_VALUE); |
| } |
| } |
| } |