jdk/test/com/sun/management/HotSpotDiagnosticMXBean/GetDoubleVMOption.java
changeset 27493 8a2a7d7c52a0
parent 5506 202f599c92aa
child 30376 2ccf2cf7ea48
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/management/HotSpotDiagnosticMXBean/GetDoubleVMOption.java	Mon Nov 03 11:19:54 2014 +0100
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2014, 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);
+        }
+    }
+}