src/share/classes/sun/management/VMManagementImpl.java

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   1 /*
   2  * Copyright (c) 2003, 2011, Oracle and/or its affiliates. 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


  40 import sun.security.action.GetPropertyAction;
  41 
  42 /**
  43  * Implementation of VMManagement interface that accesses the management
  44  * attributes and operations locally within the same Java virtual
  45  * machine.
  46  */
  47 class VMManagementImpl implements VMManagement {
  48 
  49     private static String version;
  50 
  51     private static boolean compTimeMonitoringSupport;
  52     private static boolean threadContentionMonitoringSupport;
  53     private static boolean currentThreadCpuTimeSupport;
  54     private static boolean otherThreadCpuTimeSupport;
  55     private static boolean bootClassPathSupport;
  56     private static boolean objectMonitorUsageSupport;
  57     private static boolean synchronizerUsageSupport;
  58     private static boolean threadAllocatedMemorySupport;
  59     private static boolean gcNotificationSupport;

  60 
  61 
  62     static {
  63         version = getVersion0();
  64         if (version == null) {
  65             throw new AssertionError("Invalid Management Version");
  66         }
  67         initOptionalSupportFields();
  68     }
  69     private native static String getVersion0();
  70     private native static void initOptionalSupportFields();
  71 
  72     // Optional supports
  73     public boolean isCompilationTimeMonitoringSupported() {
  74         return compTimeMonitoringSupport;
  75     }
  76 
  77     public boolean isThreadContentionMonitoringSupported() {
  78         return threadContentionMonitoringSupport;
  79     }


  89     public boolean isBootClassPathSupported() {
  90         return bootClassPathSupport;
  91     }
  92 
  93     public boolean isObjectMonitorUsageSupported() {
  94         return objectMonitorUsageSupport;
  95     }
  96 
  97     public boolean isSynchronizerUsageSupported() {
  98         return synchronizerUsageSupport;
  99     }
 100 
 101     public boolean isThreadAllocatedMemorySupported() {
 102         return threadAllocatedMemorySupport;
 103     }
 104 
 105     public boolean isGcNotificationSupported() {
 106         return gcNotificationSupport;
 107     }
 108 




 109     public native boolean isThreadContentionMonitoringEnabled();
 110     public native boolean isThreadCpuTimeEnabled();
 111     public native boolean isThreadAllocatedMemoryEnabled();
 112 
 113     // Class Loading Subsystem
 114     public int    getLoadedClassCount() {
 115         long count = getTotalClassCount() - getUnloadedClassCount();
 116         return (int) count;
 117     }
 118     public native long getTotalClassCount();
 119     public native long getUnloadedClassCount();
 120 
 121     public native boolean getVerboseClass();
 122 
 123     // Memory Subsystem
 124     public native boolean getVerboseGC();
 125 
 126     // Runtime Subsystem
 127     public String   getManagementVersion() {
 128         return version;


   1 /*
   2  * Copyright (c) 2003, 2013, Oracle and/or its affiliates. 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


  40 import sun.security.action.GetPropertyAction;
  41 
  42 /**
  43  * Implementation of VMManagement interface that accesses the management
  44  * attributes and operations locally within the same Java virtual
  45  * machine.
  46  */
  47 class VMManagementImpl implements VMManagement {
  48 
  49     private static String version;
  50 
  51     private static boolean compTimeMonitoringSupport;
  52     private static boolean threadContentionMonitoringSupport;
  53     private static boolean currentThreadCpuTimeSupport;
  54     private static boolean otherThreadCpuTimeSupport;
  55     private static boolean bootClassPathSupport;
  56     private static boolean objectMonitorUsageSupport;
  57     private static boolean synchronizerUsageSupport;
  58     private static boolean threadAllocatedMemorySupport;
  59     private static boolean gcNotificationSupport;
  60     private static boolean remoteDiagnosticCommandsSupport;
  61 
  62 
  63     static {
  64         version = getVersion0();
  65         if (version == null) {
  66             throw new AssertionError("Invalid Management Version");
  67         }
  68         initOptionalSupportFields();
  69     }
  70     private native static String getVersion0();
  71     private native static void initOptionalSupportFields();
  72 
  73     // Optional supports
  74     public boolean isCompilationTimeMonitoringSupported() {
  75         return compTimeMonitoringSupport;
  76     }
  77 
  78     public boolean isThreadContentionMonitoringSupported() {
  79         return threadContentionMonitoringSupport;
  80     }


  90     public boolean isBootClassPathSupported() {
  91         return bootClassPathSupport;
  92     }
  93 
  94     public boolean isObjectMonitorUsageSupported() {
  95         return objectMonitorUsageSupport;
  96     }
  97 
  98     public boolean isSynchronizerUsageSupported() {
  99         return synchronizerUsageSupport;
 100     }
 101 
 102     public boolean isThreadAllocatedMemorySupported() {
 103         return threadAllocatedMemorySupport;
 104     }
 105 
 106     public boolean isGcNotificationSupported() {
 107         return gcNotificationSupport;
 108     }
 109     
 110     public boolean isRemoteDiagnosticCommandsSupported() {
 111         return remoteDiagnosticCommandsSupport;
 112     }
 113 
 114     public native boolean isThreadContentionMonitoringEnabled();
 115     public native boolean isThreadCpuTimeEnabled();
 116     public native boolean isThreadAllocatedMemoryEnabled();
 117 
 118     // Class Loading Subsystem
 119     public int    getLoadedClassCount() {
 120         long count = getTotalClassCount() - getUnloadedClassCount();
 121         return (int) count;
 122     }
 123     public native long getTotalClassCount();
 124     public native long getUnloadedClassCount();
 125 
 126     public native boolean getVerboseClass();
 127 
 128     // Memory Subsystem
 129     public native boolean getVerboseGC();
 130 
 131     // Runtime Subsystem
 132     public String   getManagementVersion() {
 133         return version;