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Oracle Fusion Middleware Java API Reference for Oracle WebLogic Server 12c (12.1.3) Part Number E41849-02 |
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public interface JVMRuntimeMBean
Provides methods for retrieving information about the Java Virtual Machine (JVM) within with the current server instance is running. You cannot change the JVM's operating parameters while the JVM is active. Instead, use the startup options that are described in the JVM's documentation.
The WebLogic JVM contains only one of these Runtime MBeans:
If the JVM is an instance of a JRockit JDK, then the JVM contains
JRockitRuntime MBean
.
Otherwise, it contains the JVMRuntimeMBean
.
Method Summary | |
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long |
getHeapFreeCurrent()
The current amount of memory (in bytes) that is available in the JVM heap. |
int |
getHeapFreePercent()
Percentage of the maximum memory that is free. |
long |
getHeapSizeCurrent()
The current size (in bytes) of the JVM heap. |
long |
getHeapSizeMax()
The maximum free memory configured for this JVM. |
String |
getJavaVendor()
Returns the vendor of Java. |
String |
getJavaVersion()
The Java version of the JVM. |
String |
getJavaVMVendor()
Returns the vendor of the JVM. |
String |
getOSName()
Returns the operating system on which the JVM is running. |
String |
getOSVersion()
The version of the operating system on which the JVM is running. |
String |
getThreadStackDump()
JVM thread dump. |
long |
getUptime()
The number of milliseconds that the Virtual Machine has been running. |
Methods inherited from interface weblogic.management.WebLogicMBean |
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getMBeanInfo, getName, getObjectName, getParent, getType, isCachingDisabled, isRegistered, setParent |
Methods inherited from interface javax.management.DynamicMBean |
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getAttribute, getAttributes, invoke, setAttribute, setAttributes |
Methods inherited from interface javax.management.MBeanRegistration |
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postDeregister, postRegister, preDeregister, preRegister |
Methods inherited from interface javax.management.NotificationBroadcaster |
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addNotificationListener, getNotificationInfo, removeNotificationListener |
Method Detail |
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long getHeapFreeCurrent()
The current amount of memory (in bytes) that is available in the JVM heap.
long getHeapSizeCurrent()
The current size (in bytes) of the JVM heap.
long getHeapSizeMax()
The maximum free memory configured for this JVM.
int getHeapFreePercent()
Percentage of the maximum memory that is free.
String getJavaVersion()
The Java version of the JVM.
String getJavaVendor()
The vendor of Java that this server runs.
String getJavaVMVendor()
The vendor of the JVM that this server runs.
system property java.vm.vendor is returned
String getOSName()
The operating system on which the JVM is running.
String getOSVersion()
The version of the operating system on which the JVM is running.
String getThreadStackDump()
JVM thread dump. Thread dump is available only on 1.5 VM
long getUptime()
The number of milliseconds that the Virtual Machine has been running.
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Copyright 1996, 2014, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Oracle Fusion Middleware Java API Reference for Oracle WebLogic Server 12c (12.1.3) Part Number E41849-02 |
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