public interface

MBeanServer

implements MBeanServerConnection
javax.management.MBeanServer
Known Indirect Subclasses

Class Overview

This is the interface for MBean manipulation on the agent side. It contains the methods necessary for the creation, registration, and deletion of MBeans as well as the access methods for registered MBeans. This is the core component of the JMX infrastructure.

User code does not usually implement this interface. Instead, an object that implements this interface is obtained with one of the methods in the MBeanServerFactory class.

Every MBean which is added to the MBean server becomes manageable: its attributes and operations become remotely accessible through the connectors/adaptors connected to that MBean server. A Java object cannot be registered in the MBean server unless it is a JMX compliant MBean.

When an MBean is registered or unregistered in the MBean server a MBeanServerNotification Notification is emitted. To register an object as listener to MBeanServerNotifications you should call the MBean server method addNotificationListener with ObjectName the ObjectName of the MBeanServerDelegate. This ObjectName is:
JMImplementation:type=MBeanServerDelegate.

An object obtained from the createMBeanServer or newMBeanServer methods of the MBeanServerFactory class applies security checks to its methods, as follows.

First, if there is no security manager (getSecurityManager() is null), then an implementation of this interface is free not to make any checks.

Assuming that there is a security manager, or that the implementation chooses to make checks anyway, the checks are made as detailed below. In what follows, className is the string returned by getClassName() for the target MBean.

If a security check fails, the method throws SecurityException.

For methods that can throw InstanceNotFoundException, this exception is thrown for a non-existent MBean, regardless of permissions. This is because a non-existent MBean has no className.

Summary

Public Methods
abstract void addNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback)

Adds a listener to a registered MBean.

abstract void addNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback)

Adds a listener to a registered MBean.

abstract ObjectInstance createMBean(String className, ObjectName name)

Instantiates and registers an MBean in the MBean server.

abstract ObjectInstance createMBean(String className, ObjectName name, Object[] params, String[] signature)
Instantiates and registers an MBean in the MBean server.
abstract ObjectInstance createMBean(String className, ObjectName name, ObjectName loaderName)

Instantiates and registers an MBean in the MBean server.

abstract ObjectInstance createMBean(String className, ObjectName name, ObjectName loaderName, Object[] params, String[] signature)
Instantiates and registers an MBean in the MBean server.
abstract ObjectInputStream deserialize(ObjectName name, byte[] data)
This method is deprecated. Use getClassLoaderFor to obtain the appropriate class loader for deserialization.
abstract ObjectInputStream deserialize(String className, ObjectName loaderName, byte[] data)
This method is deprecated. Use getClassLoader to obtain the class loader for deserialization.
abstract ObjectInputStream deserialize(String className, byte[] data)
This method is deprecated. Use getClassLoaderRepository() to obtain the class loader repository and use it to deserialize.
abstract Object getAttribute(ObjectName name, String attribute)
Gets the value of a specific attribute of a named MBean.
abstract AttributeList getAttributes(ObjectName name, String[] attributes)
Enables the values of several attributes of a named MBean.
abstract ClassLoader getClassLoader(ObjectName loaderName)

Return the named ClassLoader.

abstract ClassLoader getClassLoaderFor(ObjectName mbeanName)

Return the ClassLoader that was used for loading the class of the named MBean.

abstract ClassLoaderRepository getClassLoaderRepository()

Return the ClassLoaderRepository for this MBeanServer.

abstract String getDefaultDomain()
Returns the default domain used for naming the MBean.
abstract String[] getDomains()

Returns the list of domains in which any MBean is currently registered.

abstract Integer getMBeanCount()
Returns the number of MBeans registered in the MBean server.
abstract MBeanInfo getMBeanInfo(ObjectName name)
This method discovers the attributes and operations that an MBean exposes for management.
abstract ObjectInstance getObjectInstance(ObjectName name)
Gets the ObjectInstance for a given MBean registered with the MBean server.
abstract Object instantiate(String className, ObjectName loaderName, Object[] params, String[] signature)

Instantiates an object.

abstract Object instantiate(String className, Object[] params, String[] signature)

Instantiates an object using the list of all class loaders registered in the MBean server Class Loader Repository.

abstract Object instantiate(String className)

Instantiates an object using the list of all class loaders registered in the MBean server's Class Loader Repository.

abstract Object instantiate(String className, ObjectName loaderName)

Instantiates an object using the class Loader specified by its ObjectName.

abstract Object invoke(ObjectName name, String operationName, Object[] params, String[] signature)
Invokes an operation on an MBean.
abstract boolean isInstanceOf(ObjectName name, String className)

Returns true if the MBean specified is an instance of the specified class, false otherwise.

abstract boolean isRegistered(ObjectName name)
Checks whether an MBean, identified by its object name, is already registered with the MBean server.
abstract Set<ObjectInstance> queryMBeans(ObjectName name, QueryExp query)
Gets MBeans controlled by the MBean server.
abstract Set<ObjectName> queryNames(ObjectName name, QueryExp query)
Gets the names of MBeans controlled by the MBean server.
abstract ObjectInstance registerMBean(Object object, ObjectName name)
Registers a pre-existing object as an MBean with the MBean server.
abstract void removeNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback)

Removes a listener from a registered MBean.

abstract void removeNotificationListener(ObjectName name, ObjectName listener)
Removes a listener from a registered MBean.
abstract void removeNotificationListener(ObjectName name, NotificationListener listener)

Removes a listener from a registered MBean.

abstract void removeNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback)

Removes a listener from a registered MBean.

abstract void setAttribute(ObjectName name, Attribute attribute)
Sets the value of a specific attribute of a named MBean.
abstract AttributeList setAttributes(ObjectName name, AttributeList attributes)
Sets the values of several attributes of a named MBean.
abstract void unregisterMBean(ObjectName name)
Unregisters an MBean from the MBean server.
[Expand]
Inherited Methods
From interface javax.management.MBeanServerConnection

Public Methods

public abstract void addNotificationListener (ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback)

Adds a listener to a registered MBean.

A notification emitted by an MBean will be forwarded by the MBeanServer to the listener. If the source of the notification is a reference to an MBean object, the MBean server will replace it by that MBean's ObjectName. Otherwise the source is unchanged.

Parameters
name The name of the MBean on which the listener should be added.
listener The listener object which will handle the notifications emitted by the registered MBean.
filter The filter object. If filter is null, no filtering will be performed before handling notifications.
handback The context to be sent to the listener when a notification is emitted.

public abstract void addNotificationListener (ObjectName name, ObjectName listener, NotificationFilter filter, Object handback)

Adds a listener to a registered MBean.

A notification emitted by an MBean will be forwarded by the MBeanServer to the listener. If the source of the notification is a reference to an MBean object, the MBean server will replace it by that MBean's ObjectName. Otherwise the source is unchanged.

The listener object that receives notifications is the one that is registered with the given name at the time this method is called. Even if it is subsequently unregistered, it will continue to receive notifications.

Parameters
name The name of the MBean on which the listener should be added.
listener The object name of the listener which will handle the notifications emitted by the registered MBean.
filter The filter object. If filter is null, no filtering will be performed before handling notifications.
handback The context to be sent to the listener when a notification is emitted.

public abstract ObjectInstance createMBean (String className, ObjectName name)

Instantiates and registers an MBean in the MBean server. The MBean server will use its Default Loader Repository to load the class of the MBean. An object name is associated to the MBean. If the object name given is null, the MBean must provide its own name by implementing the MBeanRegistration interface and returning the name from the preRegister method.

This method is equivalent to createMBean(className, name, (Object[]) null, (String[]) null).

Parameters
className The class name of the MBean to be instantiated.
name The object name of the MBean. May be null.
Returns
  • An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean. If the contained ObjectName is n, the contained Java class name is getMBeanInfo(n).getClassName().

public abstract ObjectInstance createMBean (String className, ObjectName name, Object[] params, String[] signature)

Instantiates and registers an MBean in the MBean server. The MBean server will use its Default Loader Repository to load the class of the MBean. An object name is associated to the MBean. If the object name given is null, the MBean must provide its own name by implementing the MBeanRegistration interface and returning the name from the preRegister method.

Parameters
className The class name of the MBean to be instantiated.
name The object name of the MBean. May be null.
params An array containing the parameters of the constructor to be invoked.
signature An array containing the signature of the constructor to be invoked.
Returns
  • An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean. If the contained ObjectName is n, the contained Java class name is getMBeanInfo(n).getClassName().

public abstract ObjectInstance createMBean (String className, ObjectName name, ObjectName loaderName)

Instantiates and registers an MBean in the MBean server. The class loader to be used is identified by its object name. An object name is associated to the MBean. If the object name of the loader is null, the ClassLoader that loaded the MBean server will be used. If the MBean's object name given is null, the MBean must provide its own name by implementing the MBeanRegistration interface and returning the name from the preRegister method.

This method is equivalent to createMBean(className, name, loaderName, (Object[]) null, (String[]) null).

Parameters
className The class name of the MBean to be instantiated.
name The object name of the MBean. May be null.
loaderName The object name of the class loader to be used.
Returns
  • An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean. If the contained ObjectName is n, the contained Java class name is getMBeanInfo(n).getClassName().

public abstract ObjectInstance createMBean (String className, ObjectName name, ObjectName loaderName, Object[] params, String[] signature)

Instantiates and registers an MBean in the MBean server. The class loader to be used is identified by its object name. An object name is associated to the MBean. If the object name of the loader is not specified, the ClassLoader that loaded the MBean server will be used. If the MBean object name given is null, the MBean must provide its own name by implementing the MBeanRegistration interface and returning the name from the preRegister method.

Parameters
className The class name of the MBean to be instantiated.
name The object name of the MBean. May be null.
loaderName The object name of the class loader to be used.
params An array containing the parameters of the constructor to be invoked.
signature An array containing the signature of the constructor to be invoked.
Returns
  • An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean. If the contained ObjectName is n, the contained Java class name is getMBeanInfo(n).getClassName().

public abstract ObjectInputStream deserialize (ObjectName name, byte[] data)

This method is deprecated.
Use getClassLoaderFor to obtain the appropriate class loader for deserialization.

De-serializes a byte array in the context of the class loader of an MBean.

Parameters
name The name of the MBean whose class loader should be used for the de-serialization.
data The byte array to be de-sererialized.
Returns
  • The de-serialized object stream.
Throws
InstanceNotFoundException The MBean specified is not found.
OperationsException Any of the usual Input/Output related exceptions.

public abstract ObjectInputStream deserialize (String className, ObjectName loaderName, byte[] data)

This method is deprecated.
Use getClassLoader to obtain the class loader for deserialization.

De-serializes a byte array in the context of a given MBean class loader. The class loader is the one that loaded the class with name "className". The name of the class loader to be used for loading the specified class is specified. If null, the MBean Server's class loader will be used.

Parameters
className The name of the class whose class loader should be used for the de-serialization.
loaderName The name of the class loader to be used for loading the specified class. If null, the MBean Server's class loader will be used.
data The byte array to be de-sererialized.
Returns
  • The de-serialized object stream.
Throws
InstanceNotFoundException The specified class loader MBean is not found.
OperationsException Any of the usual Input/Output related exceptions.
ReflectionException The specified class could not be loaded by the specified class loader.

public abstract ObjectInputStream deserialize (String className, byte[] data)

This method is deprecated.
Use getClassLoaderRepository() to obtain the class loader repository and use it to deserialize.

De-serializes a byte array in the context of a given MBean class loader. The class loader is found by loading the class className through the Class Loader Repository. The resultant class's class loader is the one to use.

Parameters
className The name of the class whose class loader should be used for the de-serialization.
data The byte array to be de-sererialized.
Returns
  • The de-serialized object stream.
Throws
OperationsException Any of the usual Input/Output related exceptions.
ReflectionException The specified class could not be loaded by the class loader repository

public abstract Object getAttribute (ObjectName name, String attribute)

Gets the value of a specific attribute of a named MBean. The MBean is identified by its object name.

Parameters
name The object name of the MBean from which the attribute is to be retrieved.
attribute A String specifying the name of the attribute to be retrieved.
Returns
  • The value of the retrieved attribute.

public abstract AttributeList getAttributes (ObjectName name, String[] attributes)

Enables the values of several attributes of a named MBean. The MBean is identified by its object name.

Parameters
name The object name of the MBean from which the attributes are retrieved.
attributes A list of the attributes to be retrieved.
Returns
  • The list of the retrieved attributes.

public abstract ClassLoader getClassLoader (ObjectName loaderName)

Return the named ClassLoader.

Parameters
loaderName The ObjectName of the ClassLoader. May be null, in which case the MBean server's own ClassLoader is returned.
Returns
  • The named ClassLoader. If l is the actual ClassLoader with that name, and r is the returned value, then either: What this means is that the ClassLoader may be wrapped in another ClassLoader for security or other reasons.
Throws
InstanceNotFoundException if the named ClassLoader is not found.

public abstract ClassLoader getClassLoaderFor (ObjectName mbeanName)

Return the ClassLoader that was used for loading the class of the named MBean.

Parameters
mbeanName The ObjectName of the MBean.
Returns
  • The ClassLoader used for that MBean. If l is the MBean's actual ClassLoader, and r is the returned value, then either: What this means is that the ClassLoader may be wrapped in another ClassLoader for security or other reasons.
Throws
InstanceNotFoundException if the named MBean is not found.

public abstract ClassLoaderRepository getClassLoaderRepository ()

Return the ClassLoaderRepository for this MBeanServer.

Returns
  • The ClassLoaderRepository for this MBeanServer.

public abstract String getDefaultDomain ()

Returns the default domain used for naming the MBean. The default domain name is used as the domain part in the ObjectName of MBeans if no domain is specified by the user.

Returns
  • the default domain.

public abstract String[] getDomains ()

Returns the list of domains in which any MBean is currently registered. A string is in the returned array if and only if there is at least one MBean registered with an ObjectName whose getDomain() is equal to that string. The order of strings within the returned array is not defined.

Returns
  • the list of domains.

public abstract Integer getMBeanCount ()

Returns the number of MBeans registered in the MBean server.

Returns
  • the number of registered MBeans, wrapped in an Integer. If the caller's permissions are restricted, this number may be greater than the number of MBeans the caller can access.

public abstract MBeanInfo getMBeanInfo (ObjectName name)

This method discovers the attributes and operations that an MBean exposes for management.

Parameters
name The name of the MBean to analyze
Returns
  • An instance of MBeanInfo allowing the retrieval of all attributes and operations of this MBean.

public abstract ObjectInstance getObjectInstance (ObjectName name)

Gets the ObjectInstance for a given MBean registered with the MBean server.

Parameters
name The object name of the MBean.
Returns
  • The ObjectInstance associated with the MBean specified by name. The contained ObjectName is name and the contained class name is getMBeanInfo(name).getClassName().

public abstract Object instantiate (String className, ObjectName loaderName, Object[] params, String[] signature)

Instantiates an object. The class loader to be used is identified by its object name. If the object name of the loader is null, the ClassLoader that loaded the MBean server will be used. The object's class should have a public constructor. The call returns a reference to the newly created object. The newly created object is not registered in the MBean server.

Parameters
className The class name of the object to be instantiated.
loaderName The object name of the class loader to be used.
params An array containing the parameters of the constructor to be invoked.
signature An array containing the signature of the constructor to be invoked.
Returns
  • The newly instantiated object.
Throws
ReflectionException Wraps a java.lang.ClassNotFoundException or the java.lang.Exception that occurred when trying to invoke the object's constructor.
MBeanException The constructor of the object has thrown an exception
InstanceNotFoundException The specified class loader is not registered in the MBean server.
RuntimeOperationsException Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null.

public abstract Object instantiate (String className, Object[] params, String[] signature)

Instantiates an object using the list of all class loaders registered in the MBean server Class Loader Repository. The object's class should have a public constructor. The call returns a reference to the newly created object. The newly created object is not registered in the MBean server.

Parameters
className The class name of the object to be instantiated.
params An array containing the parameters of the constructor to be invoked.
signature An array containing the signature of the constructor to be invoked.
Returns
  • The newly instantiated object.
Throws
ReflectionException Wraps a java.lang.ClassNotFoundException or the java.lang.Exception that occurred when trying to invoke the object's constructor.
MBeanException The constructor of the object has thrown an exception
RuntimeOperationsException Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null.

public abstract Object instantiate (String className)

Instantiates an object using the list of all class loaders registered in the MBean server's Class Loader Repository. The object's class should have a public constructor. This method returns a reference to the newly created object. The newly created object is not registered in the MBean server.

This method is equivalent to instantiate(className, (Object[]) null, (String[]) null).

Parameters
className The class name of the object to be instantiated.
Returns
  • The newly instantiated object.
Throws
ReflectionException Wraps a java.lang.ClassNotFoundException or the java.lang.Exception that occurred when trying to invoke the object's constructor.
MBeanException The constructor of the object has thrown an exception
RuntimeOperationsException Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null.

public abstract Object instantiate (String className, ObjectName loaderName)

Instantiates an object using the class Loader specified by its ObjectName. If the loader name is null, the ClassLoader that loaded the MBean Server will be used. The object's class should have a public constructor. This method returns a reference to the newly created object. The newly created object is not registered in the MBean server.

This method is equivalent to instantiate(className, loaderName, (Object[]) null, (String[]) null).

Parameters
className The class name of the MBean to be instantiated.
loaderName The object name of the class loader to be used.
Returns
  • The newly instantiated object.
Throws
ReflectionException Wraps a java.lang.ClassNotFoundException or the java.lang.Exception that occurred when trying to invoke the object's constructor.
MBeanException The constructor of the object has thrown an exception.
InstanceNotFoundException The specified class loader is not registered in the MBeanServer.
RuntimeOperationsException Wraps a java.lang.IllegalArgumentException: The className passed in parameter is null.

public abstract Object invoke (ObjectName name, String operationName, Object[] params, String[] signature)

Invokes an operation on an MBean.

Parameters
name The object name of the MBean on which the method is to be invoked.
operationName The name of the operation to be invoked.
params An array containing the parameters to be set when the operation is invoked
signature An array containing the signature of the operation. The class objects will be loaded using the same class loader as the one used for loading the MBean on which the operation was invoked.
Returns
  • The object returned by the operation, which represents the result of invoking the operation on the MBean specified.

public abstract boolean isInstanceOf (ObjectName name, String className)

Returns true if the MBean specified is an instance of the specified class, false otherwise.

If name does not name an MBean, this method throws InstanceNotFoundException.

Otherwise, let
X be the MBean named by name,
L be the ClassLoader of X,
N be the class name in X's MBeanInfo.

If N equals className, the result is true.

Otherwise, if L successfully loads className and X is an instance of this class, the result is true.

Otherwise, if L successfully loads both N and className, and the second class is assignable from the first, the result is true.

Otherwise, the result is false.

Parameters
name The ObjectName of the MBean.
className The name of the class.
Returns
  • true if the MBean specified is an instance of the specified class according to the rules above, false otherwise.

public abstract boolean isRegistered (ObjectName name)

Checks whether an MBean, identified by its object name, is already registered with the MBean server.

Parameters
name The object name of the MBean to be checked.
Returns
  • True if the MBean is already registered in the MBean server, false otherwise.

public abstract Set<ObjectInstance> queryMBeans (ObjectName name, QueryExp query)

Gets MBeans controlled by the MBean server. This method allows any of the following to be obtained: All MBeans, a set of MBeans specified by pattern matching on the ObjectName and/or a Query expression, a specific MBean. When the object name is null or no domain and key properties are specified, all objects are to be selected (and filtered if a query is specified). It returns the set of ObjectInstance objects (containing the ObjectName and the Java Class name) for the selected MBeans.

Parameters
name The object name pattern identifying the MBeans to be retrieved. If null or no domain and key properties are specified, all the MBeans registered will be retrieved.
query The query expression to be applied for selecting MBeans. If null no query expression will be applied for selecting MBeans.
Returns
  • A set containing the ObjectInstance objects for the selected MBeans. If no MBean satisfies the query an empty list is returned.

public abstract Set<ObjectName> queryNames (ObjectName name, QueryExp query)

Gets the names of MBeans controlled by the MBean server. This method enables any of the following to be obtained: The names of all MBeans, the names of a set of MBeans specified by pattern matching on the ObjectName and/or a Query expression, a specific MBean name (equivalent to testing whether an MBean is registered). When the object name is null or no domain and key properties are specified, all objects are selected (and filtered if a query is specified). It returns the set of ObjectNames for the MBeans selected.

Parameters
name The object name pattern identifying the MBean names to be retrieved. If null or no domain and key properties are specified, the name of all registered MBeans will be retrieved.
query The query expression to be applied for selecting MBeans. If null no query expression will be applied for selecting MBeans.
Returns
  • A set containing the ObjectNames for the MBeans selected. If no MBean satisfies the query, an empty list is returned.

public abstract ObjectInstance registerMBean (Object object, ObjectName name)

Registers a pre-existing object as an MBean with the MBean server. If the object name given is null, the MBean must provide its own name by implementing the MBeanRegistration interface and returning the name from the preRegister method.

Parameters
object The MBean to be registered as an MBean.
name The object name of the MBean. May be null.
Returns
  • An ObjectInstance, containing the ObjectName and the Java class name of the newly registered MBean. If the contained ObjectName is n, the contained Java class name is getMBeanInfo(n).getClassName().
Throws
InstanceAlreadyExistsException The MBean is already under the control of the MBean server.
MBeanRegistrationException The preRegister (MBeanRegistration interface) method of the MBean has thrown an exception. The MBean will not be registered.
NotCompliantMBeanException This object is not a JMX compliant MBean
RuntimeOperationsException Wraps a java.lang.IllegalArgumentException: The object passed in parameter is null or no object name is specified.

public abstract void removeNotificationListener (ObjectName name, ObjectName listener, NotificationFilter filter, Object handback)

Removes a listener from a registered MBean.

The MBean must have a listener that exactly matches the given listener, filter, and handback parameters. If there is more than one such listener, only one is removed.

The filter and handback parameters may be null if and only if they are null in a listener to be removed.

Parameters
name The name of the MBean on which the listener should be removed.
listener The object name of the listener to be removed.
filter The filter that was specified when the listener was added.
handback The handback that was specified when the listener was added.

public abstract void removeNotificationListener (ObjectName name, ObjectName listener)

Removes a listener from a registered MBean.

If the listener is registered more than once, perhaps with different filters or callbacks, this method will remove all those registrations.

Parameters
name The name of the MBean on which the listener should be removed.
listener The object name of the listener to be removed.

public abstract void removeNotificationListener (ObjectName name, NotificationListener listener)

Removes a listener from a registered MBean.

If the listener is registered more than once, perhaps with different filters or callbacks, this method will remove all those registrations.

Parameters
name The name of the MBean on which the listener should be removed.
listener The listener to be removed.

public abstract void removeNotificationListener (ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback)

Removes a listener from a registered MBean.

The MBean must have a listener that exactly matches the given listener, filter, and handback parameters. If there is more than one such listener, only one is removed.

The filter and handback parameters may be null if and only if they are null in a listener to be removed.

Parameters
name The name of the MBean on which the listener should be removed.
listener The listener to be removed.
filter The filter that was specified when the listener was added.
handback The handback that was specified when the listener was added.

public abstract void setAttribute (ObjectName name, Attribute attribute)

Sets the value of a specific attribute of a named MBean. The MBean is identified by its object name.

Parameters
name The name of the MBean within which the attribute is to be set.
attribute The identification of the attribute to be set and the value it is to be set to.

public abstract AttributeList setAttributes (ObjectName name, AttributeList attributes)

Sets the values of several attributes of a named MBean. The MBean is identified by its object name.

Parameters
name The object name of the MBean within which the attributes are to be set.
attributes A list of attributes: The identification of the attributes to be set and the values they are to be set to.
Returns
  • The list of attributes that were set, with their new values.

public abstract void unregisterMBean (ObjectName name)

Unregisters an MBean from the MBean server. The MBean is identified by its object name. Once the method has been invoked, the MBean may no longer be accessed by its object name.

Parameters
name The object name of the MBean to be unregistered.