-
- All Superinterfaces:
- MBeanServerConnection
- All Known Subinterfaces:
- MBeanServerForwarder
public interface MBeanServer extends MBeanServerConnection
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 methodaddNotificationListener
withObjectName
theObjectName
of theMBeanServerDelegate
. ThisObjectName
is:
JMImplementation:type=MBeanServerDelegate
.An object obtained from the
createMBeanServer
ornewMBeanServer
methods of theMBeanServerFactory
class applies security checks to its methods, as follows.First, if there is no security manager (
System.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, and unless otherwise specified,
className
is the string returned byMBeanInfo.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 noclassName
.For the
invoke
method, the caller's permissions must implyMBeanPermission(className, operationName, name, "invoke")
.For the
getAttribute
method, the caller's permissions must implyMBeanPermission(className, attribute, name, "getAttribute")
.For the
getAttributes
method, the caller's permissions must implyMBeanPermission(className, null, name, "getAttribute")
. Additionally, for each attribute a in theAttributeList
, if the caller's permissions do not implyMBeanPermission(className, a, name, "getAttribute")
, the MBean server will behave as if that attribute had not been in the supplied list.For the
setAttribute
method, the caller's permissions must implyMBeanPermission(className, attrName, name, "setAttribute")
, whereattrName
isattribute.getName()
.For the
setAttributes
method, the caller's permissions must implyMBeanPermission(className, null, name, "setAttribute")
. Additionally, for each attribute a in theAttributeList
, if the caller's permissions do not implyMBeanPermission(className, a, name, "setAttribute")
, the MBean server will behave as if that attribute had not been in the supplied list.For the
addNotificationListener
methods, the caller's permissions must implyMBeanPermission(className, null, name, "addNotificationListener")
.For the
removeNotificationListener
methods, the caller's permissions must implyMBeanPermission(className, null, name, "removeNotificationListener")
.For the
getMBeanInfo
method, the caller's permissions must implyMBeanPermission(className, null, name, "getMBeanInfo")
.For the
getObjectInstance
method, the caller's permissions must implyMBeanPermission(className, null, name, "getObjectInstance")
.For the
isInstanceOf
method, the caller's permissions must implyMBeanPermission(className, null, name, "isInstanceOf")
.For the
queryMBeans
method, the caller's permissions must implyMBeanPermission(null, null, null, "queryMBeans")
. Additionally, for each MBean n that matchesname
, if the caller's permissions do not implyMBeanPermission(className, null, n, "queryMBeans")
, the MBean server will behave as if that MBean did not exist.Certain query elements perform operations on the MBean server. If the caller does not have the required permissions for a given MBean, that MBean will not be included in the result of the query. The standard query elements that are affected are
Query.attr(String)
,Query.attr(String,String)
, andQuery.classattr()
.For the
queryNames
method, the checks are the same as forqueryMBeans
except that"queryNames"
is used instead of"queryMBeans"
in theMBeanPermission
objects. Note that a"queryMBeans"
permission implies the corresponding"queryNames"
permission.For the
getDomains
method, the caller's permissions must implyMBeanPermission(null, null, null, "getDomains")
. Additionally, for each domain d in the returned array, if the caller's permissions do not implyMBeanPermission(null, null, new ObjectName("d:x=x"), "getDomains")
, the domain is eliminated from the array. Here,x=x
is any key=value pair, needed to satisfy ObjectName's constructor but not otherwise relevant.For the
getClassLoader
method, the caller's permissions must implyMBeanPermission(className, null, loaderName, "getClassLoader")
.For the
getClassLoaderFor
method, the caller's permissions must implyMBeanPermission(className, null, mbeanName, "getClassLoaderFor")
.For the
getClassLoaderRepository
method, the caller's permissions must implyMBeanPermission(null, null, null, "getClassLoaderRepository")
.For the deprecated
deserialize
methods, the required permissions are the same as for the methods that replace them.For the
instantiate
methods, the caller's permissions must implyMBeanPermission(className, null, null, "instantiate")
, whereclassName
is the name of the class which is to be instantiated.For the
registerMBean
method, the caller's permissions must implyMBeanPermission(className, null, name, "registerMBean")
.If the
MBeanPermission
check succeeds, the MBean's class is validated by checking that itsProtectionDomain
impliesMBeanTrustPermission("register")
.Finally, if the
name
argument is null, anotherMBeanPermission
check is made using theObjectName
returned byMBeanRegistration.preRegister
.For the
createMBean
methods, the caller's permissions must imply the permissions needed by the equivalentinstantiate
followed byregisterMBean
.For the
unregisterMBean
method, the caller's permissions must implyMBeanPermission(className, null, name, "unregisterMBean")
.
- Since:
- 1.5
-
-
Method Summary
Methods Modifier and Type Method and Description void
addNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback)
Adds a listener to a registered MBean.void
addNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback)
Adds a listener to a registered MBean.ObjectInstance
createMBean(String className, ObjectName name)
Instantiates and registers an MBean in the MBean server.ObjectInstance
createMBean(String className, ObjectName name, Object[] params, String[] signature)
Instantiates and registers an MBean in the MBean server.ObjectInstance
createMBean(String className, ObjectName name, ObjectName loaderName)
Instantiates and registers an MBean in the MBean server.ObjectInstance
createMBean(String className, ObjectName name, ObjectName loaderName, Object[] params, String[] signature)
Instantiates and registers an MBean in the MBean server.ObjectInputStream
deserialize(ObjectName name, byte[] data)
Deprecated.UsegetClassLoaderFor
to obtain the appropriate class loader for deserialization.ObjectInputStream
deserialize(String className, byte[] data)
Deprecated.UsegetClassLoaderRepository()
to obtain the class loader repository and use it to deserialize.ObjectInputStream
deserialize(String className, ObjectName loaderName, byte[] data)
Deprecated.UsegetClassLoader
to obtain the class loader for deserialization.Object
getAttribute(ObjectName name, String attribute)
Gets the value of a specific attribute of a named MBean.AttributeList
getAttributes(ObjectName name, String[] attributes)
Retrieves the values of several attributes of a named MBean.ClassLoader
getClassLoader(ObjectName loaderName)
Return the namedClassLoader
.ClassLoader
getClassLoaderFor(ObjectName mbeanName)
Return theClassLoader
that was used for loading the class of the named MBean.ClassLoaderRepository
getClassLoaderRepository()
Return the ClassLoaderRepository for this MBeanServer.String
getDefaultDomain()
Returns the default domain used for naming the MBean.String[]
getDomains()
Returns the list of domains in which any MBean is currently registered.Integer
getMBeanCount()
Returns the number of MBeans registered in the MBean server.MBeanInfo
getMBeanInfo(ObjectName name)
This method discovers the attributes and operations that an MBean exposes for management.ObjectInstance
getObjectInstance(ObjectName name)
Gets theObjectInstance
for a given MBean registered with the MBean server.Object
instantiate(String className)
Instantiates an object using the list of all class loaders registered in the MBean server'sClass Loader Repository
.Object
instantiate(String className, Object[] params, String[] signature)
Instantiates an object using the list of all class loaders registered in the MBean serverClass Loader Repository
.Object
instantiate(String className, ObjectName loaderName)
Instantiates an object using the class Loader specified by itsObjectName
.Object
instantiate(String className, ObjectName loaderName, Object[] params, String[] signature)
Instantiates an object.Object
invoke(ObjectName name, String operationName, Object[] params, String[] signature)
Invokes an operation on an MBean.boolean
isInstanceOf(ObjectName name, String className)
Returns true if the MBean specified is an instance of the specified class, false otherwise.boolean
isRegistered(ObjectName name)
Checks whether an MBean, identified by its object name, is already registered with the MBean server.Set<ObjectInstance>
queryMBeans(ObjectName name, QueryExp query)
Gets MBeans controlled by the MBean server.Set<ObjectName>
queryNames(ObjectName name, QueryExp query)
Gets the names of MBeans controlled by the MBean server.ObjectInstance
registerMBean(Object object, ObjectName name)
Registers a pre-existing object as an MBean with the MBean server.void
removeNotificationListener(ObjectName name, NotificationListener listener)
Removes a listener from a registered MBean.void
removeNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback)
Removes a listener from a registered MBean.void
removeNotificationListener(ObjectName name, ObjectName listener)
Removes a listener from a registered MBean.void
removeNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback)
Removes a listener from a registered MBean.void
setAttribute(ObjectName name, Attribute attribute)
Sets the value of a specific attribute of a named MBean.AttributeList
setAttributes(ObjectName name, AttributeList attributes)
Sets the values of several attributes of a named MBean.void
unregisterMBean(ObjectName name)
Unregisters an MBean from the MBean server.
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-
-
Method Detail
-
createMBean
ObjectInstance createMBean(String className, ObjectName name) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException
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 with the MBean. If the object name given is null, the MBean must provide its own name by implementing theMBeanRegistration
interface and returning the name from thepreRegister
method.This method is equivalent to
createMBean(className, name, (Object[]) null, (String[]) null)
.If this method successfully creates an MBean, a notification is sent as described above.
- Specified by:
createMBean
in interfaceMBeanServerConnection
- 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 theObjectName
and the Java class name of the newly instantiated MBean. If the containedObjectName
isn
, the contained Java class name is
.getMBeanInfo(n)
.getClassName() - Throws:
RuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The className passed in parameter is null, theObjectName
passed in parameter contains a pattern or noObjectName
is specified for the MBean.RuntimeMBeanException
- If the MBean's constructor or itspreRegister
orpostRegister
method threw aRuntimeException
. If thepostRegister
(MBeanRegistration
interface) method of the MBean throws aRuntimeException
, thecreateMBean
method will throw aRuntimeMBeanException
, although the MBean creation and registration succeeded. In such a case, the MBean will be actually registered even though thecreateMBean
method threw an exception. Note thatRuntimeMBeanException
can also be thrown bypreRegister
, in which case the MBean will not be registered.RuntimeErrorException
- If thepostRegister
(MBeanRegistration
interface) method of the MBean throws anError
, thecreateMBean
method will throw aRuntimeErrorException
, although the MBean creation and registration succeeded. In such a case, the MBean will be actually registered even though thecreateMBean
method threw an exception. Note thatRuntimeErrorException
can also be thrown bypreRegister
, in which case the MBean will not be registered.ReflectionException
- Wraps ajava.lang.ClassNotFoundException
or ajava.lang.Exception
that occurred when trying to invoke the MBean's constructor.InstanceAlreadyExistsException
- The MBean is already under the control of the MBean server.MBeanRegistrationException
- ThepreRegister
(MBeanRegistration
interface) method of the MBean has thrown an exception. The MBean will not be registered.MBeanException
- The constructor of the MBean has thrown an exceptionNotCompliantMBeanException
- This class is not a JMX compliant MBean- See Also:
MBeanRegistration
-
createMBean
ObjectInstance createMBean(String className, ObjectName name, ObjectName loaderName) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException, InstanceNotFoundException
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 with 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 thepreRegister
method.This method is equivalent to
createMBean(className, name, loaderName, (Object[]) null, (String[]) null)
.If this method successfully creates an MBean, a notification is sent as described above.
- Specified by:
createMBean
in interfaceMBeanServerConnection
- 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 theObjectName
and the Java class name of the newly instantiated MBean. If the containedObjectName
isn
, the contained Java class name is
.getMBeanInfo(n)
.getClassName() - Throws:
RuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The className passed in parameter is null, theObjectName
passed in parameter contains a pattern or noObjectName
is specified for the MBean.RuntimeMBeanException
- If the MBean's constructor or itspreRegister
orpostRegister
method threw aRuntimeException
. If thepostRegister
(MBeanRegistration
interface) method of the MBean throws aRuntimeException
, thecreateMBean
method will throw aRuntimeMBeanException
, although the MBean creation and registration succeeded. In such a case, the MBean will be actually registered even though thecreateMBean
method threw an exception. Note thatRuntimeMBeanException
can also be thrown bypreRegister
, in which case the MBean will not be registered.RuntimeErrorException
- If thepostRegister
(MBeanRegistration
interface) method of the MBean throws anError
, thecreateMBean
method will throw aRuntimeErrorException
, although the MBean creation and registration succeeded. In such a case, the MBean will be actually registered even though thecreateMBean
method threw an exception. Note thatRuntimeErrorException
can also be thrown bypreRegister
, in which case the MBean will not be registered.ReflectionException
- Wraps ajava.lang.ClassNotFoundException
or ajava.lang.Exception
that occurred when trying to invoke the MBean's constructor.InstanceAlreadyExistsException
- The MBean is already under the control of the MBean server.MBeanRegistrationException
- ThepreRegister
(MBeanRegistration
interface) method of the MBean has thrown an exception. The MBean will not be registered.MBeanException
- The constructor of the MBean has thrown an exceptionNotCompliantMBeanException
- This class is not a JMX compliant MBeanInstanceNotFoundException
- The specified class loader is not registered in the MBean server.- See Also:
MBeanRegistration
-
createMBean
ObjectInstance createMBean(String className, ObjectName name, Object[] params, String[] signature) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException
Instantiates and registers an MBean in the MBean server. The MBean server will use itsDefault Loader Repository
to load the class of the MBean. An object name is associated with the MBean. If the object name given is null, the MBean must provide its own name by implementing theMBeanRegistration
interface and returning the name from thepreRegister
method.If this method successfully creates an MBean, a notification is sent as described above.
- Specified by:
createMBean
in interfaceMBeanServerConnection
- 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 theObjectName
and the Java class name of the newly instantiated MBean. If the containedObjectName
isn
, the contained Java class name is
.getMBeanInfo(n)
.getClassName() - Throws:
RuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The className passed in parameter is null, theObjectName
passed in parameter contains a pattern or noObjectName
is specified for the MBean.RuntimeMBeanException
- If the MBean's constructor or itspreRegister
orpostRegister
method threw aRuntimeException
. If thepostRegister
(MBeanRegistration
interface) method of the MBean throws aRuntimeException
, thecreateMBean
method will throw aRuntimeMBeanException
, although the MBean creation and registration succeeded. In such a case, the MBean will be actually registered even though thecreateMBean
method threw an exception. Note thatRuntimeMBeanException
can also be thrown bypreRegister
, in which case the MBean will not be registered.RuntimeErrorException
- If thepostRegister
(MBeanRegistration
interface) method of the MBean throws anError
, thecreateMBean
method will throw aRuntimeErrorException
, although the MBean creation and registration succeeded. In such a case, the MBean will be actually registered even though thecreateMBean
method threw an exception. Note thatRuntimeErrorException
can also be thrown bypreRegister
, in which case the MBean will not be registered.ReflectionException
- Wraps ajava.lang.ClassNotFoundException
or ajava.lang.Exception
that occurred when trying to invoke the MBean's constructor.InstanceAlreadyExistsException
- The MBean is already under the control of the MBean server.MBeanRegistrationException
- ThepreRegister
(MBeanRegistration
interface) method of the MBean has thrown an exception. The MBean will not be registered.MBeanException
- The constructor of the MBean has thrown an exceptionNotCompliantMBeanException
- This class is not a JMX compliant MBean- See Also:
MBeanRegistration
-
createMBean
ObjectInstance createMBean(String className, ObjectName name, ObjectName loaderName, Object[] params, String[] signature) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException, InstanceNotFoundException
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 with 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 thepreRegister
method.If this method successfully creates an MBean, a notification is sent as described above.
- Specified by:
createMBean
in interfaceMBeanServerConnection
- 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 theObjectName
and the Java class name of the newly instantiated MBean. If the containedObjectName
isn
, the contained Java class name is
.getMBeanInfo(n)
.getClassName() - Throws:
RuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The className passed in parameter is null, theObjectName
passed in parameter contains a pattern or noObjectName
is specified for the MBean.RuntimeMBeanException
- The MBean's constructor or itspreRegister
orpostRegister
method threw aRuntimeException
. If thepostRegister
(MBeanRegistration
interface) method of the MBean throws aRuntimeException
, thecreateMBean
method will throw aRuntimeMBeanException
, although the MBean creation and registration succeeded. In such a case, the MBean will be actually registered even though thecreateMBean
method threw an exception. Note thatRuntimeMBeanException
can also be thrown bypreRegister
, in which case the MBean will not be registered.RuntimeErrorException
- If thepostRegister
method (MBeanRegistration
interface) method of the MBean throws anError
, thecreateMBean
method will throw aRuntimeErrorException
, although the MBean creation and registration succeeded. In such a case, the MBean will be actually registered even though thecreateMBean
method threw an exception. Note thatRuntimeErrorException
can also be thrown bypreRegister
, in which case the MBean will not be registered.ReflectionException
- Wraps ajava.lang.ClassNotFoundException
or ajava.lang.Exception
that occurred when trying to invoke the MBean's constructor.InstanceAlreadyExistsException
- The MBean is already under the control of the MBean server.MBeanRegistrationException
- ThepreRegister
(MBeanRegistration
interface) method of the MBean has thrown an exception. The MBean will not be registered.MBeanException
- The constructor of the MBean has thrown an exceptionNotCompliantMBeanException
- This class is not a JMX compliant MBeanInstanceNotFoundException
- The specified class loader is not registered in the MBean server.- See Also:
MBeanRegistration
-
registerMBean
ObjectInstance registerMBean(Object object, ObjectName name) throws InstanceAlreadyExistsException, MBeanRegistrationException, NotCompliantMBeanException
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 thepreRegister
method.If this method successfully registers an MBean, a notification is sent as described above.
- Parameters:
object
- The MBean to be registered as an MBean.name
- The object name of the MBean. May be null.- Returns:
- An
ObjectInstance
, containing theObjectName
and the Java class name of the newly registered MBean. If the containedObjectName
isn
, the contained Java class name is
.getMBeanInfo(n)
.getClassName() - Throws:
InstanceAlreadyExistsException
- The MBean is already under the control of the MBean server.MBeanRegistrationException
- ThepreRegister
(MBeanRegistration
interface) method of the MBean has thrown an exception. The MBean will not be registered.RuntimeMBeanException
- If thepostRegister
(MBeanRegistration
interface) method of the MBean throws aRuntimeException
, theregisterMBean
method will throw aRuntimeMBeanException
, although the MBean registration succeeded. In such a case, the MBean will be actually registered even though theregisterMBean
method threw an exception. Note thatRuntimeMBeanException
can also be thrown bypreRegister
, in which case the MBean will not be registered.RuntimeErrorException
- If thepostRegister
(MBeanRegistration
interface) method of the MBean throws anError
, theregisterMBean
method will throw aRuntimeErrorException
, although the MBean registration succeeded. In such a case, the MBean will be actually registered even though theregisterMBean
method threw an exception. Note thatRuntimeErrorException
can also be thrown bypreRegister
, in which case the MBean will not be registered.NotCompliantMBeanException
- This object is not a JMX compliant MBeanRuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The object passed in parameter is null or no object name is specified.- See Also:
MBeanRegistration
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unregisterMBean
void unregisterMBean(ObjectName name) throws InstanceNotFoundException, MBeanRegistrationException
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.If this method successfully unregisters an MBean, a notification is sent as described above.
- Specified by:
unregisterMBean
in interfaceMBeanServerConnection
- Parameters:
name
- The object name of the MBean to be unregistered.- Throws:
RuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The object name in parameter is null or the MBean you are when trying to unregister is theMBeanServerDelegate
MBean.RuntimeMBeanException
- If thepostDeregister
(MBeanRegistration
interface) method of the MBean throws aRuntimeException
, theunregisterMBean
method will throw aRuntimeMBeanException
, although the MBean unregistration succeeded. In such a case, the MBean will be actually unregistered even though theunregisterMBean
method threw an exception. Note thatRuntimeMBeanException
can also be thrown bypreDeregister
, in which case the MBean will remain registered.RuntimeErrorException
- If thepostDeregister
(MBeanRegistration
interface) method of the MBean throws anError
, theunregisterMBean
method will throw aRuntimeErrorException
, although the MBean unregistration succeeded. In such a case, the MBean will be actually unregistered even though theunregisterMBean
method threw an exception. Note thatRuntimeMBeanException
can also be thrown bypreDeregister
, in which case the MBean will remain registered.InstanceNotFoundException
- The MBean specified is not registered in the MBean server.MBeanRegistrationException
- The preDeregister ((MBeanRegistration
interface) method of the MBean has thrown an exception.- See Also:
MBeanRegistration
-
getObjectInstance
ObjectInstance getObjectInstance(ObjectName name) throws InstanceNotFoundException
Description copied from interface:MBeanServerConnection
Gets theObjectInstance
for a given MBean registered with the MBean server.- Specified by:
getObjectInstance
in interfaceMBeanServerConnection
- Parameters:
name
- The object name of the MBean.- Returns:
- The
ObjectInstance
associated with the MBean specified by name. The containedObjectName
isname
and the contained class name is
.getMBeanInfo(name)
.getClassName() - Throws:
InstanceNotFoundException
- The MBean specified is not registered in the MBean server.
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queryMBeans
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 theObjectName
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 ofObjectInstance
objects (containing theObjectName
and the Java Class name) for the selected MBeans.- Specified by:
queryMBeans
in interfaceMBeanServerConnection
- 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. - Throws:
RuntimeOperationsException
-
queryNames
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 theObjectName
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.- Specified by:
queryNames
in interfaceMBeanServerConnection
- 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.
- Throws:
RuntimeOperationsException
-
isRegistered
boolean isRegistered(ObjectName name)
Description copied from interface:MBeanServerConnection
Checks whether an MBean, identified by its object name, is already registered with the MBean server.- Specified by:
isRegistered
in interfaceMBeanServerConnection
- 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.
- Throws:
RuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The object name in parameter is null.
-
getMBeanCount
Integer getMBeanCount()
Returns the number of MBeans registered in the MBean server.- Specified by:
getMBeanCount
in interfaceMBeanServerConnection
- 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.
-
getAttribute
Object getAttribute(ObjectName name, String attribute) throws MBeanException, AttributeNotFoundException, InstanceNotFoundException, ReflectionException
Description copied from interface:MBeanServerConnection
Gets the value of a specific attribute of a named MBean. The MBean is identified by its object name.- Specified by:
getAttribute
in interfaceMBeanServerConnection
- 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.
- Throws:
RuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The object name in parameter is null or the attribute in parameter is null.MBeanException
- Wraps an exception thrown by the MBean's getter.AttributeNotFoundException
- The attribute specified is not accessible in the MBean.InstanceNotFoundException
- The MBean specified is not registered in the MBean server.ReflectionException
- Wraps ajava.lang.Exception
thrown when trying to invoke the setter.- See Also:
MBeanServerConnection.setAttribute(javax.management.ObjectName, javax.management.Attribute)
-
getAttributes
AttributeList getAttributes(ObjectName name, String[] attributes) throws InstanceNotFoundException, ReflectionException
Description copied from interface:MBeanServerConnection
Retrieves the values of several attributes of a named MBean. The MBean is identified by its object name.
If one or more attributes cannot be retrieved for some reason, they will be omitted from the returned
AttributeList
. The caller should check that the list is the same size as theattributes
array. To discover what problem prevented a given attribute from being retrieved, callgetAttribute
for that attribute.Here is an example of calling this method and checking that it succeeded in retrieving all the requested attributes:
String[] attrNames = ...; AttributeList list = mbeanServerConnection.getAttributes(objectName, attrNames); if (list.size() == attrNames.length) System.out.println("All attributes were retrieved successfully"); else {
List<String>
missing = newArrayList<String>
(Arrays.asList
(attrNames)); for (Attribute a : list.asList()) missing.remove(a.getName()); System.out.println("Did not retrieve: " + missing); }- Specified by:
getAttributes
in interfaceMBeanServerConnection
- 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.
- Throws:
RuntimeOperationsException
- Wrap ajava.lang.IllegalArgumentException
: The object name in parameter is null or attributes in parameter is null.InstanceNotFoundException
- The MBean specified is not registered in the MBean server.ReflectionException
- An exception occurred when trying to invoke the getAttributes method of a Dynamic MBean.- See Also:
MBeanServerConnection.setAttributes(javax.management.ObjectName, javax.management.AttributeList)
-
setAttribute
void setAttribute(ObjectName name, Attribute attribute) throws InstanceNotFoundException, AttributeNotFoundException, InvalidAttributeValueException, MBeanException, ReflectionException
Description copied from interface:MBeanServerConnection
Sets the value of a specific attribute of a named MBean. The MBean is identified by its object name.- Specified by:
setAttribute
in interfaceMBeanServerConnection
- 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.- Throws:
RuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The object name in parameter is null or the attribute in parameter is null.InstanceNotFoundException
- The MBean specified is not registered in the MBean server.AttributeNotFoundException
- The attribute specified is not accessible in the MBean.InvalidAttributeValueException
- The value specified for the attribute is not valid.MBeanException
- Wraps an exception thrown by the MBean's setter.ReflectionException
- Wraps ajava.lang.Exception
thrown when trying to invoke the setter.- See Also:
MBeanServerConnection.getAttribute(javax.management.ObjectName, java.lang.String)
-
setAttributes
AttributeList setAttributes(ObjectName name, AttributeList attributes) throws InstanceNotFoundException, ReflectionException
Description copied from interface:MBeanServerConnection
Sets the values of several attributes of a named MBean. The MBean is identified by its object name.
If one or more attributes cannot be set for some reason, they will be omitted from the returned
AttributeList
. The caller should check that the inputAttributeList
is the same size as the output one. To discover what problem prevented a given attribute from being retrieved, it will usually be possible to callsetAttribute
for that attribute, although this is not guaranteed to work. (For example, the values of two attributes may have been rejected because they were inconsistent with each other. Setting one of them alone might be allowed.)Here is an example of calling this method and checking that it succeeded in setting all the requested attributes:
AttributeList inputAttrs = ...; AttributeList outputAttrs = mbeanServerConnection.setAttributes(objectName, inputAttrs); if (inputAttrs.size() == outputAttrs.size()) System.out.println("All attributes were set successfully"); else {
List<String>
missing = newArrayList<String>
(); for (Attribute a : inputAttrs.asList()) missing.add(a.getName()); for (Attribute a : outputAttrs.asList()) missing.remove(a.getName()); System.out.println("Did not set: " + missing); }- Specified by:
setAttributes
in interfaceMBeanServerConnection
- 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.
- Throws:
RuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The object name in parameter is null or attributes in parameter is null.InstanceNotFoundException
- The MBean specified is not registered in the MBean server.ReflectionException
- An exception occurred when trying to invoke the getAttributes method of a Dynamic MBean.- See Also:
MBeanServerConnection.getAttributes(javax.management.ObjectName, java.lang.String[])
-
invoke
Object invoke(ObjectName name, String operationName, Object[] params, String[] signature) throws InstanceNotFoundException, MBeanException, ReflectionException
Description copied from interface:MBeanServerConnection
Invokes an operation on an MBean.
Because of the need for a
signature
to differentiate possibly-overloaded operations, it is much simpler to invoke operations through an MBean proxy where possible. For example, suppose you have a Standard MBean interface like this:public interface FooMBean { public int countMatches(String[] patterns, boolean ignoreCase); }
The
countMatches
operation can be invoked as follows:String[] myPatterns = ...; int count = (Integer) mbeanServerConnection.invoke( objectName, "countMatches", new Object[] {myPatterns, true}, new String[] {String[].class.getName(), boolean.class.getName()});
Alternatively, it can be invoked through a proxy as follows:
String[] myPatterns = ...; FooMBean fooProxy = JMX.newMBeanProxy( mbeanServerConnection, objectName, FooMBean.class); int count = fooProxy.countMatches(myPatterns, true);
- Specified by:
invoke
in interfaceMBeanServerConnection
- 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 invokedsignature
- An array containing the signature of the operation, an array of class names in the format returned byClass.getName()
. 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.
- Throws:
InstanceNotFoundException
- The MBean specified is not registered in the MBean server.MBeanException
- Wraps an exception thrown by the MBean's invoked method.ReflectionException
- Wraps ajava.lang.Exception
thrown while trying to invoke the method.
-
getDefaultDomain
String getDefaultDomain()
Description copied from interface:MBeanServerConnection
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.- Specified by:
getDefaultDomain
in interfaceMBeanServerConnection
- Returns:
- the default domain.
-
getDomains
String[] getDomains()
Description copied from interface:MBeanServerConnection
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.- Specified by:
getDomains
in interfaceMBeanServerConnection
- Returns:
- the list of domains.
-
addNotificationListener
void addNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException
Adds a listener to a registered MBean. Notifications emitted by the MBean will be forwarded 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.- Specified by:
addNotificationListener
in interfaceMBeanServerConnection
- 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.- Throws:
InstanceNotFoundException
- The MBean name provided does not match any of the registered MBeans.- See Also:
MBeanServerConnection.removeNotificationListener(ObjectName, NotificationListener)
,MBeanServerConnection.removeNotificationListener(ObjectName, NotificationListener, NotificationFilter, Object)
-
addNotificationListener
void addNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException
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.
- Specified by:
addNotificationListener
in interfaceMBeanServerConnection
- 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.- Throws:
RuntimeOperationsException
- Wraps anIllegalArgumentException
. The MBean named bylistener
exists but does not implement theNotificationListener
interface.InstanceNotFoundException
- The MBean name of the notification listener or of the notification broadcaster does not match any of the registered MBeans.- See Also:
MBeanServerConnection.removeNotificationListener(ObjectName, ObjectName)
,MBeanServerConnection.removeNotificationListener(ObjectName, ObjectName, NotificationFilter, Object)
-
removeNotificationListener
void removeNotificationListener(ObjectName name, ObjectName listener) throws InstanceNotFoundException, ListenerNotFoundException
Description copied from interface:MBeanServerConnection
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.
- Specified by:
removeNotificationListener
in interfaceMBeanServerConnection
- Parameters:
name
- The name of the MBean on which the listener should be removed.listener
- The object name of the listener to be removed.- Throws:
InstanceNotFoundException
- The MBean name provided does not match any of the registered MBeans.ListenerNotFoundException
- The listener is not registered in the MBean.- See Also:
MBeanServerConnection.addNotificationListener(ObjectName, ObjectName, NotificationFilter, Object)
-
removeNotificationListener
void removeNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException, ListenerNotFoundException
Description copied from interface:MBeanServerConnection
Removes a listener from a registered MBean.
The MBean must have a listener that exactly matches the given
listener
,filter
, andhandback
parameters. If there is more than one such listener, only one is removed.The
filter
andhandback
parameters may be null if and only if they are null in a listener to be removed.- Specified by:
removeNotificationListener
in interfaceMBeanServerConnection
- 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.- Throws:
InstanceNotFoundException
- The MBean name provided does not match any of the registered MBeans.ListenerNotFoundException
- The listener is not registered in the MBean, or it is not registered with the given filter and handback.- See Also:
MBeanServerConnection.addNotificationListener(ObjectName, ObjectName, NotificationFilter, Object)
-
removeNotificationListener
void removeNotificationListener(ObjectName name, NotificationListener listener) throws InstanceNotFoundException, ListenerNotFoundException
Description copied from interface:MBeanServerConnection
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.
- Specified by:
removeNotificationListener
in interfaceMBeanServerConnection
- Parameters:
name
- The name of the MBean on which the listener should be removed.listener
- The listener to be removed.- Throws:
InstanceNotFoundException
- The MBean name provided does not match any of the registered MBeans.ListenerNotFoundException
- The listener is not registered in the MBean.- See Also:
MBeanServerConnection.addNotificationListener(ObjectName, NotificationListener, NotificationFilter, Object)
-
removeNotificationListener
void removeNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException, ListenerNotFoundException
Description copied from interface:MBeanServerConnection
Removes a listener from a registered MBean.
The MBean must have a listener that exactly matches the given
listener
,filter
, andhandback
parameters. If there is more than one such listener, only one is removed.The
filter
andhandback
parameters may be null if and only if they are null in a listener to be removed.- Specified by:
removeNotificationListener
in interfaceMBeanServerConnection
- 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.- Throws:
InstanceNotFoundException
- The MBean name provided does not match any of the registered MBeans.ListenerNotFoundException
- The listener is not registered in the MBean, or it is not registered with the given filter and handback.- See Also:
MBeanServerConnection.addNotificationListener(ObjectName, NotificationListener, NotificationFilter, Object)
-
getMBeanInfo
MBeanInfo getMBeanInfo(ObjectName name) throws InstanceNotFoundException, IntrospectionException, ReflectionException
Description copied from interface:MBeanServerConnection
This method discovers the attributes and operations that an MBean exposes for management.- Specified by:
getMBeanInfo
in interfaceMBeanServerConnection
- 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. - Throws:
InstanceNotFoundException
- The MBean specified was not found.IntrospectionException
- An exception occurred during introspection.ReflectionException
- An exception occurred when trying to invoke the getMBeanInfo of a Dynamic MBean.
-
isInstanceOf
boolean isInstanceOf(ObjectName name, String className) throws InstanceNotFoundException
Description copied from interface:MBeanServerConnection
Returns true if the MBean specified is an instance of the specified class, false otherwise.
If
name
does not name an MBean, this method throwsInstanceNotFoundException
.Otherwise, let
X be the MBean named byname
,
L be the ClassLoader of X,
N be the class name in X'sMBeanInfo
.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.
- Specified by:
isInstanceOf
in interfaceMBeanServerConnection
- Parameters:
name
- TheObjectName
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.
- Throws:
InstanceNotFoundException
- The MBean specified is not registered in the MBean server.- See Also:
Class.isInstance(java.lang.Object)
-
instantiate
Object instantiate(String className) throws ReflectionException, MBeanException
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 ajava.lang.ClassNotFoundException
or thejava.lang.Exception
that occurred when trying to invoke the object's constructor.MBeanException
- The constructor of the object has thrown an exceptionRuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The className passed in parameter is null.
-
instantiate
Object instantiate(String className, ObjectName loaderName) throws ReflectionException, MBeanException, InstanceNotFoundException
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 ajava.lang.ClassNotFoundException
or thejava.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 ajava.lang.IllegalArgumentException
: The className passed in parameter is null.
-
instantiate
Object instantiate(String className, Object[] params, String[] signature) throws ReflectionException, MBeanException
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 ajava.lang.ClassNotFoundException
or thejava.lang.Exception
that occurred when trying to invoke the object's constructor.MBeanException
- The constructor of the object has thrown an exceptionRuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The className passed in parameter is null.
-
instantiate
Object instantiate(String className, ObjectName loaderName, Object[] params, String[] signature) throws ReflectionException, MBeanException, InstanceNotFoundException
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.params
- An array containing the parameters of the constructor to be invoked.signature
- An array containing the signature of the constructor to be invoked.loaderName
- The object name of the class loader to be used.- Returns:
- The newly instantiated object.
- Throws:
ReflectionException
- Wraps ajava.lang.ClassNotFoundException
or thejava.lang.Exception
that occurred when trying to invoke the object's constructor.MBeanException
- The constructor of the object has thrown an exceptionInstanceNotFoundException
- The specified class loader is not registered in the MBean server.RuntimeOperationsException
- Wraps ajava.lang.IllegalArgumentException
: The className passed in parameter is null.
-
deserialize
@Deprecated ObjectInputStream deserialize(ObjectName name, byte[] data) throws InstanceNotFoundException, OperationsException
Deprecated. UsegetClassLoaderFor
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.
-
deserialize
@Deprecated ObjectInputStream deserialize(String className, byte[] data) throws OperationsException, ReflectionException
Deprecated. UsegetClassLoaderRepository()
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 theClass 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
-
deserialize
@Deprecated ObjectInputStream deserialize(String className, ObjectName loaderName, byte[] data) throws InstanceNotFoundException, OperationsException, ReflectionException
Deprecated. UsegetClassLoader
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.data
- The byte array to be de-sererialized.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.- 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.
-
getClassLoaderFor
ClassLoader getClassLoaderFor(ObjectName mbeanName) throws InstanceNotFoundException
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:
- r is identical to l; or
- the result of r
.loadClass(s)
is the same as l.loadClass(s)
for any string s.
- Throws:
InstanceNotFoundException
- if the named MBean is not found.
-
getClassLoader
ClassLoader getClassLoader(ObjectName loaderName) throws InstanceNotFoundException
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:
- r is identical to l; or
- the result of r
.loadClass(s)
is the same as l.loadClass(s)
for any string s.
- Throws:
InstanceNotFoundException
- if the named ClassLoader is not found.
-
getClassLoaderRepository
ClassLoaderRepository getClassLoaderRepository()
Return the ClassLoaderRepository for this MBeanServer.
- Returns:
- The ClassLoaderRepository for this MBeanServer.
-
-
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Dokument erstellt 11/06/2005, zuletzt geändert 04/03/2020
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-rf-javax/management/MBeanServer.html
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