/*
 * Copyright (c) 2002, 2007, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package javax.management;


// java import
import java.io.IOException;
import java.util.Set;


This interface represents a way to talk to an MBean server, whether local or remote. The MBeanServer interface, representing a local MBean server, extends this interface. 
Since:
1.5/**
 * This interface represents a way to talk to an MBean server, whether
 * local or remote.  The {@link MBeanServer} interface, representing a
 * local MBean server, extends this interface.
 *
 *
 * @since 1.5
 */
public interface MBeanServerConnection {
    
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).
Params:
className – The class name of the MBean to be instantiated.
name – The object name of the MBean. May be null.
Throws:
ReflectionException – Wraps a
java.lang.ClassNotFoundException or a
java.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 – The
preRegister (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 exception
NotCompliantMBeanException – This class is not a JMX
compliant MBean
RuntimeOperationsException – Wraps a
java.lang.IllegalArgumentException: The className
passed in parameter is null, the ObjectName passed
in parameter contains a pattern or no ObjectName
is specified for the MBean.
IOException – A communication problem occurred when
talking to the MBean server.
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()./**
     * <p>Instantiates and registers an MBean in the MBean server.  The
     * MBean server will use its {@link
     * javax.management.loading.ClassLoaderRepository 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 {@link
     * javax.management.MBeanRegistration MBeanRegistration} interface
     * and returning the name from the {@link
     * MBeanRegistration#preRegister preRegister} method.</p>
     *
     * <p>This method is equivalent to {@link
     * #createMBean(String,ObjectName,Object[],String[])
     * createMBean(className, name, (Object[]) null, (String[])
     * null)}.</p>
     *
     * @param className The class name of the MBean to be instantiated.
     * @param name The object name of the MBean. May be null.
     *
     * @return An <CODE>ObjectInstance</CODE>, containing the
     * <CODE>ObjectName</CODE> and the Java class name of the newly
     * instantiated MBean.  If the contained <code>ObjectName</code>
     * is <code>n</code>, the contained Java class name is
     * <code>{@link #getMBeanInfo getMBeanInfo(n)}.getClassName()</code>.
     *
     * @exception ReflectionException Wraps a
     * <CODE>java.lang.ClassNotFoundException</CODE> or a
     * <CODE>java.lang.Exception</CODE> that occurred
     * when trying to invoke the MBean's constructor.
     * @exception InstanceAlreadyExistsException The MBean is already
     * under the control of the MBean server.
     * @exception MBeanRegistrationException The
     * <CODE>preRegister</CODE> (<CODE>MBeanRegistration</CODE>
     * interface) method of the MBean has thrown an exception. The
     * MBean will not be registered.
     * @exception MBeanException The constructor of the MBean has
     * thrown an exception
     * @exception NotCompliantMBeanException This class is not a JMX
     * compliant MBean
     * @exception RuntimeOperationsException Wraps a
     * <CODE>java.lang.IllegalArgumentException</CODE>: The className
     * passed in parameter is null, the <CODE>ObjectName</CODE> passed
     * in parameter contains a pattern or no <CODE>ObjectName</CODE>
     * is specified for the MBean.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     */
    public ObjectInstance createMBean(String className, ObjectName name)
            throws ReflectionException, InstanceAlreadyExistsException,
                   MBeanRegistrationException, MBeanException,
                   NotCompliantMBeanException, IOException;

    
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).
Params:
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.
Throws:
ReflectionException – Wraps a
java.lang.ClassNotFoundException or a
java.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 – The
preRegister (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 exception
NotCompliantMBeanException – This class is not a JMX
compliant MBean
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, the ObjectName passed
in parameter contains a pattern or no ObjectName
is specified for the MBean.
IOException – A communication problem occurred when
talking to the MBean server.
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()./**
     * <p>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 {@link
     * javax.management.MBeanRegistration MBeanRegistration} interface
     * and returning the name from the {@link
     * MBeanRegistration#preRegister preRegister} method.</p>
     *
     * <p>This method is equivalent to {@link
     * #createMBean(String,ObjectName,ObjectName,Object[],String[])
     * createMBean(className, name, loaderName, (Object[]) null,
     * (String[]) null)}.</p>
     *
     * @param className The class name of the MBean to be instantiated.
     * @param name The object name of the MBean. May be null.
     * @param loaderName The object name of the class loader to be used.
     *
     * @return An <CODE>ObjectInstance</CODE>, containing the
     * <CODE>ObjectName</CODE> and the Java class name of the newly
     * instantiated MBean.  If the contained <code>ObjectName</code>
     * is <code>n</code>, the contained Java class name is
     * <code>{@link #getMBeanInfo getMBeanInfo(n)}.getClassName()</code>.
     *
     * @exception ReflectionException Wraps a
     * <CODE>java.lang.ClassNotFoundException</CODE> or a
     * <CODE>java.lang.Exception</CODE> that occurred when trying to
     * invoke the MBean's constructor.
     * @exception InstanceAlreadyExistsException The MBean is already
     * under the control of the MBean server.
     * @exception MBeanRegistrationException The
     * <CODE>preRegister</CODE> (<CODE>MBeanRegistration</CODE>
     * interface) method of the MBean has thrown an exception. The
     * MBean will not be registered.
     * @exception MBeanException The constructor of the MBean has
     * thrown an exception
     * @exception NotCompliantMBeanException This class is not a JMX
     * compliant MBean
     * @exception InstanceNotFoundException The specified class loader
     * is not registered in the MBean server.
     * @exception RuntimeOperationsException Wraps a
     * <CODE>java.lang.IllegalArgumentException</CODE>: The className
     * passed in parameter is null, the <CODE>ObjectName</CODE> passed
     * in parameter contains a pattern or no <CODE>ObjectName</CODE>
     * is specified for the MBean.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     */
    public ObjectInstance createMBean(String className, ObjectName name,
                                      ObjectName loaderName)
            throws ReflectionException, InstanceAlreadyExistsException,
                   MBeanRegistrationException, MBeanException,
                   NotCompliantMBeanException, InstanceNotFoundException,
                   IOException;


    
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. 
Params:
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.
Throws:
ReflectionException – Wraps a
java.lang.ClassNotFoundException or a
java.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 – The
preRegister (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 exception
NotCompliantMBeanException – This class is not a JMX
compliant MBean
RuntimeOperationsException – Wraps a
java.lang.IllegalArgumentException: The className
passed in parameter is null, the ObjectName passed
in parameter contains a pattern or no ObjectName
is specified for the MBean.
IOException – A communication problem occurred when
talking to the MBean server.
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()./**
     * Instantiates and registers an MBean in the MBean server.  The
     * MBean server will use its {@link
     * javax.management.loading.ClassLoaderRepository 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 {@link
     * javax.management.MBeanRegistration MBeanRegistration} interface
     * and returning the name from the {@link
     * MBeanRegistration#preRegister preRegister} method.
     *
     * @param className The class name of the MBean to be instantiated.
     * @param name The object name of the MBean. May be null.
     * @param params An array containing the parameters of the
     * constructor to be invoked.
     * @param signature An array containing the signature of the
     * constructor to be invoked.
     *
     * @return An <CODE>ObjectInstance</CODE>, containing the
     * <CODE>ObjectName</CODE> and the Java class name of the newly
     * instantiated MBean.  If the contained <code>ObjectName</code>
     * is <code>n</code>, the contained Java class name is
     * <code>{@link #getMBeanInfo getMBeanInfo(n)}.getClassName()</code>.
     *
     * @exception ReflectionException Wraps a
     * <CODE>java.lang.ClassNotFoundException</CODE> or a
     * <CODE>java.lang.Exception</CODE> that occurred when trying to
     * invoke the MBean's constructor.
     * @exception InstanceAlreadyExistsException The MBean is already
     * under the control of the MBean server.
     * @exception MBeanRegistrationException The
     * <CODE>preRegister</CODE> (<CODE>MBeanRegistration</CODE>
     * interface) method of the MBean has thrown an exception. The
     * MBean will not be registered.
     * @exception MBeanException The constructor of the MBean has
     * thrown an exception
     * @exception NotCompliantMBeanException This class is not a JMX
     * compliant MBean
     * @exception RuntimeOperationsException Wraps a
     * <CODE>java.lang.IllegalArgumentException</CODE>: The className
     * passed in parameter is null, the <CODE>ObjectName</CODE> passed
     * in parameter contains a pattern or no <CODE>ObjectName</CODE>
     * is specified for the MBean.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     */
    public ObjectInstance createMBean(String className, ObjectName name,
                                      Object params[], String signature[])
            throws ReflectionException, InstanceAlreadyExistsException,
                   MBeanRegistrationException, MBeanException,
                   NotCompliantMBeanException, IOException;

    
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. 
Params:
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.
loaderName – The object name of the class loader to be used.
Throws:
ReflectionException – Wraps a
java.lang.ClassNotFoundException or a
java.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 – The
preRegister (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 exception
NotCompliantMBeanException – This class is not a JMX
compliant MBean
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, the ObjectName passed
in parameter contains a pattern or no ObjectName
is specified for the MBean.
IOException – A communication problem occurred when
talking to the MBean server.
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()./**
     * 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
     * {@link javax.management.MBeanRegistration MBeanRegistration}
     * interface and returning the name from the {@link
     * MBeanRegistration#preRegister preRegister} method.
     *
     * @param className The class name of the MBean to be instantiated.
     * @param name The object name of the MBean. May be null.
     * @param params An array containing the parameters of the
     * constructor to be invoked.
     * @param signature An array containing the signature of the
     * constructor to be invoked.
     * @param loaderName The object name of the class loader to be used.
     *
     * @return An <CODE>ObjectInstance</CODE>, containing the
     * <CODE>ObjectName</CODE> and the Java class name of the newly
     * instantiated MBean.  If the contained <code>ObjectName</code>
     * is <code>n</code>, the contained Java class name is
     * <code>{@link #getMBeanInfo getMBeanInfo(n)}.getClassName()</code>.
     *
     * @exception ReflectionException Wraps a
     * <CODE>java.lang.ClassNotFoundException</CODE> or a
     * <CODE>java.lang.Exception</CODE> that occurred when trying to
     * invoke the MBean's constructor.
     * @exception InstanceAlreadyExistsException The MBean is already
     * under the control of the MBean server.
     * @exception MBeanRegistrationException The
     * <CODE>preRegister</CODE> (<CODE>MBeanRegistration</CODE>
     * interface) method of the MBean has thrown an exception. The
     * MBean will not be registered.
     * @exception MBeanException The constructor of the MBean has
     * thrown an exception
     * @exception NotCompliantMBeanException This class is not a JMX
     * compliant MBean
     * @exception InstanceNotFoundException The specified class loader
     * is not registered in the MBean server.
     * @exception RuntimeOperationsException Wraps a
     * <CODE>java.lang.IllegalArgumentException</CODE>: The className
     * passed in parameter is null, the <CODE>ObjectName</CODE> passed
     * in parameter contains a pattern or no <CODE>ObjectName</CODE>
     * is specified for the MBean.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     */
    public ObjectInstance createMBean(String className, ObjectName name,
                                      ObjectName loaderName, Object params[],
                                      String signature[])
            throws ReflectionException, InstanceAlreadyExistsException,
                   MBeanRegistrationException, MBeanException,
                   NotCompliantMBeanException, InstanceNotFoundException,
                   IOException;

    
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.
Params:
name – The object name of the MBean to be unregistered.
Throws:
InstanceNotFoundException – The MBean specified is not
registered in the MBean server.
MBeanRegistrationException – The preDeregister
((MBeanRegistration interface) method of the MBean
has thrown an exception.
RuntimeOperationsException – Wraps a
java.lang.IllegalArgumentException: The object name in parameter is null or the MBean you are when trying to unregister is the 
MBeanServerDelegate MBean.
IOException – A communication problem occurred when
talking to the MBean server./**
     * 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.
     *
     * @param name The object name of the MBean to be unregistered.
     *
     * @exception InstanceNotFoundException The MBean specified is not
     * registered in the MBean server.
     * @exception MBeanRegistrationException The preDeregister
     * ((<CODE>MBeanRegistration</CODE> interface) method of the MBean
     * has thrown an exception.
     * @exception RuntimeOperationsException Wraps a
     * <CODE>java.lang.IllegalArgumentException</CODE>: The object
     * name in parameter is null or the MBean you are when trying to
     * unregister is the {@link javax.management.MBeanServerDelegate
     * MBeanServerDelegate} MBean.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     */
    public void unregisterMBean(ObjectName name)
            throws InstanceNotFoundException, MBeanRegistrationException,
                   IOException;

    
Gets the ObjectInstance for a given MBean
registered with the MBean server.
Params:
name – The object name of the MBean.
Throws:
InstanceNotFoundException – The MBean specified is not
registered in the MBean server.
IOException – A communication problem occurred when
talking to the MBean server.
Returns:
The ObjectInstance associated with the MBean
specified by name.  The contained ObjectName
is name and the contained class name is
getMBeanInfo(name).getClassName()./**
     * Gets the <CODE>ObjectInstance</CODE> for a given MBean
     * registered with the MBean server.
     *
     * @param name The object name of the MBean.
     *
     * @return The <CODE>ObjectInstance</CODE> associated with the MBean
     * specified by <VAR>name</VAR>.  The contained <code>ObjectName</code>
     * is <code>name</code> and the contained class name is
     * <code>{@link #getMBeanInfo getMBeanInfo(name)}.getClassName()</code>.
     *
     * @exception InstanceNotFoundException The MBean specified is not
     * registered in the MBean server.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     */
    public ObjectInstance getObjectInstance(ObjectName name)
            throws InstanceNotFoundException, IOException;

    
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.
Params:
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.
Throws:
IOException – A communication problem occurred when
talking to the MBean server.
Returns:
A set containing the ObjectInstance
objects for the selected MBeans.  If no MBean satisfies the
query an empty list is returned./**
     * 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
     * <CODE>ObjectName</CODE> 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
     * <CODE>ObjectInstance</CODE> objects (containing the
     * <CODE>ObjectName</CODE> and the Java Class name) for the
     * selected MBeans.
     *
     * @param 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.
     * @param query The query expression to be applied for selecting
     * MBeans. If null no query expression will be applied for
     * selecting MBeans.
     *
     * @return A set containing the <CODE>ObjectInstance</CODE>
     * objects for the selected MBeans.  If no MBean satisfies the
     * query an empty list is returned.
     *
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     */
    public Set<ObjectInstance> queryMBeans(ObjectName name, QueryExp query)
            throws IOException;

    
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.
Params:
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.
Throws:
IOException – A communication problem occurred when
talking to the MBean server.
Returns:
A set containing the ObjectNames for the MBeans
selected.  If no MBean satisfies the query, an empty list is
returned./**
     * 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 <CODE>ObjectName</CODE> 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.
     *
     * @param 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.
     * @param query The query expression to be applied for selecting
     * MBeans. If null no query expression will be applied for
     * selecting MBeans.
     *
     * @return A set containing the ObjectNames for the MBeans
     * selected.  If no MBean satisfies the query, an empty list is
     * returned.
     *
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     */
    public Set<ObjectName> queryNames(ObjectName name, QueryExp query)
            throws IOException;



    
Checks whether an MBean, identified by its object name, is
already registered with the MBean server.
Params:
name – The object name of the MBean to be checked.
Throws:
RuntimeOperationsException – Wraps a
java.lang.IllegalArgumentException: The object
name in parameter is null.
IOException – A communication problem occurred when
talking to the MBean server.
Returns:
True if the MBean is already registered in the MBean
server, false otherwise./**
     * Checks whether an MBean, identified by its object name, is
     * already registered with the MBean server.
     *
     * @param name The object name of the MBean to be checked.
     *
     * @return True if the MBean is already registered in the MBean
     * server, false otherwise.
     *
     * @exception RuntimeOperationsException Wraps a
     * <CODE>java.lang.IllegalArgumentException</CODE>: The object
     * name in parameter is null.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     */
    public boolean isRegistered(ObjectName name)
            throws IOException;


    
Returns the number of MBeans registered in the MBean server.
Throws:
IOException – A communication problem occurred when
talking to the MBean server.
Returns:
the number of MBeans registered./**
     * Returns the number of MBeans registered in the MBean server.
     *
     * @return the number of MBeans registered.
     *
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     */
    public Integer getMBeanCount()
            throws IOException;

    
Gets the value of a specific attribute of a named MBean. The MBean
is identified by its object name.
Params:
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.
Throws:
AttributeNotFoundException – The attribute specified
is not accessible in the MBean.
MBeanException – Wraps an exception thrown by the
MBean's getter.
InstanceNotFoundException – The MBean specified is not
registered in the MBean server.
ReflectionException – Wraps a
java.lang.Exception thrown when trying to invoke
the setter.
RuntimeOperationsException – Wraps a
java.lang.IllegalArgumentException: The object
name in parameter is null or the attribute in parameter is
null.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
setAttribute
Returns:
 The value of the retrieved attribute./**
     * Gets the value of a specific attribute of a named MBean. The MBean
     * is identified by its object name.
     *
     * @param name The object name of the MBean from which the
     * attribute is to be retrieved.
     * @param attribute A String specifying the name of the attribute
     * to be retrieved.
     *
     * @return  The value of the retrieved attribute.
     *
     * @exception AttributeNotFoundException The attribute specified
     * is not accessible in the MBean.
     * @exception MBeanException Wraps an exception thrown by the
     * MBean's getter.
     * @exception InstanceNotFoundException The MBean specified is not
     * registered in the MBean server.
     * @exception ReflectionException Wraps a
     * <CODE>java.lang.Exception</CODE> thrown when trying to invoke
     * the setter.
     * @exception RuntimeOperationsException Wraps a
     * <CODE>java.lang.IllegalArgumentException</CODE>: The object
     * name in parameter is null or the attribute in parameter is
     * null.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see #setAttribute
     */
    public Object getAttribute(ObjectName name, String attribute)
            throws MBeanException, AttributeNotFoundException,
                   InstanceNotFoundException, ReflectionException,
                   IOException;


    
Enables the values of several attributes of a named MBean. The MBean
is identified by its object name.
Params:
name – The object name of the MBean from which the
attributes are retrieved.
attributes – A list of the attributes to be retrieved.
Throws:
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.
RuntimeOperationsException – Wrap a
java.lang.IllegalArgumentException: The object
name in parameter is null or attributes in parameter is null.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
setAttributes
Returns:
The list of the retrieved attributes./**
     * Enables the values of several attributes of a named MBean. The MBean
     * is identified by its object name.
     *
     * @param name The object name of the MBean from which the
     * attributes are retrieved.
     * @param attributes A list of the attributes to be retrieved.
     *
     * @return The list of the retrieved attributes.
     *
     * @exception InstanceNotFoundException The MBean specified is not
     * registered in the MBean server.
     * @exception ReflectionException An exception occurred when
     * trying to invoke the getAttributes method of a Dynamic MBean.
     * @exception RuntimeOperationsException Wrap a
     * <CODE>java.lang.IllegalArgumentException</CODE>: The object
     * name in parameter is null or attributes in parameter is null.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see #setAttributes
     */
    public AttributeList getAttributes(ObjectName name, String[] attributes)
            throws InstanceNotFoundException, ReflectionException,
                   IOException;

    
Sets the value of a specific attribute of a named MBean. The MBean
is identified by its object name.
Params:
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:
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 a
java.lang.Exception thrown when trying to invoke
the setter.
RuntimeOperationsException – Wraps a
java.lang.IllegalArgumentException: The object
name in parameter is null or the attribute in parameter is
null.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
getAttribute/**
     * Sets the value of a specific attribute of a named MBean. The MBean
     * is identified by its object name.
     *
     * @param name The name of the MBean within which the attribute is
     * to be set.
     * @param attribute The identification of the attribute to be set
     * and the value it is to be set to.
     *
     * @exception InstanceNotFoundException The MBean specified is not
     * registered in the MBean server.
     * @exception AttributeNotFoundException The attribute specified
     * is not accessible in the MBean.
     * @exception InvalidAttributeValueException The value specified
     * for the attribute is not valid.
     * @exception MBeanException Wraps an exception thrown by the
     * MBean's setter.
     * @exception ReflectionException Wraps a
     * <CODE>java.lang.Exception</CODE> thrown when trying to invoke
     * the setter.
     * @exception RuntimeOperationsException Wraps a
     * <CODE>java.lang.IllegalArgumentException</CODE>: The object
     * name in parameter is null or the attribute in parameter is
     * null.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see #getAttribute
     */
    public void setAttribute(ObjectName name, Attribute attribute)
            throws InstanceNotFoundException, AttributeNotFoundException,
                   InvalidAttributeValueException, MBeanException,
                   ReflectionException, IOException;



    
Sets the values of several attributes of a named MBean. The MBean is
identified by its object name.
Params:
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.
Throws:
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.
RuntimeOperationsException – Wraps a
java.lang.IllegalArgumentException: The object
name in parameter is null or attributes in parameter is null.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
getAttributes
Returns:
The list of attributes that were set, with their new
values./**
     * Sets the values of several attributes of a named MBean. The MBean is
     * identified by its object name.
     *
     * @param name The object name of the MBean within which the
     * attributes are to be set.
     * @param attributes A list of attributes: The identification of
     * the attributes to be set and the values they are to be set to.
     *
     * @return The list of attributes that were set, with their new
     * values.
     *
     * @exception InstanceNotFoundException The MBean specified is not
     * registered in the MBean server.
     * @exception ReflectionException An exception occurred when
     * trying to invoke the getAttributes method of a Dynamic MBean.
     * @exception RuntimeOperationsException Wraps a
     * <CODE>java.lang.IllegalArgumentException</CODE>: The object
     * name in parameter is null or attributes in parameter is null.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see #getAttributes
     */
    public AttributeList setAttributes(ObjectName name,
                                       AttributeList attributes)
        throws InstanceNotFoundException, ReflectionException, IOException;

    
Invokes an operation on an MBean.
Params:
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.
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 a
java.lang.Exception thrown while trying to invoke
the method.
IOException – A communication problem occurred when
talking to the MBean server.
Returns:
The object returned by the operation, which represents
the result of invoking the operation on the MBean specified./**
     * Invokes an operation on an MBean.
     *
     * @param name The object name of the MBean on which the method is
     * to be invoked.
     * @param operationName The name of the operation to be invoked.
     * @param params An array containing the parameters to be set when
     * the operation is invoked
     * @param 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.
     *
     * @return The object returned by the operation, which represents
     * the result of invoking the operation on the MBean specified.
     *
     * @exception InstanceNotFoundException The MBean specified is not
     * registered in the MBean server.
     * @exception MBeanException Wraps an exception thrown by the
     * MBean's invoked method.
     * @exception ReflectionException Wraps a
     * <CODE>java.lang.Exception</CODE> thrown while trying to invoke
     * the method.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     */
    public Object invoke(ObjectName name, String operationName,
                         Object params[], String signature[])
            throws InstanceNotFoundException, MBeanException,
                   ReflectionException, IOException;



    
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.
Throws:
IOException – A communication problem occurred when
talking to the MBean server.
Returns:
the default domain./**
     * 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.
     *
     * @return the default domain.
     *
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     */
    public String getDefaultDomain()
            throws IOException;

    
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.
Throws:
IOException – A communication problem occurred when
talking to the MBean server.
Returns:
the list of domains./**
     * <p>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
     * {@link ObjectName#getDomain() getDomain()} is equal to that
     * string.  The order of strings within the returned array is
     * not defined.</p>
     *
     * @return the list of domains.
     *
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     */
    public String[] getDomains()
            throws IOException;

    
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.
Params:
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.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
removeNotificationListener(ObjectName, NotificationListener)
removeNotificationListener(ObjectName, NotificationListener, NotificationFilter, Object)/**
     * <p>Adds a listener to a registered MBean.</p>
     *
     * <P> 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.
     *
     * @param name The name of the MBean on which the listener should
     * be added.
     * @param listener The listener object which will handle the
     * notifications emitted by the registered MBean.
     * @param filter The filter object. If filter is null, no
     * filtering will be performed before handling notifications.
     * @param handback The context to be sent to the listener when a
     * notification is emitted.
     *
     * @exception InstanceNotFoundException The MBean name provided
     * does not match any of the registered MBeans.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see #removeNotificationListener(ObjectName, NotificationListener)
     * @see #removeNotificationListener(ObjectName, NotificationListener,
     * NotificationFilter, Object)
     */
    public void addNotificationListener(ObjectName name,
                                        NotificationListener listener,
                                        NotificationFilter filter,
                                        Object handback)
            throws InstanceNotFoundException, IOException;


    
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.
Params:
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:
InstanceNotFoundException – The MBean name of the
notification listener or of the notification broadcaster does
not match any of the registered MBeans.
RuntimeOperationsException – Wraps an IllegalArgumentException. The MBean named by listener exists but does not implement the NotificationListener interface.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
removeNotificationListener(ObjectName, ObjectName)
removeNotificationListener(ObjectName, ObjectName, NotificationFilter, Object)/**
     * <p>Adds a listener to a registered MBean.</p>
     *
     * <p>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.</p>
     *
     * <p>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.</p>
     *
     * @param name The name of the MBean on which the listener should
     * be added.
     * @param listener The object name of the listener which will
     * handle the notifications emitted by the registered MBean.
     * @param filter The filter object. If filter is null, no
     * filtering will be performed before handling notifications.
     * @param handback The context to be sent to the listener when a
     * notification is emitted.
     *
     * @exception InstanceNotFoundException The MBean name of the
     * notification listener or of the notification broadcaster does
     * not match any of the registered MBeans.
     * @exception RuntimeOperationsException Wraps an {@link
     * IllegalArgumentException}.  The MBean named by
     * <code>listener</code> exists but does not implement the {@link
     * NotificationListener} interface.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see #removeNotificationListener(ObjectName, ObjectName)
     * @see #removeNotificationListener(ObjectName, ObjectName,
     * NotificationFilter, Object)
     */
    public void addNotificationListener(ObjectName name,
                                        ObjectName listener,
                                        NotificationFilter filter,
                                        Object handback)
            throws InstanceNotFoundException, IOException;


    
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.
Params:
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.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
addNotificationListener(ObjectName, ObjectName, NotificationFilter, Object)/**
     * Removes a listener from a registered MBean.
     *
     * <P> If the listener is registered more than once, perhaps with
     * different filters or callbacks, this method will remove all
     * those registrations.
     *
     * @param name The name of the MBean on which the listener should
     * be removed.
     * @param listener The object name of the listener to be removed.
     *
     * @exception InstanceNotFoundException The MBean name provided
     * does not match any of the registered MBeans.
     * @exception ListenerNotFoundException The listener is not
     * registered in the MBean.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see #addNotificationListener(ObjectName, ObjectName,
     * NotificationFilter, Object)
     */
    public void removeNotificationListener(ObjectName name,
                                           ObjectName listener)
        throws InstanceNotFoundException, ListenerNotFoundException,
               IOException;

    
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.
Params:
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.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
addNotificationListener(ObjectName, ObjectName, NotificationFilter, Object)/**
     * <p>Removes a listener from a registered MBean.</p>
     *
     * <p>The MBean must have a listener that exactly matches the
     * given <code>listener</code>, <code>filter</code>, and
     * <code>handback</code> parameters.  If there is more than one
     * such listener, only one is removed.</p>
     *
     * <p>The <code>filter</code> and <code>handback</code> parameters
     * may be null if and only if they are null in a listener to be
     * removed.</p>
     *
     * @param name The name of the MBean on which the listener should
     * be removed.
     * @param listener The object name of the listener to be removed.
     * @param filter The filter that was specified when the listener
     * was added.
     * @param handback The handback that was specified when the
     * listener was added.
     *
     * @exception InstanceNotFoundException The MBean name provided
     * does not match any of the registered MBeans.
     * @exception ListenerNotFoundException The listener is not
     * registered in the MBean, or it is not registered with the given
     * filter and handback.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see #addNotificationListener(ObjectName, ObjectName,
     * NotificationFilter, Object)
     *
     */
    public void removeNotificationListener(ObjectName name,
                                           ObjectName listener,
                                           NotificationFilter filter,
                                           Object handback)
            throws InstanceNotFoundException, ListenerNotFoundException,
                   IOException;


    
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.
Params:
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.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
addNotificationListener(ObjectName, NotificationListener, NotificationFilter, Object)/**
     * <p>Removes a listener from a registered MBean.</p>
     *
     * <P> If the listener is registered more than once, perhaps with
     * different filters or callbacks, this method will remove all
     * those registrations.
     *
     * @param name The name of the MBean on which the listener should
     * be removed.
     * @param listener The listener to be removed.
     *
     * @exception InstanceNotFoundException The MBean name provided
     * does not match any of the registered MBeans.
     * @exception ListenerNotFoundException The listener is not
     * registered in the MBean.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see #addNotificationListener(ObjectName, NotificationListener,
     * NotificationFilter, Object)
     */
    public void removeNotificationListener(ObjectName name,
                                           NotificationListener listener)
            throws InstanceNotFoundException, ListenerNotFoundException,
                   IOException;

    
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.
Params:
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.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
addNotificationListener(ObjectName, NotificationListener, NotificationFilter, Object)/**
     * <p>Removes a listener from a registered MBean.</p>
     *
     * <p>The MBean must have a listener that exactly matches the
     * given <code>listener</code>, <code>filter</code>, and
     * <code>handback</code> parameters.  If there is more than one
     * such listener, only one is removed.</p>
     *
     * <p>The <code>filter</code> and <code>handback</code> parameters
     * may be null if and only if they are null in a listener to be
     * removed.</p>
     *
     * @param name The name of the MBean on which the listener should
     * be removed.
     * @param listener The listener to be removed.
     * @param filter The filter that was specified when the listener
     * was added.
     * @param handback The handback that was specified when the
     * listener was added.
     *
     * @exception InstanceNotFoundException The MBean name provided
     * does not match any of the registered MBeans.
     * @exception ListenerNotFoundException The listener is not
     * registered in the MBean, or it is not registered with the given
     * filter and handback.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see #addNotificationListener(ObjectName, NotificationListener,
     * NotificationFilter, Object)
     *
     */
    public void removeNotificationListener(ObjectName name,
                                           NotificationListener listener,
                                           NotificationFilter filter,
                                           Object handback)
            throws InstanceNotFoundException, ListenerNotFoundException,
                   IOException;

    
This method discovers the attributes and operations that an
MBean exposes for management.
Params:
name – The name of the MBean to analyze
Throws:
IntrospectionException – An exception occurred during
introspection.
InstanceNotFoundException – The MBean specified was
not found.
ReflectionException – An exception occurred when
trying to invoke the getMBeanInfo of a Dynamic MBean.
IOException – A communication problem occurred when
talking to the MBean server.
Returns:
An instance of MBeanInfo allowing the
retrieval of all attributes and operations of this MBean./**
     * This method discovers the attributes and operations that an
     * MBean exposes for management.
     *
     * @param name The name of the MBean to analyze
     *
     * @return An instance of <CODE>MBeanInfo</CODE> allowing the
     * retrieval of all attributes and operations of this MBean.
     *
     * @exception IntrospectionException An exception occurred during
     * introspection.
     * @exception InstanceNotFoundException The MBean specified was
     * not found.
     * @exception ReflectionException An exception occurred when
     * trying to invoke the getMBeanInfo of a Dynamic MBean.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     */
    public MBeanInfo getMBeanInfo(ObjectName name)
            throws InstanceNotFoundException, IntrospectionException,
                   ReflectionException, IOException;


    
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.
Params:
name – The ObjectName of the MBean.
className – The name of the class.
Throws:
InstanceNotFoundException – The MBean specified is not
registered in the MBean server.
IOException – A communication problem occurred when
talking to the MBean server.
See Also:
Class.isInstance
Returns:
true if the MBean specified is an instance of the
specified class according to the rules above, false otherwise./**
     * <p>Returns true if the MBean specified is an instance of the
     * specified class, false otherwise.</p>
     *
     * <p>If <code>name</code> does not name an MBean, this method
     * throws {@link InstanceNotFoundException}.</p>
     *
     * <p>Otherwise, let<br>
     * X be the MBean named by <code>name</code>,<br>
     * L be the ClassLoader of X,<br>
     * N be the class name in X's {@link MBeanInfo}.</p>
     *
     * <p>If N equals <code>className</code>, the result is true.</p>
     *
     * <p>Otherwise, if L successfully loads <code>className</code>
     * and X is an instance of this class, the result is true.
     *
     * <p>Otherwise, if L successfully loads both N and
     * <code>className</code>, and the second class is assignable from
     * the first, the result is true.</p>
     *
     * <p>Otherwise, the result is false.</p>
     *
     * @param name The <CODE>ObjectName</CODE> of the MBean.
     * @param className The name of the class.
     *
     * @return true if the MBean specified is an instance of the
     * specified class according to the rules above, false otherwise.
     *
     * @exception InstanceNotFoundException The MBean specified is not
     * registered in the MBean server.
     * @exception IOException A communication problem occurred when
     * talking to the MBean server.
     *
     * @see Class#isInstance
     */
    public boolean isInstanceOf(ObjectName name, String className)
            throws InstanceNotFoundException, IOException;
}