jdk/src/share/classes/com/sun/jmx/interceptor/MBeanServerInterceptor.java
changeset 1156 bbc2d15aaf7a
parent 2 90ce3da70b43
child 5506 202f599c92aa
--- a/jdk/src/share/classes/com/sun/jmx/interceptor/MBeanServerInterceptor.java	Wed Sep 03 14:31:17 2008 +0200
+++ b/jdk/src/share/classes/com/sun/jmx/interceptor/MBeanServerInterceptor.java	Thu Sep 04 14:46:36 2008 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2002-2008 Sun Microsystems, Inc.  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
@@ -25,35 +25,14 @@
 
 package com.sun.jmx.interceptor;
 
-import java.util.Set;
 
-// RI import
-import javax.management.DynamicMBean;
-import javax.management.AttributeNotFoundException;
+import java.io.ObjectInputStream;
+import javax.management.InstanceNotFoundException;
 import javax.management.MBeanException;
-import javax.management.ReflectionException;
-import javax.management.MBeanAttributeInfo;
-import javax.management.MBeanInfo;
-import javax.management.QueryExp;
-import javax.management.NotificationListener;
-import javax.management.NotificationFilter;
-import javax.management.ListenerNotFoundException;
-import javax.management.IntrospectionException;
+import javax.management.MBeanServer;
+import javax.management.ObjectName;
 import javax.management.OperationsException;
-import javax.management.MBeanNotificationInfo;
-import javax.management.JMRuntimeException;
-import javax.management.InstanceNotFoundException;
-import javax.management.NotCompliantMBeanException;
-import javax.management.MBeanRegistrationException;
-import javax.management.InstanceAlreadyExistsException;
-import javax.management.InvalidAttributeValueException;
-import javax.management.ObjectName;
-import javax.management.ObjectInstance;
-import javax.management.Attribute;
-import javax.management.AttributeList;
-import javax.management.RuntimeOperationsException;
-import javax.management.MBeanServerConnection;
-import javax.management.MBeanServerDelegate;
+import javax.management.ReflectionException;
 import javax.management.loading.ClassLoaderRepository;
 
 /**
@@ -85,618 +64,67 @@
  *
  * @since 1.5
  */
-public interface MBeanServerInterceptor extends MBeanServerConnection {
+public interface MBeanServerInterceptor extends MBeanServer {
     /**
-     * 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
-     * javax.management.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.
-     *
-     * @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 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.
+     * This method should never be called.
+     * Usually hrows UnsupportedOperationException.
      */
-    public ObjectInstance createMBean(String className, ObjectName name,
-                                      Object params[], String signature[])
-            throws ReflectionException, InstanceAlreadyExistsException,
-                   MBeanRegistrationException, MBeanException,
-                   NotCompliantMBeanException;
-
+    public Object instantiate(String className)
+            throws ReflectionException, MBeanException;
     /**
-     * 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
-     * javax.management.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.
-     *
-     * @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 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.
-     *
+     * This method should never be called.
+     * Usually throws UnsupportedOperationException.
      */
-    public ObjectInstance createMBean(String className, ObjectName name,
-                                      ObjectName loaderName, Object params[],
-                                      String signature[])
-            throws ReflectionException, InstanceAlreadyExistsException,
-                   MBeanRegistrationException, MBeanException,
-                   NotCompliantMBeanException, InstanceNotFoundException;
-
+    public Object instantiate(String className, ObjectName loaderName)
+            throws ReflectionException, MBeanException,
+            InstanceNotFoundException;
     /**
-     * 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 {@link
-     * javax.management.MBeanRegistration MBeanRegistration} interface
-     * and returning the name from the {@link
-     * javax.management.MBeanRegistration#preRegister preRegister} method.
-     *
-     * @param object The  MBean to be registered as an MBean.
-     * @param name The object name of the MBean. May be null.
-     *
-     * @return The <CODE>ObjectInstance</CODE> for the MBean that has
-     * been registered.
-     *
-     * @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 NotCompliantMBeanException This object is not a JMX
-     * compliant MBean
-     * @exception RuntimeOperationsException Wraps a
-     * <CODE>java.lang.IllegalArgumentException</CODE>: The object
-     * passed in parameter is null or no object name is specified.
+     * This method should never be called.
+     * Usually throws UnsupportedOperationException.
      */
-    public ObjectInstance registerMBean(Object object, ObjectName name)
-            throws InstanceAlreadyExistsException, MBeanRegistrationException,
-                   NotCompliantMBeanException;
+    public Object instantiate(String className, Object[] params,
+            String[] signature) throws ReflectionException, MBeanException;
 
     /**
-     * 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.
-     *
-     */
-    public void unregisterMBean(ObjectName name)
-            throws InstanceNotFoundException, MBeanRegistrationException;
-
-    /**
-     * 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 to the MBean
-     * specified by <VAR>name</VAR>.
-     *
-     * @exception InstanceNotFoundException The MBean specified is not
-     * registered in the MBean server.
-     */
-    public ObjectInstance getObjectInstance(ObjectName name)
-            throws InstanceNotFoundException;
-
-    /**
-     * 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.
+     * This method should never be called.
+     * Usually throws UnsupportedOperationException.
      */
-    public Set<ObjectInstance> queryMBeans(ObjectName name, QueryExp query);
-
-    /**
-     * Gets the names of MBeans controlled by the MBean server. This
-     * method enables any of the following to be obtained: The names
-     * of all MBeans, the names of a set of MBeans specified by
-     * pattern matching on the <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 oror 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.
-     */
-    public Set<ObjectName> queryNames(ObjectName name, QueryExp query);
-
-    /**
-     * 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.
-     */
-    public boolean isRegistered(ObjectName name);
-
-    /**
-     * Returns the number of MBeans registered in the MBean server.
-     */
-    public Integer getMBeanCount();
-
-    /**
-     * 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.
-     */
-    public Object getAttribute(ObjectName name, String attribute)
-            throws MBeanException, AttributeNotFoundException,
-                   InstanceNotFoundException, ReflectionException;
-
-    /**
-     * 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.
-     */
-    public AttributeList getAttributes(ObjectName name, String[] attributes)
-            throws InstanceNotFoundException, ReflectionException;
+    public Object instantiate(String className, ObjectName loaderName,
+            Object[] params, String[] signature)
+            throws ReflectionException, MBeanException,
+            InstanceNotFoundException;
 
     /**
-     * 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.
+     * This method should never be called.
+     * Usually throws UnsupportedOperationException.
      */
-    public void setAttribute(ObjectName name, Attribute attribute)
-            throws InstanceNotFoundException, AttributeNotFoundException,
-                   InvalidAttributeValueException, MBeanException,
-                   ReflectionException;
-
-
-
-    /**
-     * 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.
-     */
-    public AttributeList setAttributes(ObjectName name,
-                                       AttributeList attributes)
-        throws InstanceNotFoundException, ReflectionException;
+    @Deprecated
+    public ObjectInputStream deserialize(ObjectName name, byte[] data)
+            throws InstanceNotFoundException, OperationsException;
 
     /**
-     * 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 ofinvoking 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.
-     */
-    public Object invoke(ObjectName name, String operationName,
-                         Object params[], String signature[])
-            throws InstanceNotFoundException, MBeanException,
-                   ReflectionException;
-
-    /**
-     * 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.
-     */
-    public String getDefaultDomain();
-
-    /**
-     * Returns the list of domains in which any MBean is currently
-     * registered.
+     * This method should never be called.
+     * Usually throws UnsupportedOperationException.
      */
-    public String[] getDomains();
-
-    /**
-     * <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.
-     */
-    public void addNotificationListener(ObjectName name,
-                                        NotificationListener listener,
-                                        NotificationFilter filter,
-                                        Object handback)
-            throws InstanceNotFoundException;
-
-
-    /**
-     * <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.
-     */
-    public void addNotificationListener(ObjectName name,
-                                        ObjectName listener,
-                                        NotificationFilter filter,
-                                        Object handback)
-            throws InstanceNotFoundException;
+    @Deprecated
+    public ObjectInputStream deserialize(String className, byte[] data)
+            throws OperationsException, ReflectionException;
 
     /**
-     * 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.
+     * This method should never be called.
+     * Usually hrows UnsupportedOperationException.
      */
-    public void removeNotificationListener(ObjectName name,
-                                           ObjectName listener)
-        throws InstanceNotFoundException, ListenerNotFoundException;
-
-    /**
-     * <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 A listener that was previously added to this
-     * MBean.
-     * @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.
-     */
-    public void removeNotificationListener(ObjectName name,
-                                           ObjectName listener,
-                                           NotificationFilter filter,
-                                           Object handback)
-            throws InstanceNotFoundException, ListenerNotFoundException;
-
-
-    /**
-     * <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 object which will handle the
-     * notifications emitted by the registered MBean.
-     *
-     * @exception InstanceNotFoundException The MBean name provided
-     * does not match any of the registered MBeans.
-     * @exception ListenerNotFoundException The listener is not
-     * registered in the MBean.
-     */
-    public void removeNotificationListener(ObjectName name,
-                                           NotificationListener listener)
-            throws InstanceNotFoundException, ListenerNotFoundException;
+    @Deprecated
+    public ObjectInputStream deserialize(String className,
+            ObjectName loaderName, byte[] data)
+            throws InstanceNotFoundException, OperationsException,
+            ReflectionException;
 
     /**
-     * <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 A listener that was previously added to this
-     * MBean.
-     * @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.
+     * This method should never be called.
+     * Usually throws UnsupportedOperationException.
      */
-    public void removeNotificationListener(ObjectName name,
-                                           NotificationListener listener,
-                                           NotificationFilter filter,
-                                           Object handback)
-            throws InstanceNotFoundException, ListenerNotFoundException;
-
-    /**
-     * 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.
-     */
-    public MBeanInfo getMBeanInfo(ObjectName name)
-            throws InstanceNotFoundException, IntrospectionException,
-                   ReflectionException;
-
-
-    /**
-     * Returns true if the MBean specified is an instance of the
-     * specified class, false otherwise.
-     *
-     * @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, false otherwise.
-     *
-     * @exception InstanceNotFoundException The MBean specified is not
-     * registered in the MBean server.
-     */
-    public boolean isInstanceOf(ObjectName name, String className)
-            throws InstanceNotFoundException;
-
-    /**
-     * <p>Return the {@link java.lang.ClassLoader} that was used for
-     * loading the class of the named MBean.
-     * @param mbeanName The ObjectName of the MBean.
-     * @return The ClassLoader used for that MBean.
-     * @exception InstanceNotFoundException if the named MBean is not found.
-     */
-    public ClassLoader getClassLoaderFor(ObjectName mbeanName)
-        throws InstanceNotFoundException;
-
-    /**
-     * <p>Return the named {@link java.lang.ClassLoader}.
-     * @param loaderName The ObjectName of the ClassLoader.
-     * @return The named ClassLoader.
-     * @exception InstanceNotFoundException if the named ClassLoader is
-     * not found.
-     */
-    public ClassLoader getClassLoader(ObjectName loaderName)
-        throws InstanceNotFoundException;
+    public ClassLoaderRepository getClassLoaderRepository();
 
 }
+