question: private void connect ( ) throws IOException { JMXServiceURL jmxUrl = new JMXServiceURL ( String . format ( fmtUrl , host , port ) ) ; jmxc = JMXConnectorFactory . connect ( jmxUrl , null ) ; MBeanServerConnection mbeanServerConn = jmxc . getMBeanServerConnection ( ) ; try { ObjectName name = new ObjectName ( DOMAINLIST_OBJECT_NAME ) ; domainListProxy = MBeanServerInvocationHandler . newProxyInstance ( mbeanServerConn , name , DomainListManagementMBean . class , true ) ; name = new ObjectName ( VIRTUALUSERTABLE_OBJECT_NAME ) ; virtualUserTableProxy = MBeanServerInvocationHandler . newProxyInstance ( mbeanServerConn , name , RecipientRewriteTableManagementMBean . class , true ) ; name = new ObjectName ( USERSREPOSITORY_OBJECT_NAME ) ; usersRepositoryProxy = MBeanServerInvocationHandler . newProxyInstance ( mbeanServerConn , name , UsersRepositoryManagementMBean . class , true ) ; name = new ObjectName ( MAILBOXCOPIER_OBJECT_NAME ) ; mailboxCopierManagement = MBeanServerInvocationHandler . newProxyInstance ( mbeanServerConn , name , MailboxCopierManagementMBean . class , true ) ; name = new ObjectName ( MAILBOXMANAGER_OBJECT_NAME ) ; mailboxManagerManagement = MBeanServerInvocationHandler . newProxyInstance ( mbeanServerConn , name , MailboxManagerManagementMBean . class , true ) ; name = new ObjectName ( QUOTAMANAGER_OBJECT_NAME ) ; quotaManagement = MBeanServerInvocationHandler . newProxyInstance ( mbeanServerConn , name , QuotaManagementMBean . class , true ) ; name = new ObjectName ( REINDEXER_OBJECT_NAME ) ; reIndexerManagement = MBeanServerInvocationHandler . newProxyInstance ( mbeanServerConn , name , ReIndexerManagementMBean . class , true ) ; name = new ObjectName ( SIEVEMANAGER_OBJECT_NAME ) ; sieveRepositoryManagement = MBeanServerInvocationHandler . newProxyInstance ( mbeanServerConn , name , SieveRepositoryManagementMBean . class , true ) ; } catch ( MalformedObjectNameException e ) { throw new RuntimeException ( "Invalid ObjectName? Please report this as a bug." , e ) ; } }
target:  Create a connection to the JMX agent and setup the M[X]Bean proxies.