Configuration components not visible in SMC

I am not able to see Configuration components ( Endpoints , process and services ) in SMC . I message viewer , I got following one :

java.lang.reflect.InvocationTargetException

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:494)

at com.sonicsw.ma.gui.JWorkspaceConfigPanel.instantiateDomainPlugin(Unknown Source)

at com.sonicsw.ma.gui.JWorkspaceConfigPanel.initialize(Unknown Source)

at com.sonicsw.ma.gui.WorkspaceWindow.getSelectedWorkspacePanel(Unknown Source)

at com.sonicsw.ma.gui.WorkspaceWindow.stateChanged(Unknown Source)

at javax.swing.JTabbedPane.fireStateChanged(JTabbedPane.java:290)

at javax.swing.JTabbedPane$ModelListener.stateChanged(JTabbedPane.java:222)

at javax.swing.DefaultSingleSelectionModel.fireStateChanged(DefaultSingleSelectionModel.java:116)

at javax.swing.DefaultSingleSelectionModel.setSelectedIndex(DefaultSingleSelectionModel.java:50)

at javax.swing.JTabbedPane.setSelectedIndexImpl(JTabbedPane.java:478)

at javax.swing.JTabbedPane.setSelectedIndex(JTabbedPane.java:464)

at javax.swing.JTabbedPane.insertTab(JTabbedPane.java:595)

at javax.swing.JTabbedPane.addTab(JTabbedPane.java:662)

at javax.swing.JTabbedPane.add(JTabbedPane.java:746)

at com.sonicsw.ma.gui.WorkspaceWindow.(Unknown Source)

at com.sonicsw.ma.gui.MgmtConsole.launchWorkspaceWindow(Unknown Source)

at com.sonicsw.ma.gui.MgmtConsole$1.run(Unknown Source)

at java.lang.Thread.run(Thread.java:595)