How to catch the IllegalComponentStateException?

I have a JTable which has 3 columns, only the first column is editable. I got the following exception sometimes when I click the mouse on the column to bring up a popupMenu. There is a post on Aug 19 talked about this problem http://forum.java.sun.com/thread.jsp?forum=31&thread=308995&tstart=15&trange=15. If jvm can't not catch the mouse event that cause this exception, how do I catch it?
Any ideas? Thanks a lot!!
Exception occurred during event dispatching:
java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location
     at java.awt.Component.getLocationOnScreen_NoTreeLock(Component.java:1237)
     at java.awt.Component.getLocationOnScreen(Component.java:1211)
     at javax.swing.JPopupMenu.show(JPopupMenu.java:785)
     at PortRenderer$portMouseListener.processEvent(PortRenderer.java:190)
     at PortRenderer$portMouseListener.mousePressed(PortRenderer.java:196)
     at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:215)
     at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:215)
     at java.awt.Component.processMouseEvent(Component.java:3707)
     at java.awt.Component.processEvent(Component.java:3539)
     at java.awt.Container.processEvent(Container.java:1159)
     at java.awt.Component.dispatchEventImpl(Component.java:2588)
     at java.awt.Container.dispatchEventImpl(Container.java:1208)
     at java.awt.Component.dispatchEvent(Component.java:2492)
     at javax.swing.plaf.basic.BasicTableUI$MouseInputHandler.repostEvent(BasicTableUI.java:433)
     at javax.sw

I added a MouseMotionListener to the component, but it doesn't work.

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