Stopping Tab Change in JTabbedPane

When a tab change is requested, I need to do some checking before allowing the change to take place. If the check fails, I need to stop the change from taking place.
Is this possible with JTabbedPane or do I need to sub-class? TIA
Paul

I have moved from Borland Builder C++ and Delphi to Java in the last 4 months so I guess I'm still finding my way here.
Using the ChangeListener, the tab changing has already taken place when xxxxStateChanged(ChangeEvent evt) is called.
And to ovveride setSelectedIndex() I would have to subclass JTabbedPane. I was hoping there was an easier way.
Thanks anyway.
Paul.

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