If I really wanted to do something like that, can I put a JProgressBar (or it's equivalent) in a JTabbedPane tab? (I mean, not in the tab itself,

How would I do something like that?

EDIT I really do want to put the progressbar in the title of the tab, not the tab itself.

Here's some ascii art:

----------------------------------------------------
|  Tab 1  || Tab   2||Tab-with-progress-bar||Tab  4|
-----------         --------------------------------
'                                                  '
'                                                  '
'                                                  '
'                                                  '
'                                                  '
'                                                  '
'                                                  '
'                                                  '
----------------------------------------------------

So it's really "tab 2" that is currently visible, but I want the progress bar (or equivalent) to be visible in the third tab's title.

EDIT 2

This has to work on Java 1.5: this has to work on the countless MacOS 10.4 and MacOS 10.5 Apple computers that will never be equipped with Java 6 (some do, some don't: and quite a lot never will, it is not my call)

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