[Jython-users] advice on class (un)loading

[Xavier N. <fx...@is...>]

I am a bit in a hurry to fix these bugs, I would be very grateful if 
you could provide some hints or some pointers to implement or learn 
about how to address them correctly.

Without going into the details, this is an application written in 
Java/Jython that is able to execute programs written in Jython.

The first problem arises when the program uses an external library that 
coincides whith some of the ones used by the application itself (for 
instance two different versions of JDOM).

The second problem comes from the fact that while the application is 
running the user can close a program and load another one. The external 
libraries of the first one (appended to sys.path by the application 
before the program is interpreted) should be "unloaded" so that the 
external libraries of the second one can be loaded without conflicts 
(assuming bug #1 is solved). How could it be accomplished?

-- fxn