Code ran fine in Eclipse, no output as a Jar file..help!

I have been working on a piece of code that reads an excel spreadsheet, and writes xml files based on that. (I'm to cheap to buy the numerous software out there)
The code ran beautifully in Eclipse, and all the right dialog windows and console outputs were present, as well as the final product, about 250 XML files.
I exported the src to a sealed jar file and ran it.
I get the first few dialogs that ask info of me, but as soon as it starts the process I get nothing!...
no exceptions, no errors, no xml...does anyone know what i did wrong?
Thanks so much for the help.

we can't help you if we don't know the real probelm you've got.
use an error logger like log4j http://logging.apache.org/log4j/docs/index.html and report the exception messages.

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