Why is the application caching the old jar file

Hi all
I have an application that is caching the old jar file.
even when i reboot.
when the application starts up it appears to pick up the old jar file.
any idea on how i can let it pick up the new jar file ?
stev

I'm pretty sure that it is just this one .jar file.
You see I changed a Servlet class in the jar file and messed up the application.
Now I'm putting back the old jar file and guess what
it's somehow hanging on to this old servlet class. and showing the same error. What is unique is that I did the same thing on another PC a server edition and it let go of the old Servlet with no problem
but on my PC a professional edition it is hanging onto that old Servlet even though I deleted every instance of it on the PC , shut down the PC and restart the app. I even deleted the old jar file from the recycle bin. the jar file has a very distinct name so i can easily search for it and
This app uses tomcat as well - not that that's related.
I have had this problem happen to me before at home with applet. I would change something and it would just hang on to it forever.
Anybody has any idea how to go into the registry or some other place and get rid of this servlet class or jar file ?
stev

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Why is the application caching the old jar file

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