[news.eclipse.tools.jdt] Eclipse does not refresh user libraries

[harrysheng00@xxxxxxxxxxx (Harry)]

Hi,

I created a few user libraries in Eclipse 3.2.1 that include jar files 
from ant build. Every time I rebuild (clean followed by build) my jar 
files, my user libraries in Eclipse become invalid. There's one or two jar 
files that I have to remove from the user libraries, and then add it back 
to the libraries; or I have to manipulate the jar file order in the user 
libraries to re-valid the user libraries.

I tried clean the whole workspace, restart Eclipse. The problem persists.

Is there any other methods to get Eclipse refresh the user libraries with 
re-built jar files?

Thanks and have a great Christmas.

Harry