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From "Knuplesch, Juergen" <>
Subject derby Classpath issue
Date Thu, 19 Jan 2012 12:07:26 GMT


I was creating an ANT-task that is using derby.jar as jdbc driver.

I put derby.jar in the front of the classpath of my task.

But every time I tried to reload sth. into my derby database it failed: sth. like "JDBC driver
not found"


Yesterday I found a workaround for my problem:

I moved derby.jar into the classpath of ANT.

And that worked.


My question is Why does it nor work with derby.jar in my tasks classpath, because this is
the solution I prefer?

(As far as I know, ANT creates a new classloader for the new task. It seems that the derby
stuff is only searched in ANTs parent classloader)








Jürgen Knuplesch           <> 

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D-70178 Stuttgart                   Fax. +49 711 806098-299


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