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From Torsten Römer <>
Subject Class.forName() gives NoClassDefFoundError
Date Tue, 07 Jun 2005 18:57:06 GMT

I am currently trying to migrate a webbased cashregister system from BEA 
Weblogic 6.1/JDK 1.3.1 to Tomcat 5.0.25/JDK 1.4.2. After making some 
minor changes the application seems to work, and it also seems to run a 
lot faster.

I have one problem though: The application does a lot of 
Class.forName(), which occasionally fails with a NoClassDefFoundError. 
One time everything seems to work fine, another time, after a restart of 
Tomcat, I sometimes get this error.

In a pretty old post here I read that I have to add the classes in 
question (they are all in WEB-INF/classes) to Tomcat's classpath, so 
that the classloader can find them. Does this still apply? Or have I 
overlooked some setting, that for example preloads classes or something 
like that?


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