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Does Tomcat 3 get confused when there are two classes of diff version, but of same name in the class path?

Hi experts,

We are using tomcat 3 on our server, where multiple applicatons are running. Each application has its own folder under Tomcat, each folder has its own WEB-INF directory where we put our class file. Somehow, there are two application using the same classes, but different version, which means the class names are the same, but the codes are different.

Strangely, the one application which was installed on the machine earlier than the other seems "over power" the other that the newly installed application only sees the class version on the other directory, but not the one on its own WEB-INF directory. How to fix this and why?

Thanks.

kennethxu

You should consider to upgrade to tomcat 4:
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/class-loader-howto.html

cindyli

ASKER

thanks. I have seen this document, which talks about Tomcat 4, not Tomcat 3 though.

kennethxu

as I was suggesting you to update to tomcat 4. a better version.

vzilka

Are you sure the class doesn't exist in the lib directory of Tomcat?
How did you change the Tomcat classpath?

cindyli

ASKER

My understanding is you don't set classpath for Tomcat, it looks for certain directory itself. Yes, the classes do not exist in lib, but just under WEB-INF of each application.

vzilka

You set the classpath before starting the server.
I assume you put the class files under WEB-INF\classes folder.

ASKER CERTIFIED SOLUTION

jarasa

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