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Web Application Migration from Tomcat 4.1 to Tomcat 6.0

madhuri ponasanapalli

Joined: Dec 05, 2008
Posts: 3
Hello ,

I am having trouble migrating by web application from Tomcat 4.1 to Tomcat 6.0 . This application uses struts 1.3.8.

When I deploy the application in Tomcat 6.0 , I get the below error.

If I include the servlet.jar from Tomcat 4.1 in the WEB-INF/lib the application works fine .
Except for the warning validateJarFile(C:\Apache\Tomcat 6.0\webapps\MyApplication\WEB-INF\lib\servlet.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class.

This happens on pages that use the Tiles Layout.

I dont want to use the servlet.jar from Tomcat 4.1 . I want to use the servlet-api.jar & jsp-api.jar from Tomcat 6.0 .

Can anyone please advise .

Tim Holloway
Saloon Keeper

Joined: Jun 25, 2001
Posts: 15629

Were you attempting to include the Tomcat 6 servlet jar in your webapp?

You shouldn't ever include servlet.jar. If you do, you may experience classpath errors, since the TOMCAT_HOME/lib servlet.jar is in the server's system classpath.

I guess the split between servet-api.jar and servlet-impl.jar must have occurred between Tomcat 4 and Tomcat 5. It's been long enough I don't remember. Web applications should be compiled with the servlet-api.jar in their compile classpath, though the actual jar itself should not be included in the WAR file, since the server's copy will be used at runtime.

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subject: Web Application Migration from Tomcat 4.1 to Tomcat 6.0
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