JSP is not found with error java.lang.NoClassDefFoundError after renaming it

Question

I am facing typical issue with the simple servlet, JSP application. I have developed some JSP pages and servlet. It works fine. After it, I have changed JSP file names to case sensitive likeAddEmployee.jsp to addEmployee.jsp and Home.jsp to home.jsp. I have also changed request dispatcher URL with new names. But then I facing exception

java.lang.NoClassDefFoundError: org/apache/jsp/employee/addEmployee_jsp

while loading JSP.

I am using Eclipse IDE and tomcat 9.0 application server.

I am dispatching request with code - request.getRequestDispatcher("/employee/addEmployee.jsp").forward(request, response); — Dhaval Goti, Jul 06 '18 at 04:55
your employee folder should be directly under your WEB-INF folder. — raviraja, Jul 06 '18 at 05:02
It won't work. I have changed my tomcat and it works fine. But still not able to know why it's happening. — Dhaval Goti, Jul 06 '18 at 05:26

score 0 · Answer 1 · answered Jul 06 '18 at 08:23

Check spellings first. Like,
java.lang.NoClassDefFoundError: org/apache/jsp/employee/addEmployee_jsp instead of java.lang.NoClassDefFoundError: org/apache/jsp/employee/addEmployee.jsp. The clean and build the project. Finally run. Maybe it would work.

score 0 · Answer 2 · answered Apr 23 '22 at 12:49

0

I solved this problem after cleaning Tomcat work directory.

answered Apr 23 '22 at 12:49

ValGarcia

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Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community Apr 24 '22 at 01:54

score 0 · Answer 3 · answered Jan 21 '23 at 19:54

0

Here are the steps to solve the problem.

go to server tabs
expand the server
right click on your project
select clean Module Work directory

answered Jan 21 '23 at 19:54

abdella

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JSP is not found with error java.lang.NoClassDefFoundError after renaming it

3 Answers3