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Error Message

Ahsan Jamil
Ranch Hand

Joined: Aug 24, 2001
Posts: 58
hi 2 all,
I have made a simple LoginServlet, which just call a method validate() of a class Customer. Although that class Customer is placed in the lib folder of my web application as a jar file .
But when i try to use this class in that servlet LoginServlet, it shows an error that message.
" The server encountered an internal error () that prevented it from fulfilling this request. "
javax.servlet.ServletException: Invoker service() exception
at org.apache.catalina.servlets.InvokerServlet.serveRequest(
at org.apache.catalina.servlets.InvokerServlet.doGet(
at javax.servlet.http.HttpServlet.service(

root cause :
java.lang.NoClassDefFoundError: com/retail/controller/Customer
Although jar file of complete package which contains class Customer is placed in the lib of web-inf of my web application.
I think that servlet container is not able to load that jar file. But how this problem could be solved?
Plz reply me ASAP.

Regards,<br /> <br />Ahsan Jamil<br />SCJP, SCWCD, IBM OOAD
Sonny Gill
Ranch Hand

Joined: Feb 02, 2002
Posts: 1211

A possible mistake, quite common actually..
make sure that your directory is WEB-INF, and not web-inf. it is case-sensitive.

The future is here. It's just not evenly distributed yet. - William Gibson
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Ahsan Jamil
Ranch Hand

Joined: Aug 24, 2001
Posts: 58
Thanx 4 ur reply, it is Web-inf, & i have checked its accessing the servlet i.e its accessing the web-inf\classes but cannt acces jar file, i dunno, y? plz someone give me the answer
I agree. Here's the link:
subject: Error Message
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