Java EE (Java Enterprise Edition) General Discussion

Hi, everybody

I have a web application. Is is a simple JMS message sender: 2 jsp files(User Interface) and a java helper class which in charge of the sending of jms messages) . It runs well on SJSAS 9 web container.

After I have moved it to Tomcat5.5.17(bundled with Netbeans5.5.1), I have the following exception when I visit the jsp page:

type : Exception report

message :

description : The server encountered an internal error () that prevented it from fulfilling this request.

exception: 

javax.servlet.ServletException: Servlet.init() for servlet jsp threw exception
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
	org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	java.lang.Thread.run(Thread.java:595)


root cause :

java.lang.NoClassDefFoundError
	org.apache.jasper.servlet.JspServlet.init(JspServlet.java:106)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
	org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	java.lang.Thread.run(Thread.java:595)

I have imported appserv-rt.jar / appserv-ext.jar / appserv-deployment-jar / appserv-ws.jar / imqjmsra.jar / javaee.jar to my web application's library.

And i have used the argu-ed Context to do JNDI job to find the JMS resources in SJSAS.
I need your advices, thank you.