bothersome ServletException

[John Eric Hamacher]

Hello:

I recently migrated a web app from JDeveloper to Eclipse. It ran normal in JDeveloper. Now when I run the app with OC4J, I get the following (with no root cause):

javax.servlet.ServletException: Error instantiating servlet 'PolarityServlet'. Servlet class polarity.PolarityServlet not found in
web-application polarity
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpApplication.servletClassNotFound(HttpApplication
.java:4880)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpApplication.findServlet(HttpApplication.java:4846
)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpApplication.findServlet(HttpApplication.java:4748
)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpApplication.getRequestDispatcher(HttpApplication
.java:2971)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler
.java:741)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler
.java:453)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler
.java:221)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239)
at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34)
at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor
.java:303)
at java.lang.Thread.run(Thread.java:595)


I've triple, quadruple, etc. -checked my web.xml and servlet. It's all the same as it was before in JDeveloper. I've tried putting various jars in the server's classpath (commons-digester ,commons-logging, commons-beanutil) to no avail.

Any suggestions would be appreciated.

Eric