Apache - error de eclipce y tomcat

no se que significa este error alguien me podria ayudar

INFO: Jk running ID=0 time=0/78 config=null
05-ene-2007 18:05:22 org.apache.catalina.storeconfig.StoreLoader load
INFO: Find registry server-registry.xml at classpath resource
05-ene-2007 18:05:23 org.apache.catalina.startup.Catalina start
INFO: Server startup in 2172 ms
05-ene-2007 18:07:02 org.apache.catalina.core.StandardContext reload
INFO: Ha comenzado la recarga de este Contexto
05-ene-2007 18:07:17 org.apache.catalina.core.ApplicationContext log
INFO: Marcando el servlet MyServletJspOrEjb como no disponible
05-ene-2007 18:07:17 org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: Excepción de reserva de espacio para servlet MyServletJspOrEjb
java.lang.ClassCastException: MyServletJspOrEjb
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1055)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:130)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)