EJB echoService Example Problems

Hi

I am trying to deploy the echoService (Pro Spring) example in my Jboss-4.0.2. This is my first time with Spring and EJBs. When I try to use the client (the servlet that obtains de bean) I am getting the followings errors:

13:54:23,196 INFO [DefaultListableBeanFactory] Creating shared instance of singleton bean 'echoService'
13:54:23,278 INFO [LocalStatelessSessionProxyFactoryBean] Located object with JNDI name [java:comp/env/ejb/echoService]: value=[ejb/echoServiceHome]
13:54:23,382 INFO [CollectionFactory] Using JDK 1.4 collections
13:54:23,474 ERROR [[ejb]] Servlet.service() for servlet ejb threw exception
java.lang.ClassCastException
at com.apress.prospring.ch13.ejbtest.EjbTestServlet.d oStatelessExample(Unknown Source)
at com.apress.prospring.ch13.ejbtest.EjbTestServlet.d oGet(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:810)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doF ilter(ReplyHeaderFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.CustomPrincipalValve .invoke(CustomPrincipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationV alve.invoke(SecurityAssociationValve.java:153)
at org.jboss.web.tomcat.security.JaccContextValve.inv oke(JaccContextValve.java:59)
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.invok e(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11Conn ectionHandler.processConnection(Http11Protocol.jav a:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.process Socket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread .run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:552)


Any ideas?

Thanks a lot.