[jboss-user] [Beginners Corner] - ClassCastException

[ravinderrao_77]

Hi,
 This would have been asked before but i could find the right thread which gives a solution to the following problem.

I use - 
1)netBeans 5.5 to devlop and deploy EJB's
2)jdk1.4

Problem:

A stateful session bean with the following :

1)jboss.xml


    <enterprise-beans>
        
            <ejb-name>EnrollmentCartBean</ejb-name>
            <local-jndi-name>ejb/ECB</local-jndi-name>
        
    </enterprise-beans>


2)ejb-jar.xml

            <display-name>EnrollmentCart</display-name>
            <ejb-name>EnrollmentCartBean</ejb-name>

            <local-home>com.testpack.stateful.EnrollmentLocalHome</local-home>
com.testpack.stateful.EnrollmentLocal
                  <ejb-class>com.testpack.stateful.EnrollmentCartBean</ejb-class>
            <session-type>Stateful</session-type>
            <transaction-type>Container</transaction-type>
        

*** the <lo   cal></lo  cal> tag is not getting displayed in here !!! strange 


3) servlet code that tries to use the bean

InitialContext ictx = new InitialContext();
            Object o = ictx.lookup("ejb/ECB");
            // Object o = ictx.lookup("ECB"); throws name not bound
           log.debug("object after look up:"+o); //** debug statement
            EnrollmentLocalHome home = (EnrollmentLocalHome)o;
            EnrollmentLocal ejbObject = home.create("client");


I get the following erors

**** 2006-12-15 11:51:36,781 DEBUG [com.testpack.webutil.Enroller] object after look up:ejb/ECBHome

2006-12-15 11:51:36,781 ERROR [STDERR] java.lang.ClassCastException: $Proxy57
2006-12-15 11:51:36,781 ERROR [STDERR] 	at com.testpack.webutil.Enroller.processRequest(Enroller.java:55)
2006-12-15 11:51:36,781 ERROR [STDERR] 	at com.testpack.webutil.Enroller.doPost(Enroller.java:99)
2006-12-15 11:51:36,781 ERROR [STDERR] 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
2006-12-15 11:51:36,781 ERROR [STDERR] 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
2006-12-15 11:51:36,781 ERROR [STDERR] 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
2006-12-15 11:51:37,062 ERROR [STDERR] 	at java.lang.Thread.run(Thread.java:595)


Any help would be highly appreciated !!!

Regards

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