[jboss-user] [JNDI/Naming/Network] - Proxy ClassCastException after successful EJB lookup

cupdike do-not-reply at jboss.com
Thu Feb 8 19:33:17 EST 2007


Using the EJB3 trailerblazer as a guide (http://trailblazer.demo.jboss.com/EJB3Trail/serviceobjects/slsb/index.html) 
I've been trying to reference a SLSB via a local interface in the web tier.

The jndi environment looks like this for my APLEntityFacade EJB3 SLSB:

  |   |   +- APLEntityFacadeBean (class: org.jnp.interfaces.NamingContext)
  |   |   |   +- local (proxy: $Proxy1344 implements interface edu.jhuapl.ermp.service.ejb.APLEntityFacade,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBLocalObject)
  |   |   |   +- remote (proxy: $Proxy1343 implements interface edu.jhuapl.ermp.service.ejb.APLEntityFacade,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBObject)
  | 

I'm successfully doing a lookup on "ermpJpaHib/APLEntityFacadeBean/local".  However, the cast below fails with the ClassCastException (exception given at end of post):

aplEntityFacade = (APLEntityFacade)facade;

APLEntityFacadeBean is defined like this:


  | @Stateless
  | @Local
  | @TransactionAttribute(TransactionAttributeType.REQUIRED)
  | public class APLEntityFacadeBean 
  |     extends GenericEJB3DAO<APLEntity, Long> 
  |     implements APLEntityFacade {
  | 
    
Anyone have any idea what I'm doing wrong?  

TIA, Clark

    $Proxy1344
  | java.lang.ClassCastException: $Proxy1344
  | 	at edu.jhuapl.ermp.ServiceFactory.getAPLEntityFacade(ServiceFactory.java:47)
  | 	at edu.jhuapl.ermp.contact.view.backing.SelectEntityView.getEntityTypes(SelectEntityView.java:15)
  | 	at org.apache.jsp.contact.selectEntityType_jsp._jspService(selectEntityType_jsp.java:103)
  | 	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
  | 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
  | 	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
  | 	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
  | 	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
  | 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  | 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  | 	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  | 	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
  | 	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  | 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  | 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  | 	at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
  | 	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.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  | 	at java.lang.Thread.run(Thread.java:595)

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