[EJB 3.0] - ClassCastExeption while invoking a Bean
by Ulmer
hi,
evaluating a simpliest ejb3 I get the following exception
anonymous wrote :
| java.lang.ClassCastException
| com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:229)
| javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
| mypackage.MyClientClass.testBeanInvocation(MyClientClass.java:50)
| sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| java.lang.reflect.Method.invoke(Method.java:597)
| org.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:351)
| org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:305)
| org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:128)
| org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:44)
| org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:684)
| org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:625)
| org.springframework.web.servlet.FrameworkServlet.serviceWrapper(FrameworkServlet.java:386)
| org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:346)
| javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
| javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
| org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
|
| root cause
|
| java.lang.ClassCastException: org.jnp.interfaces.NamingContext cannot be cast to org.omg.CORBA.Object
| com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:212)
| javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
| mypackage.MyClientClass.testBeanInvocation(MyClientClass.java:50)
| sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| java.lang.reflect.Method.invoke(Method.java:597)
| org.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:351)
| org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:305)
| org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:128)
| org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:44)
| org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:684)
| org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:625)
| org.springframework.web.servlet.FrameworkServlet.serviceWrapper(FrameworkServlet.java:386)
| org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:346)
| javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
| javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
| org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
|
|
the executing code:
| Object ref = ctx.lookup("MyBean");
| Object narrow = PortableRemoteObject.narrow( ref, MyRemote.class); //exception comes here
|
|
The bean to be invoked is a stateful session bean, deployed in the /server/default/deploy as a *.jar.
Does anybody have an idea?
Environment:
Jboss 4.2.0 RC2
Java 6
Windows XP
Regards,
Ulmer
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19 years, 1 month