1 Reply Latest reply: Jan 16, 2012 11:14 AM by Wolf-Dieter Fink RSS

    Get ejb3 from remote host (jboss 5.1) to jboss 4.x

    Michael Lanf Newbie


      I'm trying to get an ejb3 from a remote host (that uses jboss 5.1) inside jboss 4.x. The code I use is the following:


      public void myFunction() {

              Properties jndiProps = new Properties();

              jndiProps.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");

              jndiProps.setProperty(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interface");

              jndiProps.setProperty(Context.PROVIDER_URL, "jnp://{host-ip}:{host-jndi-port}");

              try {

                  FooInterface foo = (FooInterface)(new InitialContext(jndiProps)).lookup("{jndi-name}");


              } catch (Exception e) {






      But doing that, I get a ClassCastException here "FooInterface foo = (FooInterface)(new InitialContext(jndiProps)).lookup("{jndi-name}");":


      java.lang.ClassCastException: javax.naming.Reference cannot be cast to my.package.FooInterface

         at com.phi.phirxportal.SecondOpinionRequestBean.myFunction(SecondOpinionRequestBean.java:272)

         at com.phi.phirxportal.SecondOpinionRequestBean.checkExam(SecondOpinionRequestBean.java:170)

         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

           at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

           at java.lang.reflect.Method.invoke(Method.java:597)

           at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:335)


      Host ip, jndi name and host jndi port are correct. I can't figure out how to get my FooInterface from a javax.naming.Reference object.

      The Reference object toString method returns something like:


      Reference Class Name: Proxy for: my.package.FooInterface

      Type: ProxyFactoryKey

      Content: ProxyFactory/.....

      Type: EJB Container Name

      Content: jboss.j2ee:ear=xxx.ear,jar=xxx.jar,name=FooBean,service=EJB3

      Type: Proxy Factory is Local

      Content: false

      Type: Remote Business Interface

      Content: my.package.FooInterface

      Type: Remoting Host URL

      Content: socket://hostpcname:3873/?


      Is there a way to do that or does it depends on something else (libraries, configuration, jboss version...)?

      Thanks in advance.