0 Replies Latest reply on Oct 12, 2006 6:54 AM by Alec Cawley

    Wrong class when getting started.

    Alec Cawley Newbie

      I am trying to get started with EJB3 in JBoss. I have installed JBoss4.0.4GA and patched in jboss-EJB-3.0_RC9-FD. Then I have written my first Stateless Session Bean, derived from the training course, and (after some trouble) deployed it.

      I then try to access it with my Client, using the code below.
      public static void main (String[] args) throws Exception

      Properties props = new Properties () ;
      props.setProperty ("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory") ;
      props.setProperty ("java.naming.provider.url", "localhost:1099") ;

      InitialContext ctx = new InitialContext (props) ;

      Object o = ctx.lookup (CalcImpl.class.getSimpleName ()) ;
      Calc calculator = (Calc) o ;
      System.out.println ("1 + 1 = " + calculator.add (1, 1)) ;
      System.out.println ("1 - 1 = " + calculator.subtract (1, 1)) ;


      But the Object o returned from ctx.lookup is not, as I expect, a CalcImpl Object, but a NamingContext Object, which then causes a Class Cast error.

      What am I doing wrong?

      Incidentally, after patching, the JBoss startup throws this exception:
      ... 83 more
      11:42:02,648 ERROR [MainDeployer] Could not create deployment: file:/C:/JBoss/jboss-4.0.4.GA/server/default/deploy/ejb3-entity-cache-service.xml
      org.jboss.deployment.DeploymentException: No ClassLoaders found for: org.jboss.cache.TreeCache; - nested throwable: (java.lang.ClassNotFoundException: No ClassLoaders found for: org.jboss.cache.TreeCache)
      at org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:196)
      at org.jboss.system.ServiceController.install(ServiceController.java:226)

      Should I worry? Should I report?

      Thanks for any help