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POAccess remote objects with an RMI client by creating an initial context and performing a lookup
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  1. POAccess remote objects with an RMI client by creating an initial context and performing a lookup
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    copied!<p>I'm trying to look up the PublicRepository class from an EJB on a Weblogic 10 server. This is the piece of code:</p> <pre><code>/** * RMI/IIOP clients should use this narrow function */ private static Object narrow(Object ref, Class c) { return PortableRemoteObject.narrow(ref, c); } /** * Lookup the EJBs home in the JNDI tree */ private static PublicRepository lookupHome() throws NamingException { // Lookup the beans home using JNDI Context ctx = getInitialContext(); try { Object home = ctx.lookup("cea"); return (PublicRepository) narrow(home, PublicRepository.class); } catch(NamingException ne) { System.out.println("The client was unable to lookup the EJBHome. Please make sure "); System.out.println("that you have deployed the ejb with the JNDI name " + "cea" + " on the WebLogic server at " + "iiop://localhost:7001"); throw ne; } } private static Context getInitialContext() throws NamingException { try { // Get an InitialContext Properties h = new Properties(); h.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory"); h.put(Context.PROVIDER_URL, "iiop://localhost:7001"); return new InitialContext(h); } catch(NamingException ne) { System.out.println("We were unable to get a connection to the WebLogic server at " + "iiop://localhost:7001"); System.out.println("Please make sure that the server is running."); throw ne; } } </code></pre> <p>I'm however getting Cast Exception:</p> <pre><code>Exception in thread "main" java.lang.ClassCastException at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(Unknown Source) at javax.rmi.PortableRemoteObject.narrow(Unknown Source) at vrd.narrow(vrd.java:67) at vrd.lookupHome(vrd.java:80) at vrd.main(vrd.java:34) Caused by: java.lang.ClassCastException: weblogic.corba.j2ee.naming.ContextImpl ... 5 more </code></pre> <p>Am I correct when I'm using the above code to retrive a certain class to be used in my client application? How could I get rid of the cast exception?</p>
 

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