I deployed HelloWorldApp.ear in j2ee server.When i run helloWorldClient.bat, there are "Hello world!" appeared.
But once i deployed HelloWorldApp.ear into Jboss-2.4.5 without tomcat,helloWorldClient has some errors:
Javax.naming.CommunicationException:Can't find SerialContextProvider
at com.sun.enterprise.naming.SerialContext.getProvider(serialContext.java:60)
at com.sun.enterprise.naming.SerialContext.(SerialContext.java:79)
...
at javax.naming,InitialContext.init(InitialContextr.java:222)
at javax.naming.InitialConext.(InitialContext.java:178)
at HelloWorldClient.main(HelloWorldClient.java;12)

it is not functional.
Does it need more configuration files. In HelloWorldClinet.main 12 row and 13 row are:
Context initial = new InitialContext();
Object objref = initial.lookup("MyHelloWorld");

I found many EJB couldn't deploy in Jboss directly.