Error in JBoss.xml

Question

ejb-jar.xml
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
     <description>JBoss Hello World Applicaiton</description>
     <display-name>Hello World EJB</display-name>
     <enterprise-beans>
          <session>
               <ejb-name>HelloWorld</ejb-name>
               <home>com.goldilocks.gpos.ejb.HelloWorldHome</home>
               <remote>com.goldilocks.gpos.ejb.HelloWorld</remote>
               <ejb-class>com.goldilocks.gpos.ejb.HelloWorldBean</ejb-class>
               <session-type>Stateless</session-type>
               <transaction-type>Container</transaction-type>
          </session>
     </enterprise-beans>
</ejb-jar>
jboss.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jboss-web PUBLIC "-//JBoss//DTD Web Application 2.3//EN"
"http://www.jboss.org/j2ee/dtds/jboss-web_3_0.dtd">
<jboss>
<enterprise-beans>
<session>
<ejb-name>HelloWorld</ejb-name>
<ejb-ref>
<ejb-ref-name>ejb/HelloWorld</ejb-ref-name>
<jndi-name>ejb/HelloWorld</jndi-name>
</ejb-ref>
</session>
</enterprise-beans>
</jboss>
Jboss says that
10:25:28,531 ERROR [XmlFileLoader] failed to load jboss.xml. There could be a syntax error.
org.jboss.deployment.DeploymentException: Error in jboss.xml for Bean HelloWorld
: ejb-ref ejb/HelloWorld found in jboss.xml but not in ejb-jar.xml
what do i need to put in my ejb-jar.xml? i just want to learn when and how to lookup ejbs using the "java:comp/env"....please help me! im confused

Answer 1

ejb-jar.xml
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
     <description>JBoss Hello World Application</description>
     <display-name>Hello World EJB</display-name>
     <enterprise-beans>
          <session>
               <ejb-ref>
                    <ejb-ref-name>HelloWorld</ejb-ref-name>
                    <ejb-ref-type>Session</ejb-ref-type>
                    <home>HelloWorldHome</home>
                    <remote>HelloWorld</remote>
                    <ejb-link>HelloWorld</ejb-link>
               </ejb-ref>
               <ejb-name>HelloWorld</ejb-name>
               <home>com.goldilocks.gpos.ejb.HelloWorldHome</home>
               <remote>com.goldilocks.gpos.ejb.HelloWorld</remote>
               <ejb-class>com.goldilocks.gpos.ejb.HelloWorldBean</ejb-class>
               <session-type>Stateless</session-type>
               <transaction-type>Container</transaction-type>
          </session>
     </enterprise-beans>
</ejb-jar>
jboss.xml
<!DOCTYPE jboss-web PUBLIC "-//JBoss//DTD Web Application 2.3//EN"
"http://www.jboss.org/j2ee/dtds/jboss-web_3_0.dtd">
<jboss>
     <enterprise-beans>
          <session>
               <ejb-name>HelloWorld</ejb-name>
                    <ejb-ref>
                         <ejb-ref-name>HelloWorld</ejb-ref-name>
                         <jndi-name>ejb/HelloWorld</jndi-name>
                    </ejb-ref>
          </session>
     </enterprise-beans>
</jboss>
client file:
import javax.naming.Context;
import javax.naming.InitialContext;
import java.util.Hashtable;
import com.goldilocks.gpos.ejb.HelloWorldHome;
import com.goldilocks.gpos.ejb.HelloWorld;
public class StandAlone_EJB_Client
public static void main( String [] args )
     Hashtable env = new Hashtable();
     env.put(Context.INITIAL_CONTEXT_FACTORY,
          "org.jnp.interfaces.NamingContextFactory");
     env.put(Context.PROVIDER_URL, "localhost:1099");
     env.put("java.naming.factory.url.pkgs",
          "org.jboss.naming:org.jnp.interfaces");
     try
          Context ctx = new InitialContext(env);
System.out.println("Before Lookup");
          Object obj = ctx.lookup( "java:comp/env/ejb/HelloWorld" );
System.out.println("After Lookup");
          HelloWorldHome home =
          (HelloWorldHome)javax.rmi.PortableRemoteObject.narrow(
          obj, HelloWorldHome.class );
          HelloWorld helloWorld = home.create();
          System.out.println( helloWorld.hello());
          helloWorld.remove();
     catch ( Exception e )
          e.printStackTrace();
          System.out.println( "Exception: " + e.getMessage() );
public StandAlone_EJB_Client()
exception:
javax.naming.NameNotFoundException: comp not bound
     at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:245)
     at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:220)
     at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:122)
     at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)Exception: comp not bound
     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:492)
     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:471)
     at javax.naming.InitialContext.lookup(InitialContext.java:350)
     at com.goldilocks.gpos.client.StandAlone_EJB_Client.main(StandAlone_EJB_Client.java:33)
Please help...i am really confused!