Elementary Query around JBoss and EJB3

[Anoop Jain]

Hi All,

Am trrying to deploy an EJB-3 stateless bean on JBoss but am unable to do that. Will appreciate if anyone can let me know what's wrong. In did the following:

[1] Created Bean and Local/Remote Interfaces:-

@Remote
public interface CalcRemote {
	
	public double add(double a, double b);
	
	public double substract(double a, double b);
	
	public double multiply(double a, double b);
	
	public double divide(double a, double b);
}

@Stateless
public class Calc implements CalcLocal, CalcRemote {

	public double add(double a, double b) {
		return a+b;
	}

	public double divide(double a, double b) {
		return a-b;
	}

	public double multiply(double a, double b) {
		return a*b;
	}

	public double substract(double a, double b) {
		return a/b;
	}
}

[2] Created a client to test the above:

public class Client 
{
    public static void main(String [] args) throws Exception 
    {
        CalcRemote cal = (CalcRemote) getInitialContext().lookup("Calc/remote");  

        System.out.println(cal.add(1.2, 3.4));
    }

    public static Context getInitialContext() 
        throws javax.naming.NamingException 
    {
        return new javax.naming.InitialContext();
    }
}

[3] The client will have the following jndi.properties in its classpath

java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url=jnp://localhost:1099

[4] Created an application.xml file to be used for EAR

<?xml version="1.0" encoding="UTF-8"?>
<application xmlns="http://java.sun.com/xml/ns/j2ee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
                                 http://java.sun.com/xml/ns/j2ee/application_1_4.xsd"
             version="1.4">
    <display-name>calc</display-name>
    <module>
        <ejb>calc.jar</ejb>
    </module>    
</application>

[5] Created a build.xml that will package an EAR file and will place the EAR in the JBoss-default folder:

<project name="JBoss" default="ejbjar" basedir=".">

  <property environment="env"/>
  <property name="src.dir" value="${basedir}"/>
  <property name="src.resources" value="${basedir}/resources"/>
  <property name="jboss.home" value="${env.JBOSS_HOME}"/>
  <property name="build.dir" value="${basedir}/build"/>
  <property name="build.classes.dir" value="${build.dir}/classes"/>

  <!-- Build classpath -->
  <path id="classpath">
        <fileset dir="${jboss.home}/server/default/lib">
            <include name="*.jar"/>
        </fileset>
        <fileset dir="${jboss.home}/server/default/deploy/jboss-bean.deployer">
            <include name="*.jar"/>
        </fileset>
        <fileset dir="${jboss.home}/server/default/deploy/jboss-aop.deployer">
            <include name="*.jar"/>
        </fileset>
        <fileset dir="${jboss.home}/lib">
            <include name="*.jar"/>
        </fileset>
    	<fileset dir="${basedir}/lib">
        	<include name="*.jar"/>
    	</fileset>
	<pathelement location="${build.classes.dir}"/>
	<!-- So that we can get jndi.properties for InitialContext and log4j.xml file -->
	<pathelement location="${basedir}/client-config"/>
  </path>

  <property name="build.classpath" refid="classpath"/>

  <target name="prepare" >
    <mkdir dir="${build.dir}"/>
    <mkdir dir="${build.classes.dir}"/>
  </target>

  <target name="compile" depends="prepare">
    <javac srcdir="${src.dir}"
           destdir="${build.classes.dir}"
           debug="on"
           deprecation="on"
           optimize="off"
           includes="**">
            <classpath refid="classpath"/>
    </javac>
  </target>

  <target name="ejbjar" depends="compile">
    <jar jarfile="build/calc.jar">
      <fileset dir="${build.classes.dir}">
      	  <include name="com/anoop/ejb3/beans/*.class"/>
      </fileset>
    </jar>
  	<ear zipfile="build/calc.ear" appxml="${src.resources}/application.xml">
  	    <fileset dir="build">
  	    	<include name="calc.jar"/>
  	    </fileset>
  	 </ear>
     <copy file="build/calc.ear" todir="${jboss.home}/server/default/deploy"/>
  </target>

</project>

[6] AFter running the build file, I can see the following JBoss server console:

17:56:27,658 INFO [EARDeployer] Init J2EE application: file:/H:/jboss-4.0.4/server/default/deploy/calc.ear
17:56:28,017 INFO [EARDeployer] Started J2EE application: file:/H:/jboss-4.0.4/server/default/deploy/calc.ear

[7] However there is no entry corresponding to the Calc bean/interfaces in the JNDIView MBean on the JMX Console.

[8] And consequently when I run the client it fails:-

Exception in thread "main" javax.naming.NameNotFoundException: Calc not bound
at org.jnp.server.NamingServer.getBinding(NamingServer.java:529)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:537)
at org.jnp.server.NamingServer.getObject(NamingServer.java:543)


Any help will be hugely appreciated.

[Peter Johnson]

I think that the EJB should be named "calc/Calc/remote", is that name in the JNDI tree?

What version of JBoss AS are you using?

Could you post the contents of calc.ear? To do so, run the following:

jar -tf calc.ear