Lookup an EJB from a different application, deployed on the same server, in JBoss

Question:
I have a web application through which i want to access an EJB which is deployed as a separate appliaction on the same server. How do i do it?
Answer:
In the web.xml of your war(the web application through which you want to access the EJB), have the following entry:

<ejb-ref>

<ejb-ref-name>GiveAnNameByWhichYouWouldLikeToReferTheBeanInYourWebApp</ejb-ref-name>
    <ejb-ref-type>session</ejb-ref-type>
    <home>packageName.ClassNameOfTheHomeObjectOfTheBeanYouWantToRefer</home>
    <remote>packageName.ClassNameOfTheRemoteObjectOfTheBeanYouWantToRefer</remote>
  </ejb-ref>
  

In the jboss-web.xml of your war, have the following entry:

  <ejb-ref>
      <!--The ejb-ref-name should be same as the one given in the web.xml above -->
      <ejb-ref-name>GiveANameByWhichYouWouldLikeToReferTheBeanInYourWebApp</ejb-ref-name>
      <!--Example:somecontext/somejndiName.YouWillFindThisJndiNameInTheJboss.xmlOfTheEJB-->
      <jndi-name>TheJndiNametoWhichTheBeanIsBound</jndi-name>
   </ejb-ref>
   
  

For more info, have a look at the dtds of web.xml (http://java.sun.com/dtd/web-app_2_3.dtd) and jboss-web.xml(http://www.jboss.org/j2ee/dtd)
In your code, do the lookup as:

 
Context ic = new InitialContext();
Object home=ic.lookup("java:comp/env/TheNameThatYouHadGivenInEjb-ref-nameTagOfJbossWeb.xml");

Here’s an example:

web.xml:

<ejb-ref>
    <ejb-ref-name>MyTestBean</ejb-ref-name>
    <ejb-ref-type>session</ejb-ref-type>
    <home>com.test.ejb.MyBeanHome</home>
    <remote>com.test.ejb.MyBeanRemote</remote>
  </ejb-ref>
  

jboss-web.xml:

 <ejb-ref>
   <ejb-ref-name>MyTestBean</ejb-ref-name>
   <jndi-name>myejb/test/MyTestBean</jndi-name>
  </ejb-ref>
 
 

Lookup code:

Context ic = new InitialContext();
  Object ejbHome = ic.lookup("java:comp/env/MyTestBean");