0 Replies Latest reply on Nov 2, 2007 6:44 AM by Shane Preater

    Broken local-home-jndi-name in jboss.xml

    Shane Preater Newbie

      Hi,

      I think there is a bug in the handling of local-home-jndi-name when using the ejb3 deployer.

      I am trying to set up some local SLSB beans to respond to a legacy SLSB. Initally when I tried this I get ClassCastExceptions on the proxy returned from JNDI. I corrected this on remote connections by replacing the jndi-name with home-jndi-name in jboss.xml.

      Logically I thought the fix for local connections would be to use local-home-jndi-name, this deploys fine but the corresponding JNDI entry is actually a proxy to the local interface, not the local home interface.

      Below is the test code I am using to verify this:

      Remote bean:

      public class RemoteHomeTestEJB implements SessionBean {
      
       private SessionContext context = null;
      
       /*
       * (non-Javadoc)
       *
       * @see javax.ejb.SessionBean#ejbActivate()
       */
       public void ejbActivate() throws EJBException, RemoteException {
       // TODO Auto-generated method stub
      
       }
      
       /*
       * (non-Javadoc)
       *
       * @see javax.ejb.SessionBean#ejbPassivate()
       */
       public void ejbPassivate() throws EJBException, RemoteException {
       // TODO Auto-generated method stub
      
       }
      
       /*
       * (non-Javadoc)
       *
       * @see javax.ejb.SessionBean#ejbRemove()
       */
       public void ejbRemove() throws EJBException, RemoteException {
       // TODO Auto-generated method stub
      
       }
      
       public void ejbCreate() {
       //Do nothing.
       }
      
       /*
       * (non-Javadoc)
       *
       * @see javax.ejb.SessionBean#setSessionContext(javax.ejb.SessionContext)
       */
       public void setSessionContext(SessionContext ctx) throws EJBException,
       RemoteException {
       context = ctx;
       }
      
       public String getHello() {
       try {
       LocalHomeTestHome home = null;
       home = ServiceLocator.locateHome(LocalHomeTestHome.class,
       "java:comp/env/local/LocalHomeTest");
       return home.create().getHello();
       } catch (Exception e) {
       StringWriter stringWriter = new StringWriter();
       PrintWriter writer = new PrintWriter(stringWriter);
       e.printStackTrace(writer);
       return stringWriter.toString();
       }
       }
      }
      


      ServiceLocater.java
      public class ServiceLocator {
       private static final Logger LOG = Logger.getLogger(ServiceLocator.class);
      
       @SuppressWarnings("unchecked")
       public static <T> T locateHome(Class<T> clazz, String location)
       throws NamingException {
       T home = null;
       Context ic = new InitialContext();
      
       Object potentialHome = ic.lookup(location);
       if (clazz.isInstance(potentialHome)) {
       home = (T) potentialHome;
       } else {
       home = (T) PortableRemoteObject.narrow(potentialHome, clazz);
       }
       return home;
       }
      }
      


      Local bean:
      public class LocalHomeTestEJB implements SessionBean {
      
       /* (non-Javadoc)
       * @see javax.ejb.SessionBean#ejbActivate()
       */
       public void ejbActivate() throws EJBException, RemoteException {
       // TODO Auto-generated method stub
      
       }
      
       /* (non-Javadoc)
       * @see javax.ejb.SessionBean#ejbPassivate()
       */
       public void ejbPassivate() throws EJBException, RemoteException {
       // TODO Auto-generated method stub
      
       }
      
       public void ejbCreate() {
       //Do nothing.
       }
      
       /* (non-Javadoc)
       * @see javax.ejb.SessionBean#ejbRemove()
       */
       public void ejbRemove() throws EJBException, RemoteException {
       // TODO Auto-generated method stub
      
       }
      
       /* (non-Javadoc)
       * @see javax.ejb.SessionBean#setSessionContext(javax.ejb.SessionContext)
       */
       public void setSessionContext(SessionContext ctx) throws EJBException,
       RemoteException {
       // TODO Auto-generated method stub
      
       }
      
       public String getHello() {
       return "Hello from Aerosystems";
       }
      
      }
      

      ejb-jar.xml:
      <ejb-jar version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd">
      
       <description>Simple migration testing to see how to move to EJB 3</description>
       <display-name>EjbMigration</display-name>
      
       <enterprise-beans>
       <session>
       <description><![CDATA[EcardGenerationFacadeSessionEJB Bean]]></description>
       <display-name>LocalHomeTest</display-name>
      
       <ejb-name>LocalHomeTest</ejb-name>
       <remote>com.aeroint.ejbtest.common.RemoteHomeTestInterface</remote>
       <local-home>com.aeroint.ejbtest.server.session.LocalHomeTestHome</local-home>
       <local>com.aeroint.ejbtest.server.session.LocalHomeTestInterface</local>
       <ejb-class>com.aeroint.ejbtest.server.session.LocalHomeTestEJB</ejb-class>
      
       <session-type>Stateless</session-type>
       <transaction-type>Container</transaction-type>
       </session>
      
       <session>
       <description><![CDATA[EcardUpdateFacadeSessionEJB Bean]]></description>
       <display-name>RemoteHomeTest</display-name>
      
       <ejb-name>RemoteHomeTest</ejb-name>
      
       <home>com.aeroint.ejbtest.common.RemoteHomeTestHome</home>
       <remote>com.aeroint.ejbtest.common.RemoteHomeTestInterface</remote>
       <ejb-class>com.aeroint.ejbtest.server.facade.RemoteHomeTestEJB</ejb-class>
       <session-type>Stateless</session-type>
       <transaction-type>Container</transaction-type>
      
       <ejb-local-ref >
       <ejb-ref-name>local/LocalHomeTest</ejb-ref-name>
       <ejb-ref-type>Session</ejb-ref-type>
       <local-home>com.aeroint.ejbtest.server.session.LocalHomeTestHome</local-home>
       <local>com.aeroint.ejbtest.server.session.LocalHomeTestInterface</local>
       <ejb-link>LocalHomeTest</ejb-link>
       </ejb-local-ref>
      
       </session>
       </enterprise-beans>
      </ejb-jar>
      


      jboss.xml
      <jboss xmlns="http://java.sun.com/xml/ns/javaee"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
      http://www.jboss.org/j2ee/schema/jboss_5_0.xsd"
       version="3.0">
       <enterprise-beans>
       <session>
       <ejb-name>RemoteHomeTest</ejb-name>
       <home-jndi-name>remote/RemoteHomeTest</home-jndi-name>
       </session>
       <session>
       <ejb-name>LocalHomeTest</ejb-name>
       <local-home-jndi-name>local/LocalHomeTest</local-home-jndi-name>
       </session>
       </enterprise-beans>
      </jboss>
      


      Thanks in advance,
      Shane