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

[zagarol]

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