javax.naming.NameNotFoundException: CMPHome not bound

[mallikarjun_nbsg]

javax.naming.NameNotFoundException: CMPHome not bound


Goal of the Program: Client is calling Session Bean which is a remote call and Session Bean is calling CMP Bean as a Local Call. So while making a local call there is an Exception (javax.naming.NameNotFoundException: CMPHome not bound). ie while lookup.

Here are the XML files and code:
In the bean class: making a local call

try {
log.info("entered in try");

log.info("before lookup in Empbean");
InitialContext ic = new InitialContext();
Object ojb= ic.lookup("java:comp/env/CMPHome");
home = (CMPHome)PortableRemoteObject.narrow(ojb, EmpBean.class);


log.info("after lookup in Empbean");

log.info("CMP home created");
} catch (Exception e) {
log.info("Exception in ejbCreate " + e);
}


<?xml version="1.0" ?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://www.jboss.org/j2ee/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
<enterprise-beans>

<ejb-name>Employee Session</ejb-name>
com.test.EmpHome
com.test.EmpRemote
<ejb-class>com.test.EmpBean</ejb-class>
<session-type>Stateful</session-type>
<transaction-type>Bean</transaction-type>
<ejb-ref>
This is the reference to the CMP bean
<ejb-ref-name>ejb/CMPHome</ejb-ref-name>
<ejb-ref-type>Entity</ejb-ref-type>
<ejb-link>CMPHome</ejb-link>
com.test.CMPHome
com.test.CMPRemote
</ejb-ref>
<resource-ref>
<res-ref-name>jdbc/MySql</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>




<ejb-name>CMPHome</ejb-name>
<local-home>com.test.CMPHome</local-home>
com.test.CMPRemote
<ejb-class>com.test.CMPBean</ejb-class>
<persistence-type>Container</persistence-type>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>Employee</abstract-schema-name>
<prim-key-class>java.lang.String</prim-key-class>
False
<cmp-field>
<field-name>id</field-name>
</cmp-field>
<cmp-field>
<field-name>empId</field-name>
</cmp-field>
<cmp-field>
<field-name>empName</field-name>
</cmp-field>
<primkey-field>id</primkey-field>

Gets whole collection of Employees
<query-method>
<method-name>findAll</method-name>
<method-params/>
</query-method>
<ejb-ql>Select OBJECT(r) From Employee r</ejb-ql>



</enterprise-beans>

<assembly-descriptor>
<container-transaction>

<ejb-name>CMPHome</ejb-name>
<method-name>*</method-name>

<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>

</ejb-jar>



<?xml version="1.0" ?>
<!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 4.0//EN" "http://www.jboss.org/j2ee/dtd/jboss_4_0.dtd">

<enterprise-beans>

<ejb-name>Employee Session</ejb-name>
<jndi-name>Employee Session</jndi-name>
<resource-ref>
<res-ref-name>jdbc/MySql</res-ref-name>
<resource-name>MySql</resource-name>
</resource-ref>


<ejb-name>CMPHome</ejb-name>
<jndi-name>CMPRemote</jndi-name>
<local-jndi-name>CMPHome</local-jndi-name>
<resource-ref>
<res-ref-name>jdbc/MySql</res-ref-name>
<resource-name>MySql</resource-name>
</resource-ref>


</enterprise-beans>

<resource-managers>
<resource-manager>
<res-name>MySql</res-name>
<res-jndi-name>java:/MySqlDS</res-jndi-name>
</resource-manager>
</resource-managers>




The Exception is while lookup of local call from the above bean code. Please help me out.

Thank you,
Mallikarjun.

[jaikiran]

<ejb-ref-name>ejb/CMPHome</ejb-ref-name>

Based on this ejb-ref-name, your lookup string is incorrect

Object ojb= ic.lookup("java:comp/env/CMPHome");

Change the lookup to

Object ojb= ic.lookup("java:comp/env/ejb/CMPHome");

P.S: While posting the logs or code or xml content, remember to wrap it in a code block using the Code button in the message editor window and please hit the Preview button to make sure your post is correctly formatted

[mallikarjun_nbsg]

I have changed code given but I am still getting the same Exception as javax.naming.NameNotFoundException: CMPHome not bound...is the Jboss.xml correct when I am referring to make a local call.

[jaikiran]

Use the jmx-console to check the jndi tree contents as explained at http://wiki.jboss.org/wiki/DisplayTheJNDITreeWithTheJMXConsole. Check what's the jndi-name in the java:comp/env namespace of your bean. Then use that name for doing the lookup.

[mallikarjun_nbsg]

InitialContext ic = new InitialContext();
 Object ojb= ic.lookup("java:comp/env/ejb/CMPHome");
 home = (CMPHome)PortableRemoteObject.narrow(ojb, EmpBean.class);

JMS- Console tree view

[img]java:comp namespace of the Employee Session bean:
+- UserTransaction (class: javax.transaction.UserTransaction)
+- env (class: org.jnp.interfaces.NamingContext)
| +- jdbc (class: org.jnp.interfaces.NamingContext)
| | +- MySql[link -> java:/DefaultDS] (class: javax.naming.LinkRef)
| +- ejb (class: org.jnp.interfaces.NamingContext)
| | +- CMPHome[link -> CMPHome] (class: javax.naming.LinkRef)[/img]

The Exception we are getting INFO: Exception in ejbCreate javax.naming.NamingException: Could not dereference object [Root exception is javax.naming.NameNotFoundException: CMPHome not bound]

1. Does the Initinal Context requires any properties as we do in the client side?
2. Is the lookup path correct?

[mallikarjun_nbsg]

Hi Jaikiran,

I have executed successfully with no exceptions. The solution was I have changed ejb references to ejb local references which sloved the problem. This I got to know from the JMXConsole.

Thanks for the suggestion.

Thank you,
Mallikarjun.