NameNotFoundException - but the jndi bound

[Mike Thomson]

After played with Stateful and Stateless session bean, I am trying for entity bean (BMP) and I am encountering error one after other.
Actually I have checked the ejb-jar.xml and jboss.xml, there I have configured the Entity Bean - home ref. While the server deploying yhe ear file also, I am getting
"Bound EJB Home 'HelloBMPEntity' to jndi 'ejb/HelloBMPEntity'"

But, when I tried to lookup it from servlet, I am getting the
"javax.naming.NameNotFoundException: HelloBMPEntity not bound" exception

Object ref2 = context.lookup("java:/comp/env/ejb/HelloBMPEntity");
homeBMPEntity = (HelloBMPEntityHome)PortableRemoteObject.narrow(ref2,HelloBMPEntityHome.class);
System.out.println("homeBMPEntity ::"+homeBMPEntity);			

16:44:38,375 INFO  [EARDeployer] Init J2EE application: file:/C:/Mike/Software/jboss-4.2.2.GA/jboss-4.2.2.GA/server/default/deploy/HelloApp.ear
16:44:39,797 INFO  [EjbModule] Deploying HelloBMPEntity
16:44:39,860 INFO  [EjbModule] Deploying Hello
16:44:39,931 INFO  [EjbModule] Deploying HelloStateful
[b]16:44:42,653 INFO  [ProxyFactory] Bound EJB Home 'HelloBMPEntity' to jndi 'ejb/HelloBMPEntity'
16:44:42,784 INFO  [ProxyFactory] Bound EJB Home 'Hello' to jndi 'ejb/Hello'
16:44:42,915 INFO  [ProxyFactory] Bound EJB Home 'HelloStateful' to jndi 'ejb/HelloStateful'
16:44:42,946 INFO  [EJBDeployer] Deployed: file:/C:/Mike/Software/jboss-4.2.2.GA/jboss-4.2.2.GA/server/default/tmp/deploy/tmp56562HelloApp.ear-contents/HelloEJB.jar[/b]
16:44:43,254 INFO  [TomcatDeployer] deploy, ctxPath=/hello, warUrl=.../tmp/deploy/tmp56562HelloApp.ear-contents/HelloWeb-exp.war/
16:44:44,657 WARN  [TomcatDeployer] Failed to setup clustering, clustering disabled. NoClassDefFoundError: null
16:44:44,878 INFO  [EARDeployer] Started J2EE application: file:/C:/Mike/Software/jboss-4.2.2.GA/jboss-4.2.2.GA/server/default/deploy/HelloApp.ear
16:45:11,211 INFO  [STDOUT] home ::ejb/HelloHome
16:45:11,224 INFO  [STDOUT] homeStateful ::ejb/HelloStatefulHome
[b][i]16:45:11,226 ERROR [STDERR] javax.naming.NameNotFoundException: HelloBMPEntity not bound
16:45:11,227 ERROR [STDERR] 	at org.jnp.server.NamingServer.getBinding(NamingServer.java:529)
16:45:11,227 ERROR [STDERR] 	at org.jnp.server.NamingServer.getBinding(NamingServer.java:537)
16:45:11,228 ERROR [STDERR] 	at org.jnp.server.NamingServer.getObject(NamingServer.java:543)
16:45:11,228 ERROR [STDERR] 	at org.jnp.server.NamingServer.lookup(NamingServer.java:296)
16:45:11,232 ERROR [STDERR] 	at org.jnp.server.NamingServer.lookup(NamingServer.java:270)
16:45:11,232 ERROR [STDERR] 	at org.jnp.server.NamingServer.lookup(NamingServer.java:270)
16:45:11,233 ERROR [STDERR] 	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:667)
16:45:11,233 ERROR [STDERR] 	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:774)
16:45:11,233 ERROR [STDERR] 	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627)
16:45:11,233 ERROR [STDERR] 	at javax.naming.InitialContext.lookup(Unknown Source)
16:45:11,239 ERROR [STDERR] 	at com.web.ComputeServlet.init(ComputeServlet.java:89)
16:45:11,240 ERROR [STDERR] 	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1161)
16:45:11,240 ERROR [STDERR] 	at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:806)
16:45:11,240 ERROR [STDERR] 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
16:45:11,240 ERROR [STDERR] 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
16:45:11,241 ERROR [STDERR] 	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
16:45:11,241 ERROR [STDERR] 	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
16:45:11,241 ERROR [STDERR] 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
16:45:11,241 ERROR [STDERR] 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
16:45:11,241 ERROR [STDERR] 	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
16:45:11,407 ERROR [STDERR] 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
16:45:11,407 ERROR [STDERR] 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
16:45:11,407 ERROR [STDERR] 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
16:45:11,407 ERROR [STDERR] 	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
16:45:11,408 ERROR [STDERR] 	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
16:45:11,408 ERROR [STDERR] 	at java.lang.Thread.run(Unknown Source)[/i][/b]
16:45:11,410 INFO  [STDOUT]

jboss.xml
=========

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 3.0//EN" "http://www.jboss.org/j2ee/dtd/jboss_3_0.dtd">

<jboss>
   <enterprise-beans>
     <entity>
         <ejb-name>HelloBMPEntity</ejb-name>
         <jndi-name>ejb/HelloBMPEntity</jndi-name>         
      </entity>

      <session>
         <ejb-name>Hello</ejb-name>
         <jndi-name>ejb/Hello</jndi-name>

      </session>
      <session>
         <ejb-name>HelloStateful</ejb-name>
         <jndi-name>ejb/HelloStateful</jndi-name>

      </session>
   </enterprise-beans>
   <resource-managers>
   </resource-managers>
</jboss>

ejb-jar.xml
===========

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar >
   <description><![CDATA[No Description.]]></description>
   <display-name>Generated by XDoclet</display-name>

   <enterprise-beans>
      <!-- Session Beans -->
      <session >
         <description><![CDATA[Description for Hello]]></description>
         <display-name>Name for Hello</display-name>

         <ejb-name>Hello</ejb-name>

         <home>com.interfaces.HelloHome</home>
         <remote>com.interfaces.Hello</remote>
         <ejb-class>com.ejb.HelloBean</ejb-class>
         <session-type>Stateless</session-type>
         <transaction-type>Container</transaction-type>
      </session>

      <session >
         <description><![CDATA[Description for HelloStateful]]></description>
         <display-name>Name for HelloStateful</display-name>

         <ejb-name>HelloStateful</ejb-name>

         <home>com.interfaces.HelloStatefulHome</home>
         <remote>com.interfaces.HelloStateful</remote>
         <ejb-class>com.ejb.HelloStatefulBean</ejb-class>
         <session-type>Stateful</session-type>
         <transaction-type>Container</transaction-type>
      </session>


      <!-- Entity Beans -->
      <entity >
         <description><![CDATA[Description for HelloBMPEntity]]></description>
         <display-name>Name for HelloBMPEntity</display-name>

         <ejb-name>HelloBMPEntity</ejb-name>

         <home>com.interfaces.HelloBMPEntityHome</home>
         <remote>com.interfaces.HelloBMPEntity</remote>

         <ejb-class>com.ejb.HelloBMPEntityBean</ejb-class>
         <persistence-type>Bean</persistence-type>
         <prim-key-class>java.lang.Integer</prim-key-class>
         <reentrant>False</reentrant>
      </entity>
</ejb-jar>

[Jesus Angeles]

To see what actually are deployed and named, and their actual JNDI names, you can look at the JNDI VIEW.

When I had this issue, I found in google the below link, which happens to be written by one of Javaranch's bartenders - Jaikiran.

http://jaitechwriteups.blogspot.com/2007/10/why-do-i-get-namenotfoundexception.html

The above will show you how to go to the JNDI VIEW, and other stuff you need to solve this problem.

[Mike Thomson]

Thank for your help. It's solving most of my problems with repsect to JNDI lookup..

[Jesus Angeles]

It also did solve my problem last time. And it still does help me up to now on new projects. Thanks to Jaikiran.