Deployed EJB Not Bound

Question

I deplyed a simple EJB on S17AS. The server.log tells me it is deployed successful.
CORE3282: stdout: ejbCreate() on obj samples.jdbc.simple.ejb.GreeterDBBean@1017ca1
CORE3282: stdout: ejbCreate() on obj samples.jdbc.simple.ejb.GreeterDBBean@9d5793
LDR5010: All ejb(s) of [simpleEjb] loaded successfully!
The relevant simpleEjb.jar_verified.txt is as follows
     Test Name : tests.ejb.ias.ASEjbJndiName
     Test Assertion :
     Test Description : PASSED [AS-EJB ejb] : jndi-name is simpleHome
However, the server log did not indicate the EJB is bound even if I set the log level to finest.
Therefore when I tried to access it, I get the following error
Exception in thread "main" javax.naming.NameNotFoundException: No object bound f
or java:comp/env/ejb/simpleHome
at com.sun.enterprise.naming.java.javaURLContext.lookup(javaURLContext.j
ava:116)
at javax.naming.InitialContext.lookup(InitialContext.java:347)
at HelloClient.main(HelloClient.java:61)
The client code is as follows
String JNDIName = "java:comp/env/ejb/simpleHome";
myGreeterDBHome = (GreeterDBHome) javax.rmi.PortableRemoteObject.narrow(
               initContext.lookup(JNDIName), GreeterDBHome.class);
The sun-ejb-jar.xml is as follows
<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright 2002 Sun Microsystems, Inc. All rights reserved.
-->
<!DOCTYPE sun-ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Sun ONE Application Server 7.0 EJB 2.0//EN' 'http://www.sun.com/software/sunone/appserver/dtds/sun-ejb-jar_2_0-0.dtd'>
<sun-ejb-jar>
<enterprise-beans>
<name>simpleEjb.jar</name>
<ejb>
<ejb-name>simpleEJB</ejb-name>
<jndi-name>simpleHome</jndi-name>
<is-read-only-bean>false</is-read-only-bean>
               <bean-pool>
                    <steady-pool-size>2</steady-pool-size>
                    <resize-quantity>5</resize-quantity>
                    <max-pool-size>20</max-pool-size>
                    <pool-idle-timeout-in-seconds>3600</pool-idle-timeout-in-seconds>
               </bean-pool>
</ejb>
</enterprise-beans>
</sun-ejb-jar>
I tried to use lookup for both "java:comp/env/ejb/simpleHome" and "java:comp/env/simpleHome". None succeed.
Does anyone know why the ejb is deployed successful but not bound?
Sha

Answer 1

Hi, Parsuram,
I did restart the server and the error is the same.
Here is the sample code. I did not change them. Only the names in deployment descriptors are modified.
Below is the info.
*************************Remote Interface
Copyright � 2002 Sun Microsystems, Inc. All rights reserved.
package samples.jdbc.simple.ejb;
* Remote interface for the GreeterDBEJB. The remote interface defines all possible
* business methods for the bean. These are the methods going to be invoked remotely
* by the servlets, once they have a reference to the remote interface.
* Servlets generally take the help of JNDI to lookup the bean's home interface and
* then use the home interface to obtain references to the bean's remote interface.
public interface GreeterDB extends javax.ejb.EJBObject {
* Returns the greeting String such as "Good morning, John"
     * @return the greeting String
public String getGreeting() throws java.rmi.RemoteException;
*************************Home Interface
Copyright � 2002 Sun Microsystems, Inc. All rights reserved.
package samples.jdbc.simple.ejb;
* Home interface for the GreeterDB EJB. Clients generally use home interface
* to obtain references to the bean's remote interface.
public interface GreeterDBHome extends javax.ejb.EJBHome {
* Gets a reference to the remote interface to the GreeterDBBean.
     * @exception throws CreateException and RemoteException.
public GreeterDB create() throws java.rmi.RemoteException, javax.ejb.CreateException;
*************************Bean Class
Copyright � 2002 Sun Microsystems, Inc. All rights reserved.
package samples.jdbc.simple.ejb;
import java.util.*;
import java.io.*;
* A simple stateless session bean which generates the greeting string for jdbc-simple
* application. This bean implements the business method as declared by the remote interface.
public class GreeterDBBean implements javax.ejb.SessionBean {
private javax.ejb.SessionContext m_ctx = null;
* Sets the session context. Required by EJB spec.
     * @param ctx A SessionContext object.
public void setSessionContext(javax.ejb.SessionContext ctx) {
m_ctx = ctx;
* Creates a bean. Required by EJB spec.
public void ejbCreate() {
System.out.println("ejbCreate() on obj " + this);
* Removes a bean. Required by EJB spec.
public void ejbRemove() {
System.out.println("ejbRemove() on obj " + this);
* Loads the state of the bean from secondary storage. Required by EJB spec.
public void ejbActivate() {
System.out.println("ejbActivate() on obj " + this);
* Keeps the state of the bean to secondary storage. Required by EJB spec.
public void ejbPassivate() {
System.out.println("ejbPassivate() on obj " + this);
* Required by EJB spec.
public void GreeterDBBean() {
* Returns the Greeting String based on the time
* @return the Greeting String.
public String getGreeting() throws java.rmi.RemoteException {
System.out.println("GreeterDB EJB is determining message...");
String message = null;
Calendar calendar = new GregorianCalendar();
int currentHour = calendar.get(Calendar.HOUR_OF_DAY);
if(currentHour < 12) message = "morning";
else {
if( (currentHour >= 12) &&
(calendar.get(Calendar.HOUR_OF_DAY) < 18)) message = "afternoon";
else message = "evening";
System.out.println("- Message determined successfully");
return message;
************************ejb-jar.xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright 2002 Sun Microsystems, Inc. All rights reserved.
-->
<!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 1.1//EN' 'http://java.sun.com/dtd/ejb-jar_2_0.dtd'>
<ejb-jar>
<enterprise-beans>
<session>
<display-name>simple</display-name>
<ejb-name>simpleEJB</ejb-name>
<home>samples.jdbc.simple.ejb.GreeterDBHome</home>
<remote>samples.jdbc.simple.ejb.GreeterDB</remote>
<ejb-class>samples.jdbc.simple.ejb.GreeterDBBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Bean</transaction-type>
</session>
</enterprise-beans>
</ejb-jar>
************************sun-ejb-jar.xml
<sun-ejb-jar>
<enterprise-beans>
<name>simpleEjb.jar</name>
<ejb>
<ejb-name>simpleEJB</ejb-name>
<jndi-name>ejb/simpleHome</jndi-name>
<is-read-only-bean>false</is-read-only-bean>
               <bean-pool>
                    <steady-pool-size>2</steady-pool-size>
                    <resize-quantity>5</resize-quantity>
                    <max-pool-size>20</max-pool-size>
                    <pool-idle-timeout-in-seconds>3600</pool-idle-timeout-in-seconds>
               </bean-pool>
</ejb>
</enterprise-beans>
</sun-ejb-jar>
************************Assemble Info
C:\Sun\AppServer7\samples\jdbc\simple\assemble\jar>jar cvf simpleEjb.jar *
added manifest
ignoring entry META-INF/
adding: META-INF/ejb-jar.xml(in = 710) (out= 350)(deflated 50%)
adding: META-INF/sun-ejb-jar.xml(in = 803) (out= 424)(deflated 47%)
adding: samples/(in = 0) (out= 0)(stored 0%)
adding: samples/jdbc/(in = 0) (out= 0)(stored 0%)
adding: samples/jdbc/simple/(in = 0) (out= 0)(stored 0%)
adding: samples/jdbc/simple/ejb/(in = 0) (out= 0)(stored 0%)
adding: samples/jdbc/simple/ejb/GreeterDB.class(in = 210) (out= 168)(deflated 20%)
adding: samples/jdbc/simple/ejb/GreeterDBBean.class(in = 1441) (out= 734)(deflated 49%)
adding: samples/jdbc/simple/ejb/GreeterDBHome.class(in = 257) (out= 177)(deflated 31%)
C:\Sun\AppServer7\samples\jdbc\simple\assemble\jar>jar tf simpleEJB.jar
META-INF/
META-INF/MANIFEST.MF
META-INF/ejb-jar.xml
META-INF/sun-ejb-jar.xml
samples/
samples/jdbc/
samples/jdbc/simple/
samples/jdbc/simple/ejb/
samples/jdbc/simple/ejb/GreeterDB.class
samples/jdbc/simple/ejb/GreeterDBBean.class
samples/jdbc/simple/ejb/GreeterDBHome.class
******************************** Deployment Info
server1: Applications: EJB Modules: simpleEjb
EJB Module Name: simpleEjb
Location: C:\Sun\AppServer7\domains\domain1\server1\applications\j2ee-modules\simpleEjb_1
******************************** simplEJB.jar_verified.txt
STATIC VERIFICATION RESULTS
     NUMBER OF FAILURES/WARNINGS/ERRORS
     # of Failures : 0
# of Warnings : 1
     # of Errors : 0
     Test Name : tests.ejb.ias.ASEjbJndiName
     Test Assertion :
     Test Description : PASSED [AS-EJB ejb] : jndi-name is ejb/simpleHome
     WARNINGS :
     Test Name : tests.ejb.businessmethod.BusinessMethodException
     Test Assertion : Enterprise bean business method throws RemoteException test
     Test Description : For [ module_simpleEjb#simpleEjb#simpleEJB ]
For EJB Class [ samples.jdbc.simple.ejb.GreeterDBBean ] business method [ getGreeting ]
Error: Compatibility Note: A public business method [ getGreeting ] was found, but EJB 1.0 allowed the business methods to throw the java.rmi.RemoteException to indicate a non-application exception. This practice is deprecated in EJB 1.1 ---an EJB 1.1 compliant enterprise bean should throw the javax.ejb.EJBException or another RuntimeException to indicate non-application exceptions to the Container.
*********************** server log (no binding info)
[05/Jan/2003:17:07:19] FINE ( 1760): [EJBClassPathUtils] EJB Class Path for [simpleEjb] is ...
[C:\Sun\AppServer7\domains\domain1\server1\applications\j2ee-modules\simpleEjb_1, C:\Sun\AppServer7\domains\domain1\server1\generated\ejb\j2ee-modules\simpleEjb]
[05/Jan/2003:17:07:20] FINE ( 1760): Loading StatelessSessionContainer...
[05/Jan/2003:17:07:20] FINE ( 1760): [BaseContainer] Registered EJB [simpleEJB] with MBeanServer under name [ias:instance-name=server1,mclass=stateless-session-bean,name=simpleEJB,root=root,standalone-ejb-module=simpleEjb,type=monitor]
[05/Jan/2003:17:07:20] FINE ( 1760): main: name = "samples.jdbc.simple.ejb._GreeterDBBean_RemoteHomeImpl_Tie", codebase = ""
[05/Jan/2003:17:07:20] FINE ( 1760): main: name = "samples.jdbc.simple.ejb._GreeterDBHome_Stub", codebase = ""
[05/Jan/2003:17:07:20] FINE ( 1760): main: name = "samples.jdbc.simple.ejb._GreeterDBHome_Stub", codebase = ""
[05/Jan/2003:17:07:20] FINE ( 1760): main: name = "samples.jdbc.simple.ejb._GreeterDBBean_EJBObjectImpl_Tie", codebase = ""
[05/Jan/2003:17:07:20] FINE ( 1760): main: name = "samples.jdbc.simple.ejb._GreeterDB_Stub", codebase = ""
[05/Jan/2003:17:07:20] FINE ( 1760): [Pool-ejb/simpleHome]: Added PoolResizeTimerTask...
[05/Jan/2003:17:07:20] FINE ( 1760): Created container with uinque id: 68275827784351744
[05/Jan/2003:17:07:20] FINE ( 1760): Application deployment successful : com.sun.ejb.containers.StatelessSessionContainer@1083717
[05/Jan/2003:17:07:20] INFO ( 1760): LDR5010: All ejb(s) of [simpleEjb] loaded successfully!
[05/Jan/2003:17:07:22] FINE ( 1760): Started 48 request processing threads
[05/Jan/2003:17:07:22] INFO ( 1760): CORE3274: successful server startup
[05/Jan/2003:17:07:22] FINE ( 1760): The server is now ready to process requests
[05/Jan/2003:17:07:22] INFO ( 1760): CORE3282: stdout: ejbCreate() on obj samples.jdbc.simple.ejb.GreeterDBBean@10613aa
[05/Jan/2003:17:07:22] INFO ( 1760): CORE3282: stdout: ejbCreate() on obj samples.jdbc.simple.ejb.GreeterDBBean@1f52460
[05/Jan/2003:17:07:22] INFO ( 1760): CORE5053: Application onReady complete.
*********************** Client class
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.util.Properties;
import java.util.Hashtable;
import javax.ejb.*;
import java.sql.*;
import javax.sql.*;
import samples.jdbc.simple.ejb.*;
public class HelloClient {
     public static void main(String[] args) throws Exception {
javax.ejb.Handle beanHandle;
GreeterDBHome myGreeterDBHome;
GreeterDB myGreeterDBRemote;
InitialContext initContext = null;
Hashtable env = new java.util.Hashtable(1);
initContext = getContextInfo();
String JNDIName = "java:comp/env/ejb/simpleHome";
System.out.println("- Looking up: " + JNDIName);
myGreeterDBHome = (GreeterDBHome) javax.rmi.PortableRemoteObject.narrow(initContext.lookup(JNDIName), GreeterDBHome.class);
myGreeterDBRemote = myGreeterDBHome.create();
          String theMessage = myGreeterDBRemote.getGreeting();
myGreeterDBRemote.remove();
     public static InitialContext getContextInfo() {
     InitialContext ctx = null;
     String url = "iiop://1st:3700";
     String fac = "com.sun.enterprise.naming.SerialInitContextFactory";
try {
     Properties props = new Properties();
     props.put(Context.INITIAL_CONTEXT_FACTORY, fac);
     props.put(Context.PROVIDER_URL, url);
          ctx = new InitialContext(props);
     catch (NamingException ne){
System.out.println("We were unable to get a connection to " +
" the application server at " + url);
ne.printStackTrace();
return ctx;
*********************** Running Client from command line
C:\Sun\AppServer7\samples\jdbc\simple\assemble\jar>java HelloClient
- Looking up: java:comp/env/ejb/simpleHome
Exception in thread "main" javax.naming.NameNotFoundException: No object bound for java:comp/env/ejb/simpleHome
at com.sun.enterprise.naming.java.javaURLContext.lookup(javaURLContext.java:116)
at javax.naming.InitialContext.lookup(InitialContext.java:347)
at HelloClient.main(HelloClient.java:34)