5 Replies Latest reply on Jan 21, 2009 12:36 PM by alrubinger

Migrating EJB3 Code from 4.2 to 5.0 and encountering [JBMET

jriley Jan 20, 2009 5:03 PM

I have developed a working EJB3 application in 4.2.2. When I try the applciation in 5.0.0 GA I get a annotation validation exception when loading the Session bean.

I have created a very simple example and get the same problem. Can anyone explain what I am doing wrong.

The interfaces EchoServiceRemote and EchoServiceLocal extend the same EchoService interface where the one method is defined.

package com.echo;

import javax.ejb.Local;
import javax.ejb.Remote;
import javax.ejb.Stateless;


@Stateless( name="ejb/Echo")
@Remote( EchoServiceRemote.class )
@Local( EchoServiceLocal.class )
public class EchoServiceBean implements EchoService{


 public String echo( String msg ) {
 return msg;
 }
}

1. Re: Migrating EJB3 Code from 4.2 to 5.0 and encountering [J

jriley Jan 20, 2009 5:08 PM (in response to jriley)

Opps ... with two different interfaces it is working
Actions
2. Re: Migrating EJB3 Code from 4.2 to 5.0 and encountering [J

alrubinger Jan 20, 2009 7:56 PM (in response to jriley)

Looks like the forum software chopped off the JIRA issue from your topic.

What was the error? There's nothing wrong with that construct assuming:

* There's no @Local or @Remote annotation on EchoService
* EchoServiceRemote does not also extend from EJBObject
* EchoServiceLocal does not also extend from EJBLocalObject

S,
ALR
Actions

3. Re: Migrating EJB3 Code from 4.2 to 5.0 and encountering [J

jriley Jan 21, 2009 10:31 AM (in response to jriley)

I actually found the problem. It was caused by my ejb-jar.xml entries

My entries were something like this:

<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar version="3.0">
 <enterprise-beans>
 <session>
 <ejb-name>PropertyService</ejb-name>
 <remote>com.emageon.properties.service.PropertyService</remote>
 <ejb-class>
 com.emageon.properties.service.ejb.PropertyServiceBean
 </ejb-class>
 <session-type>Stateless</session-type>
 <transaction-type>Container</transaction-type>
 </session>
 </enterprise-beans>
</ejb-jar>

The tags need to be changed to <business-remote>. Here is the corrected content.

<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar version="3.0">

 <enterprise-beans>
 <session>
 <ejb-name>PropertyService</ejb-name>
 <business-remote>com.emageon.properties.service.PropertyService</business-remote>
 <ejb-class>
 com.emageon.properties.service.ejb.PropertyServiceBean
 </ejb-class>
 <session-type>Stateless</session-type>
 <transaction-type>Container</transaction-type>
 </session>
 </enterprise-beans>
</ejb-jar>

4. Re: Migrating EJB3 Code from 4.2 to 5.0 and encountering [J

jriley Jan 21, 2009 10:40 AM (in response to jriley)

Sorry. This post has ended up a little confusing.

[JBMETA-130] Was the error I got when trying to get EJB3 Session beans migrated from 4.2.x to 5.0.0 GA. In my case I was NOT trying to be EJB2.x compliant.

If you have this problem, check these items:

1. Make sure @Local and @Remote use a different interface.

2. Make sure any beans referenced in ebj-jar.xml file use the <business-remote> tag instead of the and use <business-local> instead of
Actions
5. Re: Migrating EJB3 Code from 4.2 to 5.0 and encountering [J

alrubinger Jan 21, 2009 12:36 PM (in response to jriley)

Yep.

* @Remote references a business interface (EJB 3.x View)
* is a Remote Component interface (extends EJBObject, an EJB 2.x View)
* <business-remote> is the XML equivalent to @Remote
* There is no annotation for , we read it in via the return types of @Home create methods.

S,
ALR
Actions

Go to original post