Error in deploying EJB

[1819607]

I am tying to deploy a simple Session Bean to print " Hello World". I used ejb-jar.xml and jboss.xml as Deployment Descripitor and build.xml to bundle the application into a jar file using Ant. Then I get the following error:

Verification of Enterprise Bean failed.
org.jboss.deployment.DeploymentInfo@ce3b86eb

Can anyone help me how to find out the description of this error massege

[the-gtm]

It means that your EJB packaging isn't valid, you should see another message explaining what's wrong on the console.
This could come from ejb-jar.xml, wrong interface ...