ENC setup failed

[sanjuro]

I'm trying to get some experience with JBoss 5 by trying out the examples from the Sun Java 5 EE tutorial (http://java.sun.com/javaee/5/docs/tutorial/doc/gfiud.html).

However when I try to deploy either bookstore1 or bookstore2 on a standaard JBoss 5 all configuration I get the following error:

2008-12-11 21:02:38,171 ERROR [org.jboss.web.tomcat.service.deployers.TomcatDeployment] (http-127.0.0.1-8080-1) ENC setup failed
java.lang.NullPointerException
 at org.jboss.injection.PersistenceUnitHandler.getEntityManagerFactory(PersistenceUnitHandler.java:167)
...

I can't find many references to ENC. What is ENC? And how do I get it to work?

[sanjuro]

I found the problem: turns out JBoss doesn't like the / character in JNDI names. Changing 'jdbc/BookDB' in persistence.xml into 'java:BookDB' and creating a datasource with the name 'BookDB' solves the problem.

[ravx]

I have the same problem.

[knyazsh]

In my case this meant that there is some problem to the persistence.xml

4 example: my

<jta-data-source>maskedworldDatasource</jta-data-source>

was incorrect.