I'm trying to migrate our AS from JBoss 4.2.2 to JBoss 5.1.0. I've found various tips on updating xml headers and such. Updated JMS configurations.

When I deploy, I get this error:

[Ejb3Configuration] - Could not find any META-INF/persistence.xml file in the classpath

This is my EAR structure:

EAR

-- lib

   --various hibernate jars

-- META-INF

   -- MANIFEST.MF

   -- application.xml

   -- jboss-app.xml

-- utils.jar

-- persistenceModule.jar

   -- META-INF/persistence.xml

-- server.jar

-- gui.war

This is application.xml:

<?xml version="1.0" encoding="UTF-8"?>
<application xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:application="http://java.sun.com/xml/ns/javaee/application_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/application_5.xsd" id="Application_ID" version="5">
  <module>
    <web>
      <web-uri>gui.war</web-uri>
      <context-root>MyUI</context-root>
    </web>
  </module>
  <module>
    <ejb>server.jar</ejb>
  </module>
  <module>
    <ejb>persistenceModule.jar</ejb>
  </module>
</application>

I believe I have the persistence.xml file in the right place. And when JBoss starts up, I see debug that shows entities from persistenceModule.jar being bound to their respective database tables. So I don't understand why it can't find the persistence.xml file when it can load the entities from the same jar.

Any help or suggestions would be greatly appreciated!