EJB migration from JBoss 4.2.2 to 5.1.0

[mjkhan21]

Hello.

Migrating EJBs from JBoss 4.2.2 GA to JBoss 5.1.0 GA,
I've run into this:

Error installing to Parse: name=vfszip:/.../my-ejb.jar/ state=Not Installed mode=Manual requiredState=Parse
org.jboss.deployers.spi.DeploymentException: Error creating managed object for vfszip:/.../my-ejb.jar/
...
DEPLOYMENTS IN ERROR:
  Deployment "vfszip:/.../my-ejb.jar/" is in error due to the following reason(s): org.jboss.xb.binding.JBossXBRuntimeException: Element {http://java.sun.com/xml/ns/javaee}jboss is not bound as a global element.

The EJBs are written with EJB3.
And its ejb-jar.xml is as follows:

<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                            http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd"
         version="3.0">

<description><![CDATA[My EJB components]]></description>
<display-name><![CDATA[My EJBs]]></display-name>

<enterprise-beans>
<session>
  <ejb-name>MyManager</ejb-name>
  <remote>my.ejb_package.MyManager$Remote</remote>
  <local>my.ejb_package.MyManager$Local</local>
  <ejb-class>my.ejb_package.MyManagerBean</ejb-class>
  <session-type>Stateless</session-type>
  <transaction-type>Bean</transaction-type>
</session>

<message-driven>
  <ejb-name>MyMessageReceiver</ejb-name>
  <ejb-class>my.ejb_package.MyMessageReceiver</ejb-class>
  <transaction-type>Bean</transaction-type>
  <activation-config>  
   <activation-config-property>
    <activation-config-property-name>destinationType</activation-config-property-name>
    <activation-config-property-value>javax.jms.Queue</activation-config-property-value>
   </activation-config-property>
   <activation-config-property>
    <activation-config-property-name>acknowledgeMode</activation-config-property-name>
    <activation-config-property-value>AUTO_ACKNOWLEDGE</activation-config-property-value>
   </activation-config-property>
  </activation-config>
</message-driven>
</enterprise-beans>

<assembly-descriptor>
</assembly-descriptor>

</ejb-jar>

And jboss.xml looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<jboss xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
            http://www.jboss.org/j2ee/schema/jboss_5_0.xsd"
    version="3.0">

<enterprise-beans>
<session>
  <ejb-name>MyManager</ejb-name>
  <jndi-name>my.ejb_package.MyManager/remote</jndi-name>
  <local-jndi-name>my.ejb_package.MyManager/local</local-jndi-name>
  <clustered>false</clustered>
  <cluster-config>
   <partition-name>${jboss.partition.name:DefaultPartition}</partition-name>
   <load-balance-policy>org.jboss.ha.framework.interfaces.FirstAvailable</load-balance-policy>
  </cluster-config>
</session>

<message-driven>
  <ejb-name>MyMessageReceiver</ejb-name> 
  <destination-jndi-name>queue/my-queue</destination-jndi-name>
  <mdb-user>guest</mdb-user>
  <mdb-passwd>guest</mdb-passwd>
</message-driven>
</enterprise-beans>

<resource-managers>
</resource-managers>

</jboss>

Does anyone know why this happens?
And it'd be great if you can let me know how I can deploy the EJBs properly on JBoss 5.1.0.

Thanks in advance.