The Liberty server cannot load connector modules where the ra.xml deployment descriptor has a namespace value that does not match the defined version. Connector modules at version 1.5 must use the http://java.sun.com/xml/ns/j2ee namespace. Connector modules at version 1.6 must use the http://java.sun.com/xml/ns/javaee namespace. Connector modules at version 1.7 or later must use the http://xmlns.jcp.org/xml/ns/javaee namespace.

This rule has an automated fix to update the namespace value. Copy the custom configuration to your application build file to enable it.