[Spacewalk-list] Could not initialize class com.redhat.rhn.domain.user.UserFactory

[genanr]

SEVERE: Servlet.service() for servlet [XMLRPC] in context with path 
[/rhn] threw exception [Filter execution threw an exception] with root 
cause
java.lang.NoClassDefFoundError: Could not initialize class 
com.redhat.rhn.domain.user.UserFactory

I am using the git version of spacewalk and am getting this error. The 
rhn jar does contain this class, so I do not know what the problem is.  
Any ideas?

Thanks,

Andy