assertNotNull(userEntry);
IsMemberOfVirtualAttributeProvider provider =
new IsMemberOfVirtualAttributeProvider();
VirtualAttributeRule rule =
new VirtualAttributeRule(isMemberOfType, provider,
Collections.<DN>emptySet(), Collections.<DN>emptySet(),
Collections.<SearchFilter>emptySet(),
VirtualAttributeCfgDefn.ConflictBehavior.
VIRTUAL_OVERRIDES_REAL);