I am seeing this when I try to login with CAS which is authenticating against AD over LDAP.
SEVERE: Servlet.service() for servlet cas threw exception
jav
Remaining name is a part of a DN that wasn't actually found at a certain level of a DIT. For example when you search cn=johns,ou=marketing,dc=example,dc=com
and ou=marketing,dc=example,dc=com
exists but cn=johns
does not exists inside of ou=marketing
then the remaning name would be cn=johns
.
'/' does not look like a valid RDN. I would recommend to verify what you pass as a search base. Most likely it's an invalid DN string.
LDAP error code 32 means "no such object", in this case, perhaps the base object of the search did not exist.