[ldap] LDAP Error 32 v/s Empty Result Set

[Agarwal, Sharad]

Hi All,

Is it standard behavior for an LDAP server to respond with (LDAP Error
32) when a query is run that has no match?

I tried a zero result query with the embedded LDAP Server (that comes
with WebLogic). This query does not return LDAP Error 32, it just
returns an empty result set.

Code snippet:
~~~~
        int ldapVersion   = LDAPConnection.LDAP_V3;
        int ldapPort      = 27001; 
        String ldapHost   = "fesbosbgdd33v3";
        String loginDN    =
"uid=vgnadmin,ou=people,ou=VgnLDAPRealm,dc=vgndomain";
        String password   = "password masked";
        String searchBase = "ou=groups,ou=VgnLDAPRealm,dc=vgndomain";
        String searchFilter =
"(&(uniquemember=cn=Administrators,ou=groups,ou=VgnLDAPRealm,dc=vgndomai
n)(objectclass=groupOfUniqueNames))";
~~~~

Code output:
~~~~
searchResults.getCount() = 0
~~~~

The same kind of query against another LDAP interface (Oracle Virtual
Directory) returns LDAP Error 32. 
~~~~
searchResults.getCount() = 0
Error: LDAPException: No Such Object (32) No Such Object
LDAPException: Server Message: LDAP Error 32 : No Such Object
LDAPException: Matched DN: 
~~~~
 
I tried all kinds of queries (valid, invalid, meaningless) against the
embedded LDAP, and each succeeded with either no result or the correct
result.

Please advise,
Sharad