[jcifs] jcifs.smb.SmbException: A duplicate name exists on the network

[Coppens Benoît (All4IT)]

Hi,
 
I'm using jcifs (1.2.21) for NTLM authentication. Up to now I was using jcifs.netbios.wins to configure the filter.
Our Active Directory team asked me to switch to jcifs.http.domainController and to set its value to a hostname.
 
Since that change I got sometimes a "jcifs.smb.SmbException: A duplicate name exists on the network" exception.
 
FYI, when I display the content of my DNS Resolver Cache, I can see that the hostname set for jcifs.http.domainController corresponds to multiple ip addresses:
 
***********
hostname.com
----------------------------------------
Record Name . . . . . : hostname.com
Record Type . . . . . : 1
Time To Live  . . . . : 3595
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 10.1.39.12
 

Record Name . . . . . : hostname.com
Record Type . . . . . : 1
Time To Live  . . . . : 3595
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 10.1.253.2
 

Record Name . . . . . : hostname.com
Record Type . . . . . : 1
Time To Live  . . . . : 3595
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 10.1.249.3
***********
 
Is it a normal behaviour of jcifs?
How is it possible to avoid this exception?
Should I use one of the proposed solution ( http://article.gmane.org/gmane.network.samba.java/6446 <http://article.gmane.org/gmane.network.samba.java/6446>  or http://article.gmane.org/gmane.network.samba.java/4990 <http://article.gmane.org/gmane.network.samba.java/4990>  ) ?
If yes, are these changes compatible with my version of JCIFS (1.2.21)?
 
Thanks a lot,
Benoit

Benoit Coppens • Senior Consultant
UCB <http://www.ucb-group.com/>  - IT Global Medical Information
Chemin du Foriest - 1420 Braine-l'Alleud - Belgium •  (  +32 2 386 25 71 •  7  +32 2 386 32 44 •  *   benoit.coppens at ucb-group.com
All4IT <http://www.all4it.com/> 
Drève Richelle 161 - 1410 Waterloo - Belgium •  (  +32 2 609 51 20 •  7  +32 2 609 51 38 •  *  bcoppens at all4it.com
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