[jcifs] NPE in SmbFile.listFiles with 1.2.18

[Michael B Allen]

This is a bug. The server has so many shares it is sending a
multi-fragment response which for some reason JCIFS seems to be having
a problem with. I'll try to get this fixed for the next release.

On Wed, 5 Mar 2008 09:42:37 -0500
"Patrick Madden" <PatrickMadden at clooster.com> wrote:

> Hi Michael,
> 
> Thanks for your help and sorry for late response on this.
> 
> I set it to log level three and just copied the ListFiles.java into my
> unit test package for jcifs
> 
> Here is the output from the log:
> doConnect: Clooster.local/10.10.10.2
> doConnect: 0.0.0.0<00>/10.10.10.2
> open0: \srvsvc
> close: 49219
> Exception in thread "main" java.lang.NullPointerException
> 	at jcifs.smb.SmbShareInfo.hashCode(SmbShareInfo.java:64)
> 	at java.util.HashMap.getEntry(Unknown Source)
> 	at java.util.HashMap.containsKey(Unknown Source)
> 	at jcifs.smb.SmbFile.doShareEnum(SmbFile.java:1697)
> 	at jcifs.smb.SmbFile.doEnum(SmbFile.java:1652)
> 	at jcifs.smb.SmbFile.listFiles(SmbFile.java:1631)
> 	at jcifs.smb.SmbFile.listFiles(SmbFile.java:1564)
> 	at com.clooster.jcifs.ListFiles.main(ListFiles.java:53)
> 
> Also, I'm attaching a pcap file of the wireshark capture during the run
> using a filter of port 137 || 138 || 139 || 445. Let me know if this is
> not the correct format and I'll resend quickly this time.
> 
> My Windows 2003 Server is IP 10.10.10.2 and my Client Machine is
> 10.10.10.114
> 
> Thanks in advance!
> 
> PVM
> 
> -----Original Message-----
> From: Michael B Allen [mailto:miallen at ioplex.com] 
> Sent: Tuesday, March 04, 2008 12:08 PM
> To: Patrick Madden
> Cc: jcifs at lists.samba.org
> Subject: Re: [jcifs] NPE in SmbFile.listFiles with 1.2.18
> 
> On Tue, 4 Mar 2008 10:30:33 -0500
> "Patrick Madden" <PatrickMadden at clooster.com> wrote:
> 
> > Hi, 
> > 
> > I just upgraded my code to jcifs 1.2.18 from 1.2.17 and was running
> > through some unit test code and ran into some issues.
> > 
> > For example the SmbFile.listFiles() method throws a NPE when trying to
> > use the DFS capabilities explained on the jcifs home page
> > 
> > Assume I have a valid NTLMAuthentication instance when I call the
> > following code:
> > 
> > SmbFile smbHost = new SmbFile("smb://foo.local/", ntlmAuth);
> > 
> > SmbFile[] allShares = smbHost.listFiles();
> > 
> > java.lang.NullPointerException
> > 	at jcifs.smb.SmbShareInfo.hashCode(SmbShareInfo.java:64)
> > 	at java.util.HashMap.getEntry(Unknown Source)
> > 	at java.util.HashMap.containsKey(Unknown Source)
> > 	at jcifs.smb.SmbFile.doShareEnum(SmbFile.java:1697)
> > 	at jcifs.smb.SmbFile.doEnum(SmbFile.java:1652)
> > 	at jcifs.smb.SmbFile.listFiles(SmbFile.java:1631)
> > 	at jcifs.smb.SmbFile.listFiles(SmbFile.java:1564)
> > 	at
> > com.clooster.jcifs.SmbFileTest.listShares(SmbFileTest.java:140)
> > 	at com.clooster.jcifs.SmbFileTest.testDFS(SmbFileTest.java:75)
> > 	at com.clooster.jcifs.SmbFileTest.main(SmbFileTest.java:159)
> > 
> > The value of netname in the SmbShareInfo is null.
> > 
> > Anyone have any ideas?
> 
> Hi Patrick,
> 
> I don't see how netName can be null unless some kind of fundamental
> error is going on under the hood.
> 
> Please send the log of examples/ListFiles.java with
> jcifs.util.loglevel=3.
> 
> Also a capture would be great [1].
> 
> Mike
> 
> [1] http://jcifs.samba.org/capture.html
> 
> -- 
> Michael B Allen
> PHP Active Directory SPNEGO SSO
> http://www.ioplex.com/
> 


-- 
Michael B Allen
PHP Active Directory SPNEGO SSO
http://www.ioplex.com/