listFiles returns an empty array

Hi,
It has happened that SmbFile#listFiles(SmbFileFilter) returns an empty array though there are files and/or folders.
We don't know at this time whether this has caused by file server (hardware) or JCIFS.

I would appreciate it if anyone who has any knowledge about this could tell whether it can be occurred with JCIFS or not.

Note:
- SmbFileFilter#accept always returns true.
- JCIFS 1.3.16

Thanks and Regards,
Hidari