Slow file listing with jCIFS on Windows

Using new SmbFile("username:password@server/") works, so I'm just using that.

Try Using below codes before any jCIFS classes are instantiated:

jcifs.Config.setProperty("resolveOrder", "DNS");

Thanks to Glenn's answer in JCIFS: file retrieval is too slow to be usable

Ref: https://jcifs.samba.org/src/docs/api/overview-summary.html