There are a lot of SMB devices in the world.
Some of them only work with the old jcifs library.
If you want to support many SMB devices, CodeLibs jcifs library will be helpful.
For example, since [Fess](https://github.com/codelibs/fess) needs to support many SMB devices, it uses this library.

              SmbTreeHandleInternal th2 = (SmbTreeHandleInternal) ( (SmbFile) f2 ).getTreeHandle();
              SmbSessionInternal sess1 = th1.getSession().unwrap(SmbSessionInternal.class);
              SmbSessionInternal sess2 = th2.getSession().unwrap(SmbSessionInternal.class);
              SmbTransport t1 = sess1.getTransport();
              SmbTransport t2 = sess2.getTransport() ) {

            Assert.assertEquals(t1, t2);
        }