/**
     * @param ctx
     * @return session
     */
    SmbSession getSmbSession ( CIFSContext ctx );


    /**
     * @param tf
     * @param targetHost
     * @param targetDomain
     * @return session
     */
    SmbSession getSmbSession ( CIFSContext tf, String targetHost, String targetDomain );


    /**
     * @return whether this is a SMB2 connection

                .unwrap(SmbTransportInternal.class);
              SmbSession sess = trans.unwrap(SmbTransportInternal.class).getSmbSession(c, getTestServer(), null);
              SmbTreeInternal tree = sess.unwrap(SmbSessionInternal.class).getSmbTree(getTestShare(), null).unwrap(SmbTreeInternal.class) ) {

            if ( trans.isSMB2() ) {