public void run () {

                try {
                    synchronized ( lock ) {
                        lock.wait(1000);
                    }

                    Thread.sleep(100);
                    t.interrupt();
                }
                catch ( InterruptedException e ) {
                    e.printStackTrace();
                }
            }
        });

        try ( SmbFile f = getDefaultShareRoot() ) {
            checkConnection(f);
            while ( true ) {
                f.list();
                Thread.sleep(5000);
            }

        }
    }