code: private boolean sendEmulatorCommand(
              //final Launcher launcher,
              //final PrintStream logger,
              final int port, final String command )
      {
          Callable<Boolean> task = new Callable<Boolean>()
          {
              public Boolean call() throws IOException
              {
                  Socket socket = null;
                  BufferedReader in = null;
                  PrintWriter out = null;
                  try
                  {
                      socket = new Socket( "127.0.0.1", port );
                      out = new PrintWriter( socket.getOutputStream(), true );
                      in = new BufferedReader( new InputStreamReader( socket.getInputStream() ) );
                      if ( in.readLine() == null )
                      {
                          return false;
                      }
  
                      out.write( command );
                      out.write( "\r\n" );
                  }
                  finally
                  {
                      try
                      {
                          out.close();
                          in.close();
                          socket.close();
                      }
                      catch ( Exception e )
                      {
                          // Do nothing
                      }
                  }
  
                  return true;
              }
  
              private static final long serialVersionUID = 1L;
          };
  
          boolean result = false;
          try
          {
              ExecutorService executor = Executors.newSingleThreadExecutor();
              Future<Boolean> future = executor.submit( task );
              result = future.get();
          }
          catch ( Exception e )
          {
              getLog().error( String.format( "Failed to execute emulator command '%s': %s", command, e ) );
          }
  
          return result;
      }
docs: Sends a user command to the running emulator via its telnet interface.
  
  @param port    The emulator's telnet port.
  @param command The command to execute on the emulator's telnet interface.
  @return Whether sending the command succeeded.