public void start(final Environment env) throws IOException {
      Context old = sshScope.set(context);
      String message;
      try {
        message = messageFactory.get().getMessage();
      } finally {
        sshScope.set(old);
      }
      err.write(Constants.encode(message.toString()));
      err.flush();

      in.close();
      out.close();
      err.close();
      exit.onExit(127);
    }
 public void setSession(final ServerSession session) {
   SshSession s = session.getAttribute(SshSession.KEY);
   this.context = sshScope.newContext(schemaFactory, s, "");
 }