_in = zip.openInputStream(this);
if (_in != null) return true;  _in = directory.openInputStream(this);
  public boolean zip_entry_open(Env env, Zip zip)  {    try {      _in = zip.openInputStream(this);      return true;    } catch (IOException e) {      env.warning(L.l(e.toString()));      log.log(Level.FINE,  e.toString(),  e);      return false;    }  }