nfd.setNativeFD(socket(stream));
nfd.setNativeFD(VmChannel.socket(stream));
  public void initSocket(boolean stream) throws IOException  {    if (nfd.isValid())      throw new IOException("native FD already initialized");    if (stream)      kind = Kind.SOCK_STREAM;    else      kind = Kind.SOCK_DGRAM;    nfd.setNativeFD(socket(stream));  }