public Builder withTcpKeepAlive(boolean tcpKeepAlive){
  properties.setProperty(NettyOptions.TCP_KEEP_ALIVE,String.valueOf(tcpKeepAlive));
  return this;
}

public Builder withTcpKeepAlive ( boolean tcpKeepAlive ) { properties . setProperty ( NettyOptions . TCP_KEEP_ALIVE , String . valueOf ( tcpKeepAlive ) ) ; return this ; }
sets the so_keepalive option .
