ContentHandlerDatagramPacketDatagramSocketDatagramSocketImplHttpURLConnectionInetAddressMulticastSocketServerSocketSocketSocketImplURLURLConnectionURLEncoderURLStreamHandlerContentHandlerFactoryFileNameMapSocketImplFactoryURLStreamHandlerFactoryBindExceptionConnectExceptionMalformedURLExceptionNoRouteToHostExceptionProtocolExceptionSocketExceptionUnknownHostExceptionUnknownServiceException