question: return server connection status concode_field_sep Proxy proxy concode_elem_sep int DEFAULT_CONNECT_TIMEOUT concode_elem_sep int connectTimeout concode_elem_sep int DEFAULT_READ_TIMEOUT concode_elem_sep InputStream serverInput concode_elem_sep int defaultSoTimeout concode_elem_sep int defaultConnectTimeout concode_elem_sep Socket serverSocket concode_elem_sep int readTimeout concode_elem_sep String encoding concode_elem_sep PrintStream serverOutput concode_field_sep void setReadTimeout concode_elem_sep Socket createSocket concode_elem_sep void setConnectTimeout concode_elem_sep boolean isASCIISuperset concode_elem_sep Socket doConnect concode_elem_sep void closeServer concode_elem_sep int getReadTimeout concode_elem_sep Void run concode_elem_sep int getConnectTimeout concode_elem_sep void openServer concode_elem_sep InetAddress getLocalAddress
target: boolean function ( ) { return serverSocket != null ; }