public static void drop ( HttpExchange req ) throws IOException { setStandardHeaders ( req ) ; req . sendResponseHeaders ( 418 , 0 ) ; try ( OutputStream body = req . getResponseBody ( ) ) { body . write ( ( "apdu4j/" + SCTool . getVersion ( ) ) . getBytes ( StandardCharsets . UTF_8 ) ) ; } }
Everything that is not 200 is considered as bad request .