public void run()

in log4j-server/src/main/java/org/apache/logging/log4j/server/UdpSocketServer.java [116:150]
31 lines of code
10 McCabe index (conditional complexity)

    public void run() {
        while (isActive()) {
            if (datagramSocket.isClosed()) {
                // OK we're done.
                return;
            }
            try {
                final byte[] buf = new byte[maxBufferSize];
                final DatagramPacket packet = new DatagramPacket(buf, buf.length);
                datagramSocket.receive(packet);
                final ByteArrayInputStream bais = new ByteArrayInputStream(packet.getData(), packet.getOffset(), packet.getLength());
                logEventInput.logEvents(logEventInput.wrapStream(bais), this);
            } catch (final OptionalDataException e) {
                if (datagramSocket.isClosed()) {
                    // OK we're done.
                    return;
                }
                logger.error("OptionalDataException eof=" + e.eof + " length=" + e.length, e);
            } catch (final EOFException e) {
                if (datagramSocket.isClosed()) {
                    // OK we're done.
                    return;
                }
                logger.info("EOF encountered");
            } catch (final IOException e) {
                if (datagramSocket.isClosed()) {
                    // OK we're done.
                    return;
                }
                logger.error("Exception encountered on accept. Ignoring. Stack Trace :", e);
            } catch (ParseException e) {
                logger.error("Unable to parse log event", e);
            }
        }
    }