private void postPlugin(final boolean isPing) throws IOException {
        // Server software specific section
        PluginDescriptionFile description = plugin.getDescription();
        String pluginName = description.getName();
        boolean onlineMode = Bukkit.getServer().getOnlineMode(); // TRUE if online mode is enabled
        String pluginVersion = description.getVersion();
        String serverVersion = Bukkit.getVersion();
        int playersOnline = Bukkit.getServer().getOnlinePlayers().length;

        // END server software specific section -- all code below does not use any code outside of this class / Java

        // Construct the post data
        final StringBuilder data = new StringBuilder();

        // The plugin's description file containg all of the plugin data such as name, version, author, etc
        data.append(encode("guid")).append('=').append(encode(guid));
        encodeDataPair(data, "version", pluginVersion);
        encodeDataPair(data, "server", serverVersion);
        encodeDataPair(data, "players", Integer.toString(playersOnline));
        encodeDataPair(data, "revision", String.valueOf(REVISION));

        // New data as of R6
        String osname = System.getProperty("os.name");
        String osarch = System.getProperty("os.arch");
        String osversion = System.getProperty("os.version");
        String java_version = System.getProperty("java.version");
        int coreCount = Runtime.getRuntime().availableProcessors();

        // normalize os arch .. amd64 -> x86_64
        if (osarch.equals("amd64")) {
            osarch = "x86_64";
        }

        encodeDataPair(data, "osname", osname);
        encodeDataPair(data, "osarch", osarch);
        encodeDataPair(data, "osversion", osversion);
        encodeDataPair(data, "cores", Integer.toString(coreCount));
        encodeDataPair(data, "online-mode", Boolean.toString(onlineMode));
        encodeDataPair(data, "java_version", java_version);

        // If we're pinging, append it
        if (isPing) {
            encodeDataPair(data, "ping", "true");
        }

        // Acquire a lock on the graphs, which lets us make the assumption we also lock everything
        // inside of the graph (e.g plotters)
        synchronized (graphs) {
            final Iterator<Graph> iter = graphs.iterator();

            while (iter.hasNext()) {
                final Graph graph = iter.next();

                for (Plotter plotter : graph.getPlotters()) {
                    // The key name to send to the metrics server
                    // The format is C-GRAPHNAME-PLOTTERNAME where separator - is defined at the top
                    // Legacy (R4) submitters use the format Custom%s, or CustomPLOTTERNAME
                    final String key = String.format("C%s%s%s%s", CUSTOM_DATA_SEPARATOR, graph.getName(), CUSTOM_DATA_SEPARATOR, plotter.getColumnName());

                    // The value to send, which for the foreseeable future is just the string
                    // value of plotter.getValue()
                    final String value = Integer.toString(plotter.getValue());

                    // Add it to the http post data :)
                    encodeDataPair(data, key, value);
                }
            }
        }

        // Create the url
        URL url = new URL(BASE_URL + String.format(REPORT_URL, encode(pluginName)));

        // Connect to the website
        URLConnection connection;

        // Mineshafter creates a socks proxy, so we can safely bypass it
        // It does not reroute POST requests so we need to go around it
        if (isMineshafterPresent()) {
            connection = url.openConnection(Proxy.NO_PROXY);
        } else {
            connection = url.openConnection();
        }

        connection.setDoOutput(true);

        // Write the data
        final OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
        writer.write(data.toString());
        writer.flush();

        // Now read the response
        final BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        final String response = reader.readLine();

        // close resources
        writer.close();
        reader.close();

        if (response == null || response.startsWith("ERR")) {
            throw new IOException(response); //Throw the exception
        } else {
            // Is this the first update this hour?
            if (response.contains("OK This is your first update this hour")) {
                synchronized (graphs) {
                    final Iterator<Graph> iter = graphs.iterator();

                    while (iter.hasNext()) {
                        final Graph graph = iter.next();

                        for (Plotter plotter : graph.getPlotters()) {
                            plotter.reset();
                        }
                    }
                }
            }
        }
    }