DelexeHub

public void run() {
   Bukkit.getScheduler()
      .runTaskAsynchronously(
         UpdateChecker.this.plugin,
         () -> {
            try {
               HttpsURLConnection connection = (HttpsURLConnection)new URL("https://api.spigotmc.org/legacy/update.php?resource=49425")
                  .openConnection();
               connection.setRequestMethod("GET");
               UpdateChecker.this.spigotPluginVersion = new BufferedReader(new InputStreamReader(connection.getInputStream())).readLine();
            } catch (IOException e) {
               e.printStackTrace();
               this.cancel();
               return;
            }

            if (!UpdateChecker.this.localPluginVersion.equals(UpdateChecker.this.spigotPluginVersion)) {
               UpdateChecker.this.plugin
                  .getLogger()
                  .info("An update for DeluxeHub (v%VERSION%) is available at:".replace("%VERSION%", UpdateChecker.this.spigotPluginVersion));
               UpdateChecker.this.plugin.getLogger().info("https://www.spigotmc.org/resources/49425");
               Bukkit.getScheduler()
                  .runTask(
                     UpdateChecker.this.plugin,
...

protected static void checkForUpdates() throws Exception {
   URL url = new URL("https://api.spiget.org/v2/resources/7939/versions?size=100");
   HttpURLConnection connection = (HttpURLConnection)url.openConnection();
   connection.addRequestProperty("User-Agent", "nbt-api Version check");
   InputStream inputStream = connection.getInputStream();
   InputStreamReader reader = new InputStreamReader(inputStream);
   JsonElement element = new JsonParser().parse(reader);
   if (element.isJsonArray()) {
      JsonArray updates = (JsonArray)element;
      JsonObject latest = (JsonObject)updates.get(updates.size() - 1);
      int versionDifference = getVersionDifference(latest.get("name").getAsString());
      if (versionDifference == -1) {
         MinecraftVersion.getLogger().log(Level.WARNING, "[NBTAPI] The NBT-API located at '" + NBTItem.class.getPackage() + "' seems to be outdated!");
         MinecraftVersion.getLogger().log(Level.WARNING, "[NBTAPI] Current Version: '2.9.2' Newest Version: " + latest.get("name").getAsString() + "'");
         MinecraftVersion.getLogger()
            .log(
               Level.WARNING,
               "[NBTAPI] Please update the NBTAPI or the plugin that contains the api(nag the mod author when the newest release has an old version, not the NBTAPI dev)!"
            );
      } else if (versionDifference == 0) {
         if (!hideOk) {
            MinecraftVersion.getLogger().log(Level.INFO, "[NBTAPI] The NBT-API seems to be up-to-date!");
         }
      } else if (versionDifference == 1) {
...

private void submitData() {
   JsonObject data = this.getServerData();
   JsonArray pluginData = new JsonArray();

   for (Class<?> service : Bukkit.getServicesManager().getKnownServices()) {
      try {
         service.getField("B_STATS_VERSION");

         for (RegisteredServiceProvider<?> provider : Bukkit.getServicesManager().getRegistrations(service)) {
            try {
               Object plugin = provider.getService().getMethod("getPluginData").invoke(provider.getProvider());
               if (plugin instanceof JsonObject) {
                  pluginData.add((JsonObject)plugin);
               } else {
                  try {
                     Class<?> jsonObjectJsonSimple = Class.forName("org.json.simple.JSONObject");
                     if (plugin.getClass().isAssignableFrom(jsonObjectJsonSimple)) {
                        Method jsonStringGetter = jsonObjectJsonSimple.getDeclaredMethod("toJSONString");
                        jsonStringGetter.setAccessible(true);
                        String jsonString = (String)jsonStringGetter.invoke(plugin);
                        JsonObject object = new JsonParser().parse(jsonString).getAsJsonObject();
                        pluginData.add(object);
                     }
...

...
if (data == null) {
   throw new IllegalArgumentException("Data cannot be null!");
}

if (Bukkit.isPrimaryThread()) {
   throw new IllegalAccessException("This method must not be called from the main thread!");
}

if (logSentData) {
   plugin.getLogger().info("Sending data to bStats: " + data);
}

HttpsURLConnection connection = (HttpsURLConnection)new URL("https://bStats.org/submitData/bukkit").openConnection();
byte[] compressedData = compress(data.toString());
connection.setRequestMethod("POST");
connection.addRequestProperty("Accept", "application/json");
connection.addRequestProperty("Connection", "close");
connection.addRequestProperty("Content-Encoding", "gzip");
connection.addRequestProperty("Content-Length", String.valueOf(compressedData.length));
connection.setRequestProperty("Content-Type", "application/json");
connection.setRequestProperty("User-Agent", "MC-Server/1");
connection.setDoOutput(true);

try (DataOutputStream outputStream = new DataOutputStream(connection.getOutputStream())) {
...

public void run() {
   if (!ApiMetricsLite.this.plugin.isEnabled()) {
      timer.cancel();
   } else {
      Bukkit.getScheduler().runTask(ApiMetricsLite.this.plugin, () -> ApiMetricsLite.this.submitData());
   }
}