TurtyBot.java

public class TurtyBot extends ListenerAdapter {
    private static TurtyBot instance;

    static TurtyBot from(final String token) {
        try {
            return new TurtyBot(JDABuilder.createDefault(token).enableIntents(GatewayIntent.GUILD_MEMBERS)
                    .setMemberCachePolicy(MemberCachePolicy.ALL).build());
        } catch (final Exception e) {
            throw new IllegalArgumentException(e);
        }
    }

    public static TurtyBot getOrCreateInstance() {
        final String botToken = BotUtils.getBotToken();
        return instance == null ? TurtyBot.from(botToken) : instance;
    }

    public static void main(final String[] args) {
        TurtyBot.getOrCreateInstance();
    }

    private final JDA bot;

    private TurtyBot(final JDA bot) throws InterruptedException {
        instance = this;
        bot.addEventListener(new CommandHook());
        bot.addEventListener(new HelpManager.HelpEventListener());
        bot.addEventListener(new StarboardManager());
        bot.addEventListener(Constants.LEVELLING_MANAGER);
        bot.addEventListener(this);
        this.bot = bot;

        Logger.getLogger(OkHttpClient.class.getName()).setLevel(Level.FINE);
        bot.awaitReady();
    }

    @Override
    public void onReady(final ReadyEvent event) {
        super.onReady(event);
        System.out.println("bruh?");
        // it never prints 'bruh?'
    }

    public JDA getJDA() {
        ...
    }

    private JsonElement getOrDefaultJson(final JsonObject object, final String name, final Boolean defaultValue) {
        ...
    }

    private JsonElement getOrDefaultJson(final JsonObject object, final String name, final Character defaultValue) {
        ...
    }

    private JsonElement getOrDefaultJson(final JsonObject object, final String name, final JsonElement defaultValue) {
        ...
    }

    private JsonElement getOrDefaultJson(final JsonObject object, final String name, final Number defaultValue) {
        ...
    }

    private JsonElement getOrDefaultJson(final JsonObject object, final String name, final String defaultValue) {
        ...
    }

    private void readGuildInfo() {
        ...
    }

    public void writeGuildInfo() {
        ...
    }
}