public static void uninject() {
        try {
            Objects.requireNonNull(PERM_SUBS_FIELD, "PERM_SUBS_FIELD");
            PluginManager pluginManager = Server.getInstance().getPluginManager();

            Object map = PERM_SUBS_FIELD.get(pluginManager);
            if (map instanceof LuckPermsSubscriptionMap) {
                LuckPermsSubscriptionMap lpMap = (LuckPermsSubscriptionMap) map;
                PERM_SUBS_FIELD.set(pluginManager, lpMap.detach());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
Injects a {@link LuckPermsSubscriptionMap} into the {@link PluginManager}.
nukkit/src/main/java/me/lucko/luckperms/nukkit/inject/server/InjectorSubscriptionMap.java