Main.java

root.setOnScroll((ScrollEvent event) -> {
            Task task = new Task() {
                @Override protected Void call() throws Exception {
                    Platform.runLater(()->{
                        System.out.println(index);
                        if(event.getDeltaY()==-40.0){
                            index ++;
                            int cachedSize = addons.size();
                            for(Addon adn:CurseAPIWrapper.searchAddons("", GameVersion.STABLE, Section.MODS, 1, index))
                                addons.add(adn);
                            for (int ii = cachedSize; ii < addons.size(); ii++) {
                                myGroup.getChildren().add(new AddonView(ii, size, addons));
                            }
                        }
                    });
                    return null;
                }
            };
            Thread th = new Thread(task);
            th.setDaemon(true);
            th.start();
        });