private void addKeyBindingToRequestFocusInPopUpWindow() {
        textField.getInputMap(JComponent.WHEN_FOCUSED).put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0, true), "Down released");
        textField.getActionMap().put("Down released", new AbstractAction() {
            @Override
            public void actionPerformed(ActionEvent ae) {//focuses the first label on popwindow
                for (int i = 0; i < suggestionsPanel.getComponentCount(); i++) {
                    if (suggestionsPanel.getComponent(i) instanceof SuggestionLabel) {
                        ((SuggestionLabel) suggestionsPanel.getComponent(i)).setFocused(true);
                        autoSuggestionPopUpWindow.toFront();
                        autoSuggestionPopUpWindow.requestFocusInWindow();
                        suggestionsPanel.requestFocusInWindow();
                        suggestionsPanel.getComponent(i).requestFocusInWindow();
                        break;
                    }
                }
            }
        });
        suggestionsPanel.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0, true), "Down released");
        suggestionsPanel.getActionMap().put("Down released", new AbstractAction() {
            int lastFocusableIndex = 0;

            @Override
            public void actionPerformed(ActionEvent ae) {//allows scrolling of labels in pop window (I know very hacky for now :))

                ArrayList<SuggestionLabel> sls = getAddedSuggestionLabels();
                int max = sls.size();

                if (max > 1) {//more than 1 suggestion
                    for (int i = 0; i < max; i++) {
                        SuggestionLabel sl = sls.get(i);
                        if (sl.isFocused()) {
                            if (lastFocusableIndex == max - 1) {
                                lastFocusableIndex = 0;
                                sl.setFocused(false);
                                autoSuggestionPopUpWindow.setVisible(false);
                                setFocusToTextField();
                                checkForAndShowSuggestions();//fire method as if document listener change occured and fired it

                            } else {
                                sl.setFocused(false);
                                lastFocusableIndex = i;
                            }
                        } else if (lastFocusableIndex <= i) {
                            if (i < max) {
                                sl.setFocused(true);
                                autoSuggestionPopUpWindow.toFront();
                                autoSuggestionPopUpWindow.requestFocusInWindow();
                                suggestionsPanel.requestFocusInWindow();
                                suggestionsPanel.getComponent(i).requestFocusInWindow();
                                lastFocusableIndex = i;
                                break;
                            }
                        }
                    }
                } else {//only a single suggestion was given
                    autoSuggestionPopUpWindow.setVisible(false);
                    setFocusToTextField();
                    checkForAndShowSuggestions();//fire method as if document listener change occured and fired it
                }
            }
        });
    }