@Override
    public void setInputListener(RawInputListener listener) {
        this.listener = listener;
        if (listener != null && Mouse.isCreated()) {
            sendFirstMouseEvent();
        }
    }
We need to cache the cursors
(https://github.com/jMonkeyEngine/jmonkeyengine/issues/537)
jme3-lwjgl/src/main/java/com/jme3/input/lwjgl/LwjglMouseInput.java