@Override
    public void setCursorVisible(boolean visible){
        cursorVisible = visible;
        if (!context.isRenderable())
            return;

        Mouse.setGrabbed(!visible);
    }
We need to cache the cursors
(https://github.com/jMonkeyEngine/jmonkeyengine/issues/537)
jme3-lwjgl/src/main/java/com/jme3/input/lwjgl/LwjglMouseInput.java