@Override
    public void render(RenderManager rm) {
        super.render(rm);
        rm.getRenderer().getStatistics().clearFrame();        
    }
Resets (clearFrame()) the render's stats object every frame
 during AppState.render().  This state is registered once
 with Application to ensure that the stats are cleared once
 a frame.  Using this makes sure that any Application-based
 application that properly runs its state manager will have
 stats reset no matter how many views it has or if it even
 has views.

 @author    Paul Speed
jme3-core/src/main/java/com/jme3/app/ResetStatsState.java