Match #1:
/JHotDraw 7.0.6/src/org/jhotdraw/draw/action/LineDecorationIcon.java: line 54-56
/java/11193155-11193230-1: line 3-7
//Drawing Smooth Curves in Java Graphics. Use the Graphics2D with the antialising.
<        Graphics2D g = (Graphics2D) gr;
<        g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
<        lineFigure.draw(g);
---
>Graphics2D g2 = (Graphics2D)g;
> g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
>     RenderingHints.VALUE_ANTIALIAS_ON);
> //...
> g2.draw(gp);