Stroking or Filling with a Texture
The buffered image used to create the TexturePaint object is scaled down/up to width w and height h. Conceptually, the scaled down/up buffered image is first painted at (x, y) in user space, and then replicated around it. 

 TexturePaint texture = new TexturePaint(
   bufferedImage, 
   new Rectangle(x, y, 50/*w*/, 25/*h*/));
 g2d.setPaint(texture);
 drawShape(g2d);