src/share/classes/javax/swing/plaf/nimbus/SynthPainterImpl.java

@@ -47,11 +47,11 @@
     /**
      * Paint the provided painter using the provided transform at the specified
      * position and size. Handles if g is a non 2D Graphics by painting via a
      * BufferedImage.
      */
-    private void paint(Painter p, SynthContext ctx, Graphics g, int x, int y,
+    private void paint(Painter<Object> p, SynthContext ctx, Graphics g, int x, int y,
                        int w, int h, AffineTransform transform) {
         if (p != null) {
             if (g instanceof Graphics2D){
                 Graphics2D gfx = (Graphics2D)g;
                 if (transform!=null){

@@ -94,28 +94,29 @@
         // for there being no way of turning off Nimbus background painting as
         // basic components are all non-opaque by default.
         Component c = ctx.getComponent();
         Color bg = (c != null) ? c.getBackground() : null;
         if (bg == null || bg.getAlpha() > 0){
-            Painter backgroundPainter = style.getBackgroundPainter(ctx);
+            
+            Painter<Object> backgroundPainter = style.getBackgroundPainter(ctx);
             if (backgroundPainter != null) {
                 paint(backgroundPainter, ctx, g, x, y, w, h,transform);
             }
         }
     }
 
     private void paintForeground(SynthContext ctx, Graphics g, int x, int y,
                                  int w, int h, AffineTransform transform) {
-        Painter foregroundPainter = style.getForegroundPainter(ctx);
+        Painter<Object> foregroundPainter = style.getForegroundPainter(ctx);
         if (foregroundPainter != null) {
             paint(foregroundPainter, ctx, g, x, y, w, h,transform);
         }
     }
 
     private void paintBorder(SynthContext ctx, Graphics g, int x, int y, int w,
                              int h, AffineTransform transform) {
-        Painter borderPainter = style.getBorderPainter(ctx);
+        Painter<Object> borderPainter = style.getBorderPainter(ctx);
         if (borderPainter != null) {
             paint(borderPainter, ctx, g, x, y, w, h,transform);
         }
     }