src/share/classes/com/sun/java/swing/plaf/windows/WindowsTableHeaderUI.java

*** 89,101 ****
              this.isSelected = isSelected;
              this.hasFocus = hasFocus;
              this.column = column;
              this.hasRollover = (column == getRolloverColumn());
              if (skin == null) {
!                 skin = XPStyle.getXP().getSkin(header, Part.HP_HEADERITEM);
              }
!             Insets margins = skin.getContentMargin();
              Border border = null;
              int contentTop = 0;
              int contentLeft = 0;
              int contentBottom = 0;
              int contentRight = 0;
--- 89,102 ----
              this.isSelected = isSelected;
              this.hasFocus = hasFocus;
              this.column = column;
              this.hasRollover = (column == getRolloverColumn());
              if (skin == null) {
!                 XPStyle xp = XPStyle.getXP();
!                 skin = (xp != null) ? xp.getSkin(header, Part.HP_HEADERITEM) : null;
              }
!             Insets margins = (skin != null) ? skin.getContentMargin() : null;
              Border border = null;
              int contentTop = 0;
              int contentLeft = 0;
              int contentBottom = 0;
              int contentRight = 0;