src/java.desktop/share/classes/javax/swing/plaf/basic/BasicButtonListener.java

*** 73,83 ****
          }
          else if(prop == AbstractButton.CONTENT_AREA_FILLED_CHANGED_PROPERTY) {
              checkOpacity((AbstractButton) e.getSource() );
          }
          else if(prop == AbstractButton.TEXT_CHANGED_PROPERTY ||
!                 "font" == prop || "foreground" == prop) {
              AbstractButton b = (AbstractButton) e.getSource();
              BasicHTML.updateRenderer(b, b.getText());
          }
      }
  
--- 73,84 ----
          }
          else if(prop == AbstractButton.CONTENT_AREA_FILLED_CHANGED_PROPERTY) {
              checkOpacity((AbstractButton) e.getSource() );
          }
          else if(prop == AbstractButton.TEXT_CHANGED_PROPERTY ||
!                 "font" == prop || "foreground" == prop ||
!                 "ancestor" == prop || "graphicsConfig" == prop) {
              AbstractButton b = (AbstractButton) e.getSource();
              BasicHTML.updateRenderer(b, b.getText());
          }
      }