modules/graphics/src/main/java/com/sun/javafx/font/PrismFontLoader.java

*** 222,232 ****
              float xheight = metrics.getXHeight();
              float descent = metrics.getDescent();
              // TODO: what's the difference between descent and maxDescent?
              float maxDescent = metrics.getDescent();//metrics.getMaxDescent();
              float leading = metrics.getLineGap();
!             return FontMetrics.impl_createFontMetrics(maxAscent, ascent, xheight, descent, maxDescent, leading, font);
          } else {
              return null; // this should never happen
          }
      }
  
--- 222,232 ----
              float xheight = metrics.getXHeight();
              float descent = metrics.getDescent();
              // TODO: what's the difference between descent and maxDescent?
              float maxDescent = metrics.getDescent();//metrics.getMaxDescent();
              float leading = metrics.getLineGap();
!             return FontMetrics.createFontMetrics(maxAscent, ascent, xheight, descent, maxDescent, leading, font);
          } else {
              return null; // this should never happen
          }
      }