src/java.desktop/share/classes/javax/swing/text/GlyphPainter1.java

*** 57,67 ****
      public float getSpan(GlyphView v, int p0, int p1,
                           TabExpander e, float x) {
          sync(v);
          Segment text = v.getText(p0, p1);
          int[] justificationData = getJustificationData(v);
!         int width = Utilities.getTabbedTextWidth(v, text, metrics, (int) x, e, p0,
                                                   justificationData);
          SegmentCache.releaseSharedSegment(text);
          return width;
      }
  
--- 57,68 ----
      public float getSpan(GlyphView v, int p0, int p1,
                           TabExpander e, float x) {
          sync(v);
          Segment text = v.getText(p0, p1);
          int[] justificationData = getJustificationData(v);       
!                              
!         float width = Utilities.getTabbedTextWidth(v, text, metrics, x, e, p0,
                                                   justificationData);
          SegmentCache.releaseSharedSegment(text);
          return width;
      }
  
*** 220,233 ****
      }
  
      @SuppressWarnings("deprecation")
      void sync(GlyphView v) {
          Font f = v.getFont();
!         if ((metrics == null) || (! f.equals(metrics.getFont()))) {
!             // fetch a new FontMetrics
              Container c = v.getContainer();
!             metrics = (c != null) ? c.getFontMetrics(f) :
                  Toolkit.getDefaultToolkit().getFontMetrics(f);
          }
      }
  
  
--- 221,239 ----
      }
  
      @SuppressWarnings("deprecation")
      void sync(GlyphView v) {
          Font f = v.getFont();
!         FontMetrics fm = null;
          Container c = v.getContainer();
!         if (c != null) {
!             fm = c.getFontMetrics(f);
!         }
!         if ((metrics == null) || (! f.equals(metrics.getFont()))
!                 || (! metrics.equals(fm))) {
!             // fetch a new FontMetrics
!             metrics = (c != null) ? fm :
                  Toolkit.getDefaultToolkit().getFontMetrics(f);
          }
      }