src/share/classes/sun/font/SunLayoutEngine.java

*** 147,162 ****
--- 147,180 ----
  
      private SunLayoutEngine(LayoutEngineKey key) {
          this.key = key;
      }
  
+     private boolean isAAT(Font2D font) {
+         if (font instanceof TrueTypeFont) {
+             TrueTypeFont ttf = (TrueTypeFont)font;
+             return ttf.getDirectoryEntry(TrueTypeFont.morxTag) != null ||
+             ttf.getDirectoryEntry(TrueTypeFont.mortTag) != null;
+         } else if (font instanceof PhysicalFont) {
+             PhysicalFont pf = (PhysicalFont)font;
+             return pf.getTableBytes(TrueTypeFont.morxTag) != null ||
+             pf.getTableBytes(TrueTypeFont.mortTag) != null;
+         }
+         return false;
+     }
+ 
      public void layout(FontStrikeDesc desc, float[] mat, int gmask,
                         int baseIndex, TextRecord tr, int typo_flags,
                         Point2D.Float pt, GVData data) {
          Font2D font = key.font();
          FontStrike strike = font.getStrike(desc);
          long layoutTables = font.getLayoutTableCache();
+         if (isAAT(font) && (typo_flags & 0x80000000) != 0) {
+             // Ignore layout tables for RTL AAT fonts
+             // due to lack of support in ICU
+             layoutTables = 0;
+         }
          nativeLayout(font, strike, mat, gmask, baseIndex,
               tr.text, tr.start, tr.limit, tr.min, tr.max,
               key.script(), key.lang(), typo_flags, pt, data,
               font.getUnitsPerEm(), layoutTables);
      }