--- old/src/java.base/share/classes/java/util/regex/PatternSyntaxException.java	2015-08-07 21:15:28.858583580 +0400
+++ new/src/java.base/share/classes/java/util/regex/PatternSyntaxException.java	2015-08-07 21:15:28.654583590 +0400
@@ -57,7 +57,7 @@
      *
      * @param  index
      *         The approximate index in the pattern of the error,
-     *         or <tt>-1</tt> if the index is not known
+     *         or {@code -1} if the index is not known
      */
     public PatternSyntaxException(String desc, String regex, int index) {
         this.desc = desc;
@@ -69,7 +69,7 @@
      * Retrieves the error index.
      *
      * @return  The approximate index in the pattern of the error,
-     *         or <tt>-1</tt> if the index is not known
+     *         or {@code -1} if the index is not known
      */
     public int getIndex() {
         return index;