--- old/src/share/classes/java/lang/Character.java 2009-07-09 12:29:50.000000000 -0700
+++ new/src/share/classes/java/lang/Character.java 2009-07-09 12:29:50.000000000 -0700
@@ -2571,6 +2571,10 @@
* significantly better space and time performance by caching
* frequently requested values.
*
+ * This method will always cache values in the range '\u0000'
+ * to '\u007f'", inclusive, and may cache other values outside
+ * of this range.
+ *
* @param c a char value.
* @return a Character instance representing c.
* @since 1.5