--- jsr166/src/main/java/util/NavigableMap.java	2005/05/16 06:27:52	1.8
+++ jsr166/src/main/java/util/NavigableMap.java	2006/02/07 20:54:24	1.12
@@ -28,8 +28,9 @@ package java.util;
  * subrange traversals in either direction using <tt>navigableSubMap</tt>.
  * Methods <tt>navigableSubMap</tt>, <tt>navigableHeadMap</tt>, and
  * <tt>navigableTailMap</tt> differ from the similarly named
- * <tt>SortedMap</tt> methods only in that the returned maps
- * are guaranteed to obey the <tt>NavigableMap</tt> interface.
+ * <tt>SortedMap</tt> methods only in their declared return types.
+ * Submaps of any <tt>NavigableMap<tt> must implement the
+ * <tt>NavigableMap</tt> interface.
  *
  * <p>This interface additionally defines methods <tt>firstEntry</tt>,
  * <tt>pollFirstEntry</tt>, <tt>lastEntry</tt>, and
@@ -215,8 +216,8 @@ public interface NavigableMap<K,V> exten
      * the iteration are undefined.  The set supports element removal,
      * which removes the corresponding mapping from the map, via the
      * <tt>Iterator.remove</tt>, <tt>Set.remove</tt>,
-     * <tt>removeAll</tt> <tt>retainAll</tt>, and <tt>clear</tt>
-     * operations.  It does not support the add or <tt>addAll</tt>
+     * <tt>removeAll</tt>, <tt>retainAll</tt>, and <tt>clear</tt>
+     * operations.  It does not support the <tt>add</tt> or <tt>addAll</tt>
      * operations.
      *
      * @return a set view of the keys contained in this map, sorted in