--- a/jdk/src/java.base/share/classes/java/util/concurrent/TimeUnit.java	Thu Feb 05 14:48:57 2015 +0300
+++ b/jdk/src/java.base/share/classes/java/util/concurrent/TimeUnit.java	Thu Feb 05 12:59:01 2015 +0100
@@ -131,6 +131,7 @@
 
     /**
      * Time unit representing sixty seconds
+     * @since 1.6
      */
     MINUTES {
         public long toNanos(long d)   { return x(d, C4/C0, MAX/(C4/C0)); }
@@ -146,6 +147,7 @@
 
     /**
      * Time unit representing sixty minutes
+     * @since 1.6
      */
     HOURS {
         public long toNanos(long d)   { return x(d, C5/C0, MAX/(C5/C0)); }
@@ -161,6 +163,7 @@
 
     /**
      * Time unit representing twenty four hours
+     * @since 1.6
      */
     DAYS {
         public long toNanos(long d)   { return x(d, C6/C0, MAX/(C6/C0)); }