--- old/makefiles/docs/CORE_PKGS.gmk	2012-10-31 12:58:52.938001285 -0700
+++ new/makefiles/docs/CORE_PKGS.gmk	2012-10-31 12:58:52.766001278 -0700
@@ -131,6 +131,7 @@
   java.util.concurrent                           \
   java.util.concurrent.atomic                    \
   java.util.concurrent.locks                     \
+  java.util.functions                            \
   java.util.jar                                  \
   java.util.logging                              \
   java.util.prefs                                \