diff --git a/src/as/com/threerings/util/HashMap.as b/src/as/com/threerings/util/HashMap.as
index b4890fadc..636d4a51d 100644
--- a/src/as/com/threerings/util/HashMap.as
+++ b/src/as/com/threerings/util/HashMap.as
@@ -216,7 +216,7 @@ public class HashMap
     public function keys () :Array
     {
         var keys :Array = [];
-        forEach(function (k :*, v :*) :void {
+        forEach0(function (k :*, v :*) :void {
             keys.push(k);
         });
         return keys;
@@ -226,7 +226,7 @@ public class HashMap
     public function values () :Array
     {
         var vals :Array = [];
-        forEach(function (k :*, v :*) :void {
+        forEach0(function (k :*, v :*) :void {
             vals.push(v);
         });
         return vals;
@@ -234,6 +234,15 @@ public class HashMap
 
     /** @inheritDoc */
     public function forEach (fn :Function) :void
+    {
+        forEach0(fn);
+    }
+
+    /**
+     * Internal forEach.
+     * @private
+     */
+    protected function forEach0 (fn :Function) :void
     {
         if (_simpleData != null) {
             for (var key :Object in _simpleData) {
diff --git a/src/as/com/threerings/util/SortedHashMap.as b/src/as/com/threerings/util/SortedHashMap.as
index 4e41f5eeb..df8746706 100644
--- a/src/as/com/threerings/util/SortedHashMap.as
+++ b/src/as/com/threerings/util/SortedHashMap.as
@@ -69,12 +69,10 @@ public class SortedHashMap extends HashMap
 
     override public function values () :Array
     {
-        var keys :Array = keys();
-        var vals :Array = new Array();
-        for each (var key :Object in keys) {
-            vals.push(get(key));
-        }
-        return vals;
+        // not very optimal, we need to look up each value from the sorted keys.
+        return keys().map(function (key :Object, ... rest) :Object {
+            return get(key);
+        });
     }
 
     override public function forEach (fn :Function) :void
diff --git a/src/as/com/threerings/util/WeakValueHashMap.as b/src/as/com/threerings/util/WeakValueHashMap.as
index 8731c9eb0..97d849f8e 100644
--- a/src/as/com/threerings/util/WeakValueHashMap.as
+++ b/src/as/com/threerings/util/WeakValueHashMap.as
@@ -49,28 +49,19 @@ public class WeakValueHashMap extends HashMap
     /** @inheritDoc */
     override public function size () :int
     {
-        prune();
+        forEach0(function (k :*, v: *) :void {});
         return super.size(); // alternately, we could prune and increment a count for all present..
     }
 
-    /** @inheritDoc */
-    override public function forEach (fn :Function) :void
-    {
-        prune(fn); // just prune & run the forEach at the same time
-    }
-
-    /**
-     * Prune garbage collected values from the map, optionally calling a function for each
-     * found key/value pair.
-     */
-    protected function prune (fn :Function = null) :void
+    /** @private */
+    override protected function forEach0 (fn :Function) :void
     {
         var removeKeys :Array = [];
-        super.forEach(function (key :*, value :WeakReference) :void {
+        super.forEach0(function (key :*, value :WeakReference) :void {
             var rawVal :* = (value == null) ? null : value.get();
             if (rawVal === undefined) {
                 removeKeys.push(key);
-            } else if (fn != null) {
+            } else {
                 fn(key, rawVal);
             }
         });
@@ -81,6 +72,7 @@ public class WeakValueHashMap extends HashMap
 
     /**
      * Unwrap a possible WeakReference for returning to the user.
+     * @private
      */
     protected function unwrap (val :*) :*
     {