--- a/nashorn/src/jdk/nashorn/internal/runtime/linker/NashornBeansLinker.java	Tue Feb 25 18:56:10 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/runtime/linker/NashornBeansLinker.java	Wed Feb 26 13:17:57 2014 +0100
@@ -100,6 +100,11 @@
             return filters != null ? MethodHandles.filterArguments(typed, 0, filters) : typed;
         }
 
+        @Override
+        public MethodHandle asTypeLosslessReturn(MethodHandle handle, MethodType fromType) {
+            return Implementation.asTypeLosslessReturn(this, handle, fromType);
+        }
+
         private static boolean shouldConvert(final Class<?> handleType, final Class<?> fromType) {
             return handleType == Object.class && fromType == Object.class;
         }