version can be null.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@8649 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/Functions.java

@@ -715,7 +715,7 @@ public class Functions {
      *
      * @since 1.150
      */
-    public static Object defaulted(Object value, Object defaultValue) {
+    public static <T> T defaulted(T value, T defaultValue) {
         return value!=null ? value : defaultValue;
     }