--- a/langtools/src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/JavadocMemberEnter.java	Fri Dec 16 12:08:46 2016 +0100
+++ b/langtools/src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/JavadocMemberEnter.java	Fri Dec 16 15:27:34 2016 +0000
@@ -56,11 +56,7 @@
     }
 
     public static void preRegister(Context context) {
-        context.put(memberEnterKey, new Context.Factory<MemberEnter>() {
-               public MemberEnter make(Context c) {
-                   return new JavadocMemberEnter(c);
-               }
-        });
+        context.put(memberEnterKey, (Context.Factory<MemberEnter>)JavadocMemberEnter::new);
     }
 
     final ToolEnvironment toolEnv;