--- a/langtools/src/share/classes/com/sun/tools/javadoc/RootDocImpl.java	Thu Mar 27 18:41:28 2014 -0400
+++ b/langtools/src/share/classes/com/sun/tools/javadoc/RootDocImpl.java	Sat Mar 29 11:06:33 2014 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -381,6 +381,11 @@
         env.initDoclint(opts, customTagNames);
     }
 
+    public boolean isFunctionalInterface(AnnotationDesc annotationDesc) {
+        return annotationDesc.annotationType().qualifiedName().equals(
+                env.syms.functionalInterfaceType.toString()) && env.source.allowLambda();
+    }
+
     public boolean showTagMessages() {
         return env.showTagMessages();
     }