diff -r 232b9cf6303a -r 4a6f853f8721 src/share/classes/com/sun/tools/javadoc/RootDocImpl.java
--- a/src/share/classes/com/sun/tools/javadoc/RootDocImpl.java	Wed Dec 25 10:36:05 2013 -0800
+++ b/src/share/classes/com/sun/tools/javadoc/RootDocImpl.java	Thu Jan 02 02:15:21 2014 -0800
@@ -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();
     }