--- a/langtools/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/builders/MemberSummaryBuilder.java	Fri Dec 16 12:08:46 2016 +0100
+++ b/langtools/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/builders/MemberSummaryBuilder.java	Fri Dec 16 15:27:34 2016 +0000
@@ -529,9 +529,7 @@
             buildInheritedSummary(writer, visibleMemberMap, summaryTreeList);
         if (!summaryTreeList.isEmpty()) {
             Content memberTree = writer.getMemberSummaryHeader(typeElement, memberSummaryTree);
-            summaryTreeList.stream().forEach((aSummaryTreeList) -> {
-                memberTree.addContent(aSummaryTreeList);
-            });
+            summaryTreeList.stream().forEach(memberTree::addContent);
             writer.addMemberTree(memberSummaryTree, memberTree);
         }
     }