--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/LambdaToMethod.java	Tue Aug 28 09:01:54 2018 +0200
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/LambdaToMethod.java	Wed Aug 29 09:36:17 2018 +0200
@@ -715,7 +715,7 @@
             JCBreak br = make.Break(null);
             breaks.add(br);
             List<JCStatement> stmts = entry.getValue().append(br).toList();
-            cases.add(make.Case(make.Literal(entry.getKey()), stmts));
+            cases.add(make.Case(JCCase.STATEMENT, List.of(make.Literal(entry.getKey())), stmts, null));
         }
         JCSwitch sw = make.Switch(deserGetter("getImplMethodName", syms.stringType), cases.toList());
         for (JCBreak br : breaks) {