--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java	Mon May 16 12:03:41 2016 +0100
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java	Mon May 16 13:05:42 2016 +0100
@@ -2678,6 +2678,7 @@
         class ExpressionLambdaReturnContext extends FunctionalReturnContext {
 
             JCExpression expr;
+            boolean expStmtExpected;
 
             ExpressionLambdaReturnContext(JCExpression expr, CheckContext enclosingContext) {
                 super(enclosingContext);
@@ -2685,10 +2686,23 @@
             }
 
             @Override
+            public void report(DiagnosticPosition pos, JCDiagnostic details) {
+                if (expStmtExpected) {
+                    enclosingContext.report(pos, diags.fragment(Fragments.StatExprExpected));
+                } else {
+                    super.report(pos, details);
+                }
+            }
+
+            @Override
             public boolean compatible(Type found, Type req, Warner warn) {
                 //a void return is compatible with an expression statement lambda
-                return TreeInfo.isExpressionStatement(expr) && req.hasTag(VOID) ||
-                        super.compatible(found, req, warn);
+                if (req.hasTag(VOID)) {
+                    expStmtExpected = true;
+                    return TreeInfo.isExpressionStatement(expr);
+                } else {
+                    return super.compatible(found, req, warn);
+                }
             }
         }