--- /dev/null	2018-07-31 07:28:32.999928974 +0200
+++ new/test/langtools/tools/javac/switchexpr/EmptySwitch.java	2018-08-01 08:09:40.339824347 +0200
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2018, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8206986
+ * @summary Verify than an empty switch expression is rejected.
+ * @compile/fail/ref=EmptySwitch.out --enable-preview -source 12 -XDrawDiagnostics EmptySwitch.java
+ */
+
+public class EmptySwitch {
+    private void print(EmptySwitchEnum t) {
+        (switch (t) {
+        }).toString();
+    }
+
+    enum EmptySwitchEnum {
+    }
+}