--- /dev/null	2019-07-07 00:27:35.580000035 -0400
+++ new/test/hotspot/jtreg/runtime/VtableTests/VTableTest.java	2019-07-10 14:02:01.358015147 -0400
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2019, 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 8226798
+ * @summary Check that the vTable for class C gets set up without causing
+ *          an assertion failure.
+ * @compile pkg/A.java
+ * @run main VTableTest
+ */
+
+public class VTableTest {
+
+    interface Intf {
+        public default void m() { }
+        public default void unusedButNeededToReproduceIssue() { }
+    }
+
+    static class B extends pkg.A implements Intf {
+    }
+
+    static class C extends B {
+        public void m() { System.out.println("In C.m()"); }
+    }
+
+    public static void main(String[] args) {
+        new C().m();
+    }
+}