--- /dev/null 2018-04-28 00:26:07.190086997 -0400 +++ new/test/jdk/java/lang/invoke/FinalVirtualCallFromInterface.java 2018-05-22 05:56:00.027875650 -0400 @@ -0,0 +1,61 @@ +/* + * 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 8200167 8010319 + * @summary Regression test for a bug introduced in 8200167 and fixed in 8010319 + * @run main FinalVirtualCallFromInterface + */ + +import java.lang.invoke.*; + +/* + * Test that a MethodHandle for a final method, called from an interface, works correctly. + * With only 8200167 applied this fails with: + * Exception in thread "main" java.lang.InternalError: Should only be invoked on a subclass + * at + * java.base/java.lang.invoke.DirectMethodHandle.checkReceiver(DirectMethodHandle.java:441) + * + * The nestmate update under 8010319 fixes that bug. + */ +public class FinalVirtualCallFromInterface { + + static class Final { + public final void fm() {} + } + + static interface FinalUser { + static void test() throws Throwable { + MethodType mt = MethodType.methodType(void.class); + MethodHandle mh = MethodHandles.lookup().findVirtual(Final.class, "fm", mt); + Final f = new Final(); + mh.invokeExact(f); + mh.invoke(f); + } + } + + public static void main(String[] args) throws Throwable { + FinalUser.test(); + } +}