--- /dev/null 2015-10-29 11:54:42.000000000 +0100 +++ new/test/java/lang/invoke/CustomizedLambdaFormTest.java 2015-10-29 11:54:42.000000000 +0100 @@ -0,0 +1,45 @@ +/* + * Copyright (c) 2015, 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. + */ + +package java.lang.invoke; + +/* @test + * @summary Assertion in LambdaFormEditor.bindArgumentType is too strong + * + * @run main/bootclasspath -esa java.lang.invoke.CustomizedLambdaFormTest + */ +public class CustomizedLambdaFormTest { + + static void testExtendCustomizedBMH() throws Exception { + // Construct BMH + MethodHandle mh = MethodHandles.Lookup.IMPL_LOOKUP.findVirtual(String.class, "concat", + MethodType.methodType(String.class, String.class)) + .bindTo("a"); + mh.customize(); + mh.bindTo("b"); // Try to extend customized BMH + } + + public static void main(String[] args) throws Throwable { + testExtendCustomizedBMH(); + } +}