8139863: [TESTBUG] Need to port tests for JDK-8134903 to 8u-dev

Summary: backport of a test that was forgotten in the original backport
Reviewed-by: psandoz

test/java/lang/invoke/CustomizedLambdaFormTest.java

+/*
+ * 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();
+    }
+}