--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/lang/invoke/ClassSpecializerTest.java	Thu Nov 16 00:58:50 2017 +0100
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2017, 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
+ * @summary Smoke-test class specializer, used to create BoundMethodHandle classes
+ * @compile/module=java.base java/lang/invoke/ClassSpecializerHelper.java
+ * @run testng/othervm/timeout=250 -ea -esa ClassSpecializerTest
+ */
+
+// Useful diagnostics to try:
+//   -Djava.lang.invoke.MethodHandle.TRACE_RESOLVE=true
+//   -Djava.lang.invoke.MethodHandle.DUMP_CLASS_FILES=true
+
+
+import org.testng.annotations.*;
+import java.lang.invoke.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import static java.lang.invoke.ClassSpecializerHelper.*;
+
+
+public class ClassSpecializerTest {
+    @Test
+    public void testFindSpecies() throws Throwable {
+        System.out.println("testFindSpecies");
+        System.out.println("test = " + SPEC_TEST);
+        ArrayList<Object> args = new ArrayList<>();
+        for (int key = 0; key <= Kind.MAX_KEY; key++) {
+            Kind k = SpecTest.kind(key);
+            System.out.println("k = " + k);
+            MethodHandle mh = k.factory();
+            System.out.println("k.f = " + mh);
+            args.clear();
+            for (Class<?> pt : mh.type().parameterList()) {
+                args.add(coughUpA(pt));
+            }
+            args.set(0, key * 1000 + 42);
+            Frob f = (Frob) mh.invokeWithArguments(args.toArray());
+            assert(f.kind() == k);
+            System.out.println("k.f(...) = " + f.toString());
+            List<Object> l = f.asList();
+            System.out.println("f.l = " + l);
+            args.subList(0,1).clear();  // drop label
+            assert(args.equals(l));
+        }
+    }
+    private static Object coughUpA(Class<?> pt) throws Throwable {
+        if (pt == String.class)  return "foo";
+        if (pt.isArray()) return java.lang.reflect.Array.newInstance(pt.getComponentType(), 2);
+        if (pt == Integer.class)  return 42;
+        if (pt == Double.class)  return 3.14;
+        if (pt.isAssignableFrom(List.class))
+            return Arrays.asList("hello", "world", "from", pt.getSimpleName());
+        return MethodHandles.zero(pt).invoke();
+    }
+    public static void main(String... av) throws Throwable {
+        System.out.println("TEST: ClassSpecializerTest");
+        new ClassSpecializerTest().testFindSpecies();
+    }
+}