--- /dev/null 2017-06-20 19:16:12.000000000 -0700 +++ new/test/valhalla/mvt/modules/m/p/Main.java 2017-06-20 19:16:11.000000000 -0700 @@ -0,0 +1,81 @@ +/* + * 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. + */ + +package p; + +import java.lang.invoke.*; +import java.lang.reflect.Field; +import java.util.Arrays; +import java.util.Comparator; +import java.util.List; +import java.util.stream.Collectors; + +import jdk.experimental.value.ValueType; +import p.internal.Point; + +public class Main { + private static List FIELD_NAMES = List.of("x", "y", "z"); + private static List> FIELD_TYPES = List.of(int.class, short.class, short.class); + + public static void main(String... args) throws Exception { + ValueType valueType = ValueType.forClass(Point.class); + Module module = Point.class.getModule(); + assertTrue(module.isNamed(), "unexpected " + module.toString()); + assertTrue(valueType.boxClass().getModule() == module, + "unexpected " + valueType.boxClass().getModule()); + assertTrue(valueType.valueClass().getModule() == module, + "unexpected " + valueType.valueClass().getModule() ); + + Field[] fields = Point.class.getDeclaredFields(); + assertTrue(fields.length == FIELD_NAMES.size(), Arrays.toString(fields)); + + // validate field names + List names = Arrays.stream(fields) + .sorted(Comparator.comparing(Field::getName)) + .map(Field::getName) + .collect(Collectors.toList()); + assertTrue(names.equals(FIELD_NAMES), names.toString()); + + // validate field types + List> types = Arrays.stream(fields) + .sorted(Comparator.comparing(Field::getName)) + .map(Field::getType) + .collect(Collectors.toList()); + assertTrue(types.equals(FIELD_TYPES), types.toString()); + + // getting MethodHandle + MethodHandles.Lookup lookup = + MethodHandles.privateLookupIn(Point.class, MethodHandles.lookup()); + for (Field f : fields) { + MethodHandle mh1 = valueType.findGetter(lookup, f.getName(), f.getType()); + MethodHandle mh2 = valueType.findWither(lookup, f.getName(), f.getType()); + System.out.println(mh1 + " " + mh2); + } + } + + private static void assertTrue(boolean b, String msg) { + if (!b) { + throw new RuntimeException(msg); + } + } +}