/*

 * 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 8046171

 * @summary Test JNI access to private fields between nestmates and nest-host

 *          using different flavours of named nested types

 * @compile ../NestmatesJNI.java

 * @run main/othervm/native TestJNI

 * @run main/othervm/native -Xcheck:jni TestJNI

 */

public class TestJNI {

    // Private field of nest-host for nestmates to access

    private int priv_field;

    static final String FIELD = "priv_field";

    // public constructor so we aren't relying on private access

    public TestJNI() {}

    // Methods that will access private fields of nestmates

    // NOTE: No StaticIface variants as interfaces can't have instance fields

    void access_priv(TestJNI o) {

        this.priv_field = getAndInc(o, o.getClass(), FIELD);

    }

    void access_priv(InnerNested o) {

        this.priv_field = getAndInc(o, o.getClass(), FIELD);

    }

    void access_priv(StaticNested o) {

        this.priv_field = getAndInc(o, o.getClass(), FIELD);

    }

    // The various nestmates

    static interface StaticIface {

        // Methods that will access private fields of nestmates

        default void access_priv(TestJNI o) {

            int priv_field = getAndInc(o, o.getClass(), FIELD);

        }

        default void access_priv(InnerNested o) {

            int priv_field = getAndInc(o, o.getClass(), FIELD);

        }

        default void access_priv(StaticNested o) {

            int priv_field = getAndInc(o, o.getClass(), FIELD);

        }

    }

    static class StaticNested {

        private int priv_field;

        // public constructor so we aren't relying on private access

        public StaticNested() {}

        // Methods that will access private fields of nestmates

        void access_priv(TestJNI o) {

            this.priv_field = getAndInc(o, o.getClass(), FIELD);

        }

        void access_priv(InnerNested o) {

            this.priv_field = getAndInc(o, o.getClass(), FIELD);

        }

        void access_priv(StaticNested o) {

            this.priv_field = getAndInc(o, o.getClass(), FIELD);

        }

    }

    class InnerNested {

        private int priv_field;

        // public constructor so we aren't relying on private access

        public InnerNested() {}

        void access_priv(TestJNI o) {

            this.priv_field = getAndInc(o, o.getClass(), FIELD);

        }

        void access_priv(InnerNested o) {

            this.priv_field = getAndInc(o, o.getClass(), FIELD);

        }

        void access_priv(StaticNested o) {

            this.priv_field = getAndInc(o, o.getClass(), FIELD);

        }

    }

    public static void main(String[] args) {

        TestJNI o = new TestJNI();

        StaticNested s = new StaticNested();

        InnerNested i = o.new InnerNested();

        StaticIface intf = new StaticIface() {};

        o.access_priv(new TestJNI());

        o.access_priv(i);

        o.access_priv(s);

        s.access_priv(o);

        s.access_priv(i);

        s.access_priv(new StaticNested());

        i.access_priv(o);

        i.access_priv(o.new InnerNested());

        i.access_priv(s);

        intf.access_priv(o);

        intf.access_priv(i);

        intf.access_priv(s);

    }

    static int getAndInc(Object target, Class<?> klass, String field) {

        String definingClass = klass.getName();

        String desc = "Access to field " +

                       definingClass + "." + field + " on instance of class " +

                       target.getClass().getName();

        int first, second;

        try {

            first = NestmatesJNI.getIntField(target, definingClass, field);

            NestmatesJNI.setIntField(target, definingClass, field, (first + 1));

            second = NestmatesJNI.getIntField(target, definingClass, field);

        }

        catch (Throwable t) {

            throw new Error(desc + ": Unexpected exception: " + t, t);

        }

        if (second != first + 1) {

            throw new Error(desc + ": wrong field values: first=" + first +

                            ", second=" + second + " (should equal first+1)");

        }

        System.out.println(desc + " - passed");

        return first;

    }

}