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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * 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.

 *

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 */

/*

 * @test

 * @bug 8046171

 * @summary Test access to private methods between nestmates where there

 *          is an inheritance hierarchy and we invoke private methods that

 *          exist in specific classes in the hierarchy.

 * @run main TestReflectionHierarchy

 * @run main/othervm -Dsun.reflect.noInflation=true TestReflectionHierarchy

 */

// The first run will use NativeMethodAccessor and due to the limited number

// of calls we will not reach the inflation threshold.

// The second run disables inflation so we will use the GeneratedMethodAccessor

// instead. In this way both sets of Reflection classes are tested.

public class TestReflectionHierarchy {

    static class NestedA extends ExternalSuper {

        static final String ID =  "NestedA::priv_invoke";

        private String priv_invoke() {

            return ID;

        }

        static void checkA(NestedA a) throws Throwable {

            verifyEquals((String)NestedA.class.

                         getDeclaredMethod("priv_invoke",

                                           new Class<?>[0]).

                         invoke(a, new Object[0]),

                         NestedA.ID);

        }

    }

    static class NestedB extends NestedA {

        static final String ID =  "NestedB::priv_invoke";

        private String priv_invoke() {

            return ID;

        }

        static void checkA(NestedA a) throws Throwable {

            verifyEquals((String)NestedA.class.

                         getDeclaredMethod("priv_invoke",

                                           new Class<?>[0]).

                         invoke(a, new Object[0]),

                         NestedA.ID);

        }

    }

    static class NestedC extends NestedB {

        static final String ID =  "NestedC::priv_invoke";

        private String priv_invoke() {

            return ID;

        }

        static void checkA(NestedA a) throws Throwable {

            verifyEquals((String)NestedA.class.

                         getDeclaredMethod("priv_invoke",

                                           new Class<?>[0]).

                         invoke(a, new Object[0]),

                         NestedA.ID);

        }

    }

    static void checkA(NestedA a) throws Throwable {

            verifyEquals((String)NestedA.class.

                         getDeclaredMethod("priv_invoke",

                                           new Class<?>[0]).

                         invoke(a, new Object[0]),

                         NestedA.ID);

    }

    static void checkB(NestedB b) throws Throwable {

            verifyEquals((String)NestedB.class.

                         getDeclaredMethod("priv_invoke",

                                           new Class<?>[0]).

                         invoke(b, new Object[0]),

                         NestedB.ID);

    }

    static void checkC(NestedC c) throws Throwable {

            verifyEquals((String)NestedC.class.

                         getDeclaredMethod("priv_invoke",

                                           new Class<?>[0]).

                         invoke(c, new Object[0]),

                         NestedC.ID);

    }

    // Access to private members of classes outside the nest is

    // not permitted. These tests should throw IllegalAccessException

    // at runtime.

    static void checkExternalSuper(ExternalSuper s) throws Throwable {

        try {

            ExternalSuper.class.

                getDeclaredMethod("priv_invoke", new Class<?>[0]).

                invoke(s, new Object[0]);

            throw new Error("Unexpected access to ExternalSuper.priv_invoke");

        }

        catch (IllegalAccessException iae) {

            System.out.println("Got expected exception accessing ExternalSuper.priv_invoke:" + iae);

        }

    }

    static void checkExternalSub(ExternalSub s) throws Throwable {

        try {

            ExternalSub.class.

                getDeclaredMethod("priv_invoke", new Class<?>[0]).

                invoke(s, new Object[0]);

            throw new Error("Unexpected access to ExternalSub.priv_invoke");

        }

        catch (IllegalAccessException iae) {

            System.out.println("Got expected exception accessing ExternalSub.priv_invoke:" + iae);

        }

    }

    static void verifyEquals(String actual, String expected) {

        if (!actual.equals(expected)) {

            throw new Error("Expected " + expected + " but got " + actual);

        }

        System.out.println("Check passed for " + expected);

    }

    public static void main(String[] args) throws Throwable {

        NestedA a = new NestedA();

        NestedB b = new NestedB();

        NestedC c = new NestedC();

        ExternalSub sub = new ExternalSub();

        ExternalSuper sup = new ExternalSuper();

        checkExternalSuper(sup);

        checkExternalSuper(a);

        checkExternalSuper(b);

        checkExternalSuper(c);

        checkExternalSuper(sub);

        checkA(a);

        checkA(b);

        checkA(c);

        checkA(sub);

        NestedA.checkA(a);

        NestedA.checkA(b);

        NestedA.checkA(c);

        NestedA.checkA(sub);

        NestedB.checkA(a);

        NestedB.checkA(b);

        NestedB.checkA(c);

        NestedB.checkA(sub);

        NestedC.checkA(a);

        NestedC.checkA(b);

        NestedC.checkA(c);

        NestedC.checkA(sub);

        checkB(b);

        checkB(c);

        checkB(sub);

        checkC(c);

        checkC(sub);

        checkExternalSub(sub);

    }

}

// Classes that are not part of the nest.

// Being non-public allows us to declare them in this file.

class ExternalSuper {

    static final String ID =  "ExternalSuper::priv_invoke";

    private String priv_invoke() {

        return ID;

    }

}

class ExternalSub extends TestReflectionHierarchy.NestedC {

    static final String ID =  "ExternalSub::priv_invoke";

    private String priv_invoke() {

        return ID;

    }

}