1 /*

     2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

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

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 8046171

    27  * @summary Test access to private methods between nestmates and nest-host

    28  *          using different flavours of named nested types using core reflection

    29  * @run main TestReflection

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

    31  */

    32 

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

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

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

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

    37 

    38 public class TestReflection {

    39 

    40     // Private method of nest-host for nestmates to access

    41     private void priv_invoke() {

    42         System.out.println("TestReflection::priv_invoke");

    43     }

    44 

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

    46     public TestReflection() {}

    47 

    48     // Methods that will access private methods of nestmates

    49 

    50     void access_priv(TestReflection o) throws Throwable {

    51         o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

    52     }

    53     void access_priv(InnerNested o) throws Throwable {

    54         o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

    55     }

    56     void access_priv(StaticNested o) throws Throwable {

    57         o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

    58     }

    59     void access_priv(StaticIface o) throws Throwable {

    60         // Can't use o.getClass() as the method is not in that class

    61         StaticIface.class.getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

    62     }

    63 

    64     // The various nestmates

    65 

    66     static interface StaticIface {

    67 

    68         private void priv_invoke() {

    69             System.out.println("StaticIface::priv_invoke");

    70         }

    71 

    72         // Methods that will access private methods of nestmates

    73 

    74         default void access_priv(TestReflection o) throws Throwable {

    75             o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

    76         }

    77         default void access_priv(InnerNested o) throws Throwable {

    78             o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

    79         }

    80         default void access_priv(StaticNested o) throws Throwable {

    81             o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

    82         }

    83         default void access_priv(StaticIface o) throws Throwable {

    84             // Can't use o.getClass() as the method is not in that class

    85             StaticIface.class.getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

    86         }

    87     }

    88 

    89     static class StaticNested {

    90 

    91         private void priv_invoke() {

    92             System.out.println("StaticNested::priv_invoke");

    93         }

    94 

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

    96         public StaticNested() {}

    97 

    98         // Methods that will access private methods of nestmates

    99 

   100         void access_priv(TestReflection o) throws Throwable {

   101             o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

   102         }

   103         void access_priv(InnerNested o) throws Throwable {

   104             o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

   105         }

   106         void access_priv(StaticNested o) throws Throwable {

   107             o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

   108         }

   109         void access_priv(StaticIface o) throws Throwable {

   110             // Can't use o.getClass() as the method is not in that class

   111             StaticIface.class.getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

   112         }

   113     }

   114 

   115     class InnerNested {

   116 

   117         private void priv_invoke() {

   118             System.out.println("InnerNested::priv_invoke");

   119         }

   120 

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

   122         public InnerNested() {}

   123 

   124         void access_priv(TestReflection o) throws Throwable {

   125             o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

   126         }

   127         void access_priv(InnerNested o) throws Throwable {

   128             o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

   129         }

   130         void access_priv(StaticNested o) throws Throwable {

   131             o.getClass().getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

   132         }

   133         void access_priv(StaticIface o) throws Throwable {

   134             // Can't use o.getClass() as the method is not in that class

   135             StaticIface.class.getDeclaredMethod("priv_invoke", new Class<?>[0]).invoke(o, new Object[0]);

   136         }

   137     }

   138 

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

   140         TestReflection o = new TestReflection();

   141         StaticNested s = new StaticNested();

   142         InnerNested i = o.new InnerNested();

   143         StaticIface intf = new StaticIface() {};

   144 

   145         o.access_priv(new TestReflection());

   146         o.access_priv(i);

   147         o.access_priv(s);

   148         o.access_priv(intf);

   149 

   150         s.access_priv(o);

   151         s.access_priv(i);

   152         s.access_priv(new StaticNested());

   153         s.access_priv(intf);

   154 

   155         i.access_priv(o);

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

   157         i.access_priv(s);

   158         i.access_priv(intf);

   159 

   160         intf.access_priv(o);

   161         intf.access_priv(i);

   162         intf.access_priv(s);

   163         intf.access_priv(new StaticIface(){});

   164     }

   165 }