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 static methods between nestmates and nest-top
  28  *          using different flavours of named nested types
  29  * @run main TestInvokeStatic
  30  */
  31 
  32 public class TestInvokeStatic {
  33 
  34     // Private static method of nest-top for nestmates to access
  35     private static void priv_static_invoke() {
  36         System.out.println("TestInvokeStatic::priv_static_invoke");
  37     }
  38 
  39     // public constructor so we aren't relying on private access
  40     public TestInvokeStatic() {}
  41 
  42     // Methods that will access private static methods of nestmates
  43     // We use the arguments for overloading purposes and use the fact
  44     // you can invoke a static method through an object reference for
  45     // convenience. Except for static interface methods of course.
  46 
  47     // NOTE: No InnerNested calls in this test because non-static nested types
  48     // can't have static method
  49 
  50     void access_priv(TestInvokeStatic o) {
  51         o.priv_static_invoke();
  52     }
  53     void access_priv(StaticNested o) {
  54         o.priv_static_invoke();
  55     }
  56     void access_priv(StaticIface o) {
  57         StaticIface.priv_static_invoke();
  58     }
  59 
  60     // The various nestmates
  61 
  62     static interface StaticIface {
  63 
  64         private static void priv_static_invoke() {
  65             System.out.println("StaticIface::priv_static_invoke");
  66         }
  67 
  68         // Methods that will access private static methods of nestmates
  69 
  70         default void access_priv(TestInvokeStatic o) {
  71             o.priv_static_invoke();
  72         }
  73         default void access_priv(StaticNested o) {
  74             o.priv_static_invoke();
  75         }
  76         default void access_priv(StaticIface o) {
  77             StaticIface.priv_static_invoke();
  78         }
  79     }
  80 
  81     static class StaticNested {
  82 
  83         private static void priv_static_invoke() {
  84             System.out.println("StaticNested::priv_static_invoke");
  85         }
  86 
  87         // public constructor so we aren't relying on private access
  88         public StaticNested() {}
  89 
  90         // Methods that will access private static methods of nestmates
  91 
  92         void access_priv(TestInvokeStatic o) {
  93             o.priv_static_invoke();
  94         }
  95         void access_priv(StaticNested o) {
  96             o.priv_static_invoke();
  97         }
  98         void access_priv(StaticIface o) {
  99             StaticIface.priv_static_invoke();
 100         }
 101     }
 102 
 103     class InnerNested {
 104 
 105         // public constructor so we aren't relying on private access
 106         public InnerNested() {}
 107 
 108         void access_priv(TestInvokeStatic o) {
 109             o.priv_static_invoke();
 110         }
 111         void access_priv(StaticNested o) {
 112             o.priv_static_invoke();
 113         }
 114         void access_priv(StaticIface o) {
 115             StaticIface.priv_static_invoke();
 116         }
 117     }
 118 
 119     public static void main(String[] args) {
 120         TestInvokeStatic o = new TestInvokeStatic();
 121         StaticNested s = new StaticNested();
 122         InnerNested i = o.new InnerNested();
 123         StaticIface intf = new StaticIface() {};
 124 
 125         o.access_priv(new TestInvokeStatic());
 126         o.access_priv(s);
 127         o.access_priv(intf);
 128 
 129         s.access_priv(o);
 130         s.access_priv(new StaticNested());
 131         s.access_priv(intf);
 132 
 133         i.access_priv(o);
 134         i.access_priv(s);
 135         i.access_priv(intf);
 136 
 137         intf.access_priv(o);
 138         intf.access_priv(s);
 139         intf.access_priv(new StaticIface(){});
 140     }
 141 }