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-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
39 public class TestReflection {
40
41 // Private method of nest-host for nestmates to access
42 private static void priv_static_invoke() {
43 System.out.println("TestReflection::priv_static_invoke");
44 }
45
46 // public constructor so we aren't relying on private access
47 public TestReflection() {}
48
49 // Methods that will access private static methods of nestmates
50
51 // NOTE: No InnerNested calls in this test because non-static nested types
52 // can't have static methods
53
54 void access_priv(TestReflection o) throws Throwable {
55 o.getClass().getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
56 }
57 void access_priv(StaticNested o) throws Throwable {
58 o.getClass().getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
59 }
60 void access_priv(StaticIface o) throws Throwable {
61 // Can't use o.getClass() as the method is not in that class
62 StaticIface.class.getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
63 }
64
65 // The various nestmates
66
67 static interface StaticIface {
68
69 private static void priv_static_invoke() {
70 System.out.println("StaticIface::priv_static_invoke");
71 }
72
73 // Methods that will access private static methods of nestmates
74
75 default void access_priv(TestReflection o) throws Throwable {
76 o.getClass().getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
77 }
78 default void access_priv(StaticNested o) throws Throwable {
79 o.getClass().getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
80 }
81 default void access_priv(StaticIface o) throws Throwable {
82 // Can't use o.getClass() as the method is not in that class
83 StaticIface.class.getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
84 }
85 }
86
87 static class StaticNested {
88
89 private static void priv_static_invoke() {
90 System.out.println("StaticNested::priv_static_invoke");
91 }
92
93 // public constructor so we aren't relying on private access
94 public StaticNested() {}
95
96 // Methods that will access private static methods of nestmates
97
98 void access_priv(TestReflection o) throws Throwable {
99 o.getClass().getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
100 }
101 void access_priv(StaticNested o) throws Throwable {
102 o.getClass().getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
103 }
104 void access_priv(StaticIface o) throws Throwable {
105 // Can't use o.getClass() as the method is not in that class
106 StaticIface.class.getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
107 }
108 }
109
110 class InnerNested {
111
112 // public constructor so we aren't relying on private access
113 public InnerNested() {}
114
115 void access_priv(TestReflection o) throws Throwable {
116 o.getClass().getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
117 }
118 void access_priv(StaticNested o) throws Throwable {
119 o.getClass().getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
120 }
121 void access_priv(StaticIface o) throws Throwable {
122 // Can't use o.getClass() as the method is not in that class
123 StaticIface.class.getDeclaredMethod("priv_static_invoke", new Class<?>[0]).invoke(null, new Object[0]);
124 }
125 }
126
127 public static void main(String[] args) throws Throwable {
128 TestReflection o = new TestReflection();
129 StaticNested s = new StaticNested();
130 InnerNested i = o.new InnerNested();
131 StaticIface intf = new StaticIface() {};
132
133 o.access_priv(new TestReflection());
134 o.access_priv(s);
135 o.access_priv(intf);
136
137 s.access_priv(o);
138 s.access_priv(new StaticNested());
139 s.access_priv(intf);
140
141 i.access_priv(o);
142 i.access_priv(s);
143 i.access_priv(intf);
144
145 intf.access_priv(o);
146 intf.access_priv(s);
147 intf.access_priv(new StaticIface(){});
148 }
149 }