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 fields between nestmates and nest-host 28 * using different flavours of named nested types 29 * @run main TestPrivateStaticField 30 */ 31 32 public class TestPrivateStaticField { 33 34 // Private static field of nest-host for nestmates to access 35 private static int priv_field; 36 37 // public constructor so we aren't relying on private access 38 public TestPrivateStaticField() {} 39 40 // Methods that will access private static fields of nestmates 41 // We use the arguments for overloading purposes and use the fact 42 // you can access a static field through an object reference for 43 // convenience. 44 45 // NOTE: No InnerNested calls in this test because non-static nested types 46 // can't have static fields. Also no StaticIface calls as static interface 47 // fields must be public (and final) 48 49 void access_priv(TestPrivateStaticField o) { 50 priv_field = o.priv_field++; 51 } 52 void access_priv(StaticNested o) { 53 priv_field = o.priv_field++; 54 } 55 56 // The various nestmates 57 58 static interface StaticIface { 59 60 // Methods that will access private static fields of nestmates 61 62 default void access_priv(TestPrivateStaticField o) { 63 int priv_field = o.priv_field++; 64 } 65 default void access_priv(StaticNested o) { 66 int priv_field = o.priv_field++; 67 } 68 } 69 70 static class StaticNested { 71 72 private static int priv_field; 73 74 // public constructor so we aren't relying on private access 75 public StaticNested() {} 76 77 // Methods that will access private static fields of nestmates 78 79 void access_priv(TestPrivateStaticField o) { 80 priv_field = o.priv_field++; 81 } 82 void access_priv(StaticNested o) { 83 priv_field = o.priv_field++; 84 } 85 } 86 87 class InnerNested { 88 89 // public constructor so we aren't relying on private access 90 public InnerNested() {} 91 92 void access_priv(TestPrivateStaticField o) { 93 int priv_field = o.priv_field++; 94 } 95 void access_priv(StaticNested o) { 96 int priv_field = o.priv_field++; 97 } 98 } 99 100 public static void main(String[] args) { 101 TestPrivateStaticField o = new TestPrivateStaticField(); 102 StaticNested s = new StaticNested(); 103 InnerNested i = o.new InnerNested(); 104 StaticIface intf = new StaticIface() {}; 105 106 o.access_priv(new TestPrivateStaticField()); 107 o.access_priv(s); 108 109 s.access_priv(o); 110 s.access_priv(new StaticNested()); 111 112 i.access_priv(o); 113 i.access_priv(s); 114 115 intf.access_priv(o); 116 intf.access_priv(s); 117 } 118 }