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 constructors 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 NativeConstructorAccessor and due to the limited 34 // number of calls we will not reach the inflation threshold. 35 // The second run disables inflation so we will use the 36 // GeneratedConstructorAccessor instead. 37 // In this way both sets of Reflection classes are tested. 38 39 public class TestReflection { 40 41 // All constructors are private to ensure nestmate access checks apply 42 43 // All doConstruct methods are public so they don't involve invoke_special 44 45 private TestReflection() {} 46 47 // The various nestmates 48 49 // Note: No constructor on interfaces so no StaticIface variants 50 51 static interface StaticIface { 52 53 // Methods that will access private constructors of nestmates. 54 55 default void doConstruct(TestReflection o) throws Throwable { 56 Object obj = o.getClass().getDeclaredConstructor(new Class<?>[0]).newInstance(new Object[0]); 57 } 58 default void doConstruct(TestReflection tr, InnerNested o) throws Throwable { 59 Object obj = InnerNested.class.getDeclaredConstructor(new Class<?>[] {TestReflection.class}).newInstance(new Object[] { tr }); 60 } 61 default void doConstruct(StaticNested o) throws Throwable { 62 Object obj = o.getClass().getDeclaredConstructor(new Class<?>[0]).newInstance(new Object[0]); 63 } 64 } 65 66 static class StaticNested { 67 68 private StaticNested() {} 69 70 // Methods that will access private constructors of nestmates. 71 // The arg is a dummy for overloading purposes 72 73 public void doConstruct(TestReflection o) throws Throwable { 74 Object obj = o.getClass().getDeclaredConstructor(new Class<?>[0]).newInstance(new Object[0]); 75 } 76 public void doConstruct(TestReflection tr, InnerNested o) throws Throwable { 77 Object obj = InnerNested.class.getDeclaredConstructor(new Class<?>[] {TestReflection.class}).newInstance(new Object[] { tr }); 78 } 79 public void doConstruct(StaticNested o) throws Throwable { 80 Object obj = o.getClass().getDeclaredConstructor(new Class<?>[0]).newInstance(new Object[0]); 81 } 82 } 83 84 class InnerNested { 85 86 private InnerNested() {} 87 88 // Methods that will access private constructors of nestmates. 89 // The arg is a dummy for overloading purposes 90 91 public void doConstruct(TestReflection o) throws Throwable { 92 Object obj = o.getClass().getDeclaredConstructor(new Class<?>[0]).newInstance(new Object[0]); 93 } 94 public void doConstruct(TestReflection tr, InnerNested o) throws Throwable { 95 Object obj = InnerNested.class.getDeclaredConstructor(new Class<?>[] {TestReflection.class}).newInstance(new Object[] { tr }); 96 } 97 public void doConstruct(StaticNested o) throws Throwable { 98 Object obj = o.getClass().getDeclaredConstructor(new Class<?>[0]).newInstance(new Object[0]); 99 } 100 } 101 102 public static void main(String[] args) throws Throwable { 103 // These initial constructions test nest-host access 104 TestReflection o = TestReflection.class.getDeclaredConstructor(new Class<?>[0]).newInstance(new Object[0]); 105 StaticNested s = StaticNested.class.getDeclaredConstructor(new Class<?>[0]).newInstance(new Object[0]); 106 InnerNested i = InnerNested.class.getDeclaredConstructor(new Class<?>[] {TestReflection.class}).newInstance(new Object[] { o }); 107 108 StaticIface intf = new StaticIface() {}; 109 110 s.doConstruct(o); 111 s.doConstruct(o, i); 112 s.doConstruct(s); 113 114 i.doConstruct(o); 115 i.doConstruct(o, i); 116 i.doConstruct(s); 117 118 intf.doConstruct(o); 119 intf.doConstruct(o, i); 120 intf.doConstruct(s); 121 } 122 }