1 /*

     2  * Copyright (c) 2016, 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 package b;

    24 

    25 import java.lang.reflect.AccessibleObject;

    26 import java.lang.reflect.Constructor;

    27 import java.lang.reflect.Field;

    28 import java.lang.reflect.InvocationTargetException;

    29 import java.lang.reflect.Method;

    30 

    31 /**

    32  * A package-private class in b.

    33  */

    34 class Package {

    35 

    36     // fields

    37     private static int privateStatic;

    38     private int privateInstance;

    39     static int packageStatic;

    40     int packageInstance;

    41     protected static int protectedStatic;

    42     protected int protectedInstance;

    43     public static int publicStatic;

    44     public int publicInstance;

    45 

    46     // methods

    47     private static int privateStatic() { return 42; }

    48     private int privateInstance() { return 42; }

    49     static int packageStatic() { return 42; }

    50     int packageInstance() { return 42; }

    51     protected static int protectedStatic() { return 42; }

    52     protected int protectedInstance() { return 42; }

    53     public static int publicStatic() { return 42; }

    54     public int publicInstance() { return 42; }

    55 

    56     // constructors

    57     private Package(Void _1, Void _2, Void _3) {}

    58     Package(Void _1, Void _2) {}

    59     protected Package(Void _1) {}

    60     public Package() {}

    61 

    62 

    63     // testing method

    64     public static void checkAccess(AccessibleObject accessibleObject, Object obj)

    65         throws IllegalAccessException,

    66                InvocationTargetException,

    67                InstantiationException

    68     {

    69         if (accessibleObject instanceof Field) {

    70             Field field = (Field) accessibleObject;

    71             field.set(obj, 42);

    72             field.get(obj);

    73         } else if (accessibleObject instanceof Method) {

    74             Method method = (Method) accessibleObject;

    75             method.invoke(obj);

    76         } else if (accessibleObject instanceof Constructor) {

    77             Constructor<?> constructor = (Constructor<?>) accessibleObject;

    78             Object[] params = new Object[constructor.getParameterCount()];

    79             constructor.newInstance(params);

    80         }

    81     }

    82 }