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 }