1 /*
   2  * Copyright (c) 2017, 2018, 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 import java.util.Arrays;
  25 import java.util.List;
  26 import java.util.LinkedList;
  27 
  28 // A sample nest for use with reflection API tests
  29 public class SampleNest {
  30 
  31     // recursively gather all the named nested types
  32 
  33     static List<Class<?>> _nestedTypes = new LinkedList<>();
  34 
  35     static void gather(Class<?> c) {
  36         _nestedTypes.add(c);
  37         for (Class<?> d : c.getDeclaredClasses()) {
  38             gather(d);
  39         }
  40     }
  41 
  42     static {
  43         gather(SampleNest.class);
  44         SampleNest s = new SampleNest();
  45     }
  46 
  47     public static Class<?>[] nestedTypes() {
  48         return _nestedTypes.toArray(new Class<?>[0]);
  49     }
  50 
  51     // Define a nested type of each possible kind
  52 
  53     static class StaticClass { }
  54     static interface StaticIface { }
  55     class InnerClass { }
  56     interface InnerIface { }
  57 
  58     // check multi-level nesting
  59 
  60     static class DeepNest1 {
  61         static class DeepNest2 {
  62             static class DeepNest3 {
  63             }
  64         }
  65     }
  66 
  67     // local and anonymous classes aren't declared
  68     // so they have to add themselves
  69     public SampleNest() {
  70         class LocalClass { }
  71         _nestedTypes.add(LocalClass.class);
  72 
  73         Runnable r = new Runnable() {
  74                 public void run() {
  75                     // anonymous class
  76                     _nestedTypes.add(getClass());
  77                 }
  78             };
  79         r.run();
  80     }
  81 }
  82