1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 public class Main {
18   public static Object a;
19 
$opt$CheckCastMain()20   public static Object $opt$CheckCastMain() {
21     return (Main)a;
22   }
23 
$opt$CheckCastFinalClass()24   public static Object $opt$CheckCastFinalClass() {
25     return (FinalClass)a;
26   }
27 
main(String[] args)28   public static void main(String[] args) {
29     $opt$TestMain();
30     $opt$TestFinalClass();
31   }
32 
$opt$TestMain()33   public static void $opt$TestMain() {
34     a = new Main();
35     $opt$CheckCastMain();
36 
37     a = null;
38     $opt$CheckCastMain();
39 
40     a = new MainChild();
41     $opt$CheckCastMain();
42 
43     a = new Object();
44     try {
45       $opt$CheckCastMain();
46       throw new Error("Should have gotten a ClassCastException");
47     } catch (ClassCastException ex) {}
48   }
49 
$opt$TestFinalClass()50   public static void $opt$TestFinalClass() {
51     a = new FinalClass();
52     $opt$CheckCastFinalClass();
53 
54     a = null;
55     $opt$CheckCastFinalClass();
56 
57     a = new Main();
58     try {
59       $opt$CheckCastFinalClass();
60       throw new Error("Should have gotten a ClassCastException");
61     } catch (ClassCastException ex) {}
62 
63     a = new Object();
64     try {
65       $opt$CheckCastFinalClass();
66       throw new Error("Should have gotten a ClassCastException");
67     } catch (ClassCastException ex) {}
68   }
69 
70   static class MainChild extends Main {}
71 
72   static final class FinalClass {}
73 }
74