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      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 
     20   public static void assertTrue(boolean value) {
     21     if (!value) {
     22       throw new Error("Wrong result");
     23     }
     24   }
     25 
     26   public static void assertFalse(boolean value) {
     27     if (value) {
     28       throw new Error("Wrong result");
     29     }
     30   }
     31 
     32   public static boolean $opt$InstanceOfMain() {
     33     return a instanceof Main;
     34   }
     35 
     36   public static boolean $opt$InstanceOfFinalClass() {
     37     return a instanceof FinalClass;
     38   }
     39 
     40   public static void main(String[] args) {
     41     $opt$TestMain();
     42     $opt$TestFinalClass();
     43   }
     44 
     45   public static void $opt$TestMain() {
     46     a = new Main();
     47     assertTrue($opt$InstanceOfMain());
     48     a = null;
     49     assertFalse($opt$InstanceOfMain());
     50     a = new MainChild();
     51     assertTrue($opt$InstanceOfMain());
     52     a = new Object();
     53     assertFalse($opt$InstanceOfMain());
     54   }
     55 
     56   public static void $opt$TestFinalClass() {
     57     a = new FinalClass();
     58     assertTrue($opt$InstanceOfFinalClass());
     59     a = null;
     60     assertFalse($opt$InstanceOfFinalClass());
     61     a = new Main();
     62     assertFalse($opt$InstanceOfFinalClass());
     63     a = new Object();
     64     assertFalse($opt$InstanceOfFinalClass());
     65   }
     66 
     67   static class MainChild extends Main {}
     68 
     69   static final class FinalClass {}
     70 }
     71