content: /*
   * Copyright (C) 2007 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  import java.lang.reflect.Type;
  
  /**
   * Throw a few things at the verifier, all of which are expected to pass.
   */
  public class Main {
      static public void main(String[] args) {
          tryBlah(1);
  
          System.out.println("Zorch.");
          System.out.println("10 == " + instanceOfTest(10));
      }
  
      /*
       * Make sure the verifier is handling type merge of arrays of
       * references correctly.
       */
      static Object[] arrayCheck1(int wanted) {
          String[] arrayOne;
          Integer[] arrayTwo;
  
          arrayOne = new String[1];
          arrayTwo = new Integer[1];
  
          switch (wanted) {
              case 0:     return arrayOne;
              case 1:     return arrayTwo;
              default:    return null;
          }
      }
  
      static Object arrayCheck1b(int wanted) {
          String[] arrayOne;
          Integer[] arrayTwo;
          int[] arrayThree;
  
          arrayOne = new String[1];
          arrayTwo = new Integer[1];
          arrayThree = new int[1];
  
          switch (wanted) {
              case 0:     return arrayOne;
              case 1:     return arrayTwo;
              case 2:     return arrayThree;
              default:    return null;
          }
      }
  
      static Object[] arrayCheck2(int wanted) {
          String[][] arrayOne;
          String[][] arrayTwo;
          Integer[][] arrayThree;
  
          arrayOne = new String[1][];
          arrayTwo = new String[1][];
          arrayThree = new Integer[1][];
  
          switch (wanted) {
              case 0:     return arrayOne;
              case 1:     return arrayTwo;
              case 2:     return arrayThree;
              default:    return null;
          }
      }
  
      static Object[] arrayCheck3(int wanted) {
          String[][] arrayTwo;
          String[][][][] arrayFour;
  
          arrayTwo = new String[1][];
          arrayFour = new String[1][][][];
  
          switch (wanted) {
              case 0:     return arrayTwo;
              case 1:     return arrayFour;
              default:    return null;
          }
      }
  
      /*
       * Check return type merge.
       */
      private Type[] typeTest() {
          if(this == null) {
              return (Class<?>[])null;
          }
          return (Type[])null;
      }
  
  
      /*
       * Exercise the blahs.
       */
      static void tryBlah(int num) {
          BlahFeature feature = null;     // interface ref
  
          switch (num) {
              case 1:
                  feature = new BlahOne();
                  break;
              default:
                  feature = new BlahTwo();
                  break;
          }
  
          feature.doStuff();
      }
  
      static int instanceOfTest(Integer x) {
        Object y = x;
        if (y instanceof String) {
          // Bug: 15808277
          // Non-sensical instance-of to check merging after the branch doesn't result in a verifier
          // error.
          ((String)y).charAt(0);
        }
        return x.intValue();
      }
  }
  