content: /*
   * Copyright (C) 2016 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.
   */
  
  public class Main implements Runnable {
      static final int numberOfThreads = 2;
      static final int totalOperations = 40000;
      static boolean sFlag = false;
      static volatile boolean done = false;
      int threadIndex;
  
      public static native void deoptimizeAll();
      public static native void undeoptimizeAll();
  
      Main(int index) {
          threadIndex = index;
      }
  
      public static void main(String[] args) throws Exception {
          System.loadLibrary(args[0]);
  
          final Thread[] threads = new Thread[numberOfThreads];
          for (int t = 0; t < threads.length; t++) {
              threads[t] = new Thread(new Main(t));
              threads[t].start();
          }
          for (Thread t : threads) {
              t.join();
          }
          System.out.println("Finishing");
      }
  
      public String $noinline$run0() {
          // Prevent inlining.
          if (sFlag) {
              throw new Error();
          }
          char[] arr = {'a', 'b', 'c'};
          String str = new String(arr, 0, arr.length);
          if (!str.equals("abc")) {
              System.out.println("Failure 1! " + str);
              System.exit(0);
          }
          return str;
      }
  
      public void run() {
          if (threadIndex == 0) {
              // This thread keeps doing deoptimization of all threads.
              // Hopefully that will trigger one deoptimization when returning from
              // StringFactory.newEmptyString() in one of the other threads.
              for (int i = 0; i < totalOperations; ++i) {
                  if (i % 50 == 0) {
                      deoptimizeAll();
                  }
                  if (i % 50 == 25) {
                      undeoptimizeAll();
                  }
              }
              done = true;
          } else {
              // This thread keeps doing new String() from a char array.
              while (!done) {
                  String str = $noinline$run0();
                  if (!str.equals("abc")) {
                      System.out.println("Failure 2! " + str);
                      System.exit(0);
                  }
              }
          }
      }
  }
  