content: /*
   * Copyright (C) 2014 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 {
      public static void main(String[] args) {
          Object o = new Object();
          // Generate a hashcode and put it in the lock word.
          int hashOrig = o.hashCode();
          int hashInflated = 0;
          int hashSystemOrig = System.identityHashCode(o);
          int hashSystemInflated = 0;
          // Inflate the monitor to move the hash from the lock word to the Monitor.
          synchronized (o) {
              hashInflated = o.hashCode();
              hashSystemInflated = System.identityHashCode(o);
          }
          // Make sure that all the hashes agree.
          if (hashOrig != hashInflated || hashOrig != hashSystemOrig ||
              hashSystemOrig != hashSystemInflated) {
              System.err.println("hash codes dont match: " + hashOrig + " " + hashInflated + " " +
              hashSystemOrig + " " + hashSystemInflated);
          }
          System.out.println("Done.");
      }
  }
  
  
  