/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

class MainMethod {

  static Object monitorA, monitorB;

  public static void main(String args[]) {
    Thread t =
        new Thread(
            new Runnable() {
              @Override
              public void run() {
                synchronized (monitorA) {
                  synchronized (monitorB) {
                  }
                }
              }
            });
    t.start();

    synchronized (monitorB) {
      synchronized (monitorA) {
      }
    }
  }
}