/*
 * 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 Intraproc {
  void intraBad(IntraprocA o) {
    synchronized (this) {
      synchronized (o) {
      }
    }
  }

  void intraOk(IntraprocB o) {
    synchronized (this) {
      synchronized (o) {
      }
    }
  }

  void reentrantOk(IntraprocB b) {
    synchronized (this) {
      synchronized (b) {
        synchronized (this) {
        }
      }
    }
  }
}

class IntraprocA {
  void FN_intraBad(Intraproc o) {
    synchronized (this) {
      synchronized (o) {
      }
    }
  }
}

class IntraprocB {
  void intraOk(Intraproc o) {
    synchronized (o) {
      synchronized (this) {
      }
    }
  }
}