long getLongLittleEndian(byte[] array, int offset);

    void putLongLittleEndian(byte[] array, int offset, long value);
  }

  /**
   * The only reference to Unsafe is in this nested class. We set things up so that if
   * Unsafe.theUnsafe is inaccessible, the attempt to load the nested class fails, and the outer
   * class's static initializer can fall back on a non-Unsafe version.
   */