code: @Deprecated
      public void setAccessExpires(long timestampInMsec) {
          checkUserSession("setAccessExpires");
          synchronized (this.lock) {
              accessExpiresMillisecondsAfterEpoch = timestampInMsec;
              lastAccessUpdateMillisecondsAfterEpoch = System.currentTimeMillis();
              sessionInvalidated = true;
          }
      }
docs: Set the current session's expiration time (in milliseconds since Unix
  epoch), or 0 if the session doesn't expire.
  <p/>
  This method is deprecated.  See {@link Facebook} and {@link Session} for more info.
  
  @param timestampInMsec
  - timestamp in milliseconds