@Override
  public void expire(boolean notify) {
    if (notify) {
      getOperatingRegion().destroy(getId(), this);
    } else {
      super.expire(false);
    }
  }
Return the <code>HttpSession</code> for which this object is the facade.
extensions/geode-modules/src/main/java/org/apache/geode/modules/session/catalina/DeltaSession.java