private Region<String, DeltaSessionInterface> getOperatingRegion() {
    // This region shouldn't be null when it is needed.
    // It should have been set by the setOwner method.
    return operatingRegion;
  }
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