@Override
  public HttpSession getSession() {
    if (facade == null) {
      if (isPackageProtectionEnabled()) {
        final DeltaSession fsession = this;
        facade = getNewFacade(fsession);
      } else {
        facade = new DeltaSessionFacade(this);
      }
    }
    return (facade);
  }
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