code: public static Map/*< String, SharedFlowController >*/ getSharedFlows( HttpServletRequest request )
      {
          Map/*< String, SharedFlowController >*/ sharedFlows = ImplicitObjectUtil.getSharedFlow( request );
          return sharedFlows != null ? sharedFlows : Collections.EMPTY_MAP;
      }
docs: Get the a map of shared flow name to shared flow instance, based on the names defined in the
  {@link org.apache.beehive.netui.pageflow.annotations.Jpf.Controller#sharedFlowRefs sharedFlowRefs} attribute
  of the {@link org.apache.beehive.netui.pageflow.annotations.Jpf.Controller &#64;Jpf.Controller} annotation on the
  <strong>current page flow</strong>.
  
  @param request the current HttpServletRequest, which is used to determine the current page flow.
  @return a Map of shared flow name (string) to shared flow instance ({@link SharedFlowController}).