code: public void reinitialize( PageFlowController pfc )
      {
          if ( _mapping == null && _mappingPath != null )
          {
              ModuleConfig mc = pfc.getModuleConfig();
              assert mc != null : "no ModuleConfig found for " + pfc.getClass().getName();
              _mapping = ( ActionMapping ) mc.findActionConfig( _mappingPath );
          }
          
          if ( _forward != null && _forward instanceof Forward )
          {
              ( ( Forward ) _forward ).reinitialize( pfc );
          }
      }
docs: Reinitialize the stored ActionMapping and PageFlowController objects.  These are transient, and will be lost if
  you place this object in the session, and then retrieve it after a session failover has occurred (i.e., after
  this object has been serialized and deserialized).