<nested:nest property="nestedEPlanDet">
        <nested:iterate property="planSem">
                <nested:text property="AD_STAVKA"> <!--облом тут!!!! -->     </nested:iterate>
        </nested:nest> 


// Классы

 public   class  ActionFormEPlan  extends  ValidatorActionForm {
     private   Long  ID_PLAN_LIST;
     private  Integer KOD_GEN;
     private  EPlanDet nestedEPlanDet;

  .... getters and setters ..... 



 public   class  EPlanDet  implements  Serializable {
     private   Long  ID_PLAN_DET;
     private  Set planSem =  new  LinkedHashSet(); // collection из EPlanSem 

  ... getters and setters ....



// Собственно класс самый нижний в иерархиии ....
 public   class  EPlanSem  implements  Serializable {
     private  EPlanSemCompId semId;
     private  Integer AN_WEEK;
     private   Double  AH_LECT;
     private   Double  AH_LAB;
     private   Double  AH_PRAKT;
     private   Double  AH_KSR;
     private  Integer IS_EKZ;
     private  Integer IS_ZACH;
     private  Integer IS_KURSRAB;
     private  Integer IS_KURSPROECT;
     private   Double  AD_STAVKA;
     private  String temp;


  ... getters and setters ....