Add or remove elements from a list attached to session duplicated the size

Question

Hi All,
I have a jsp page that in there I'd like to show three columns in a table:
     <c:forEach var="thesaurus" items="${sessionScope.collection.thesaurusList}">
       <tr>
                    <td class="check"><input type="checkbox" name="word" value="${thesaurus.key}" ></td>
                    <td><c:out value="${thesaurus.key}"></c:out></td>
                    <td>${ts:getThesuaursRelationDescription(thesaurus.relation)}</td>
                    <td>${ts:getThesaurusSynonymsDescription(thesaurus.synonymsList)}</td>
          </tr>
       </c:forEach>thesuaurList is an ArrayList that holds object of type Thesaurus class ( a simple java bean). collection object is attached to session via a servlet.
ts are tag that i have defined in my tag library.getThesuaursRelationDescription and getThesaurusSynonymsDescription are two static method and there's no problem with any of these classes.
It all works ok but when I refresh the page, the list size gets duplicated each time and i can't see why? why items are added again to my list? Is that because i have collection object as an session attribute?
If i replace the above code with jsp scriptlet it works fine:
<%
                Collection collection = (Collection) session.getAttribute("collection");
                List< Thesaurus> thesauruses= collection.getThesaursList();
                int i = 0;
                for (Thesaurus thesaurus: thesauruses)
                %>
                 <tr>
                    <td class="check"><input type="checkbox" name="word" value=<%=thesaurus.getKey()  %> ></td>
                    <td><%=thesaurus.getKey()%></td>
                    <td><%=ThesaurusUtil.getThesuaursRelationDescription(thesaurus.getRelation())%></td>
                    <td><%=ThesaurusUtil.getThesaurusSynonymsDescription(thesaurus.getSynonymsList())%></td>
                </tr>
                <%
                %>Thanks in advance.

Answer 1

Gr8 not a problem why do you use a composite view pattern.
--->In that case make use of Proper patterns in your design before forwading it to a view.
---->Use a Public JSP Statically include JSP's in WEB-INF folder using static page include which happens at compile time.
REGARDS,
RaHuL