multiselect

<div id="mainTableDiv">
                <select name="input.submittedValues" id="valuesList" multiple="multiple">
                    <%
                        try {
                            List<Object[]> list = null;
                            List<Object[]> list1 = null;
                            List<Object[]> list2 = null;
                            testID = request.getParameter("testId") == null ? "" : request.getParameter("testId");
                            subjectName = request.getParameter("subNM");
                            System.out.println("testId in TestParticipant.jsp page is==" + testID + "subjectName=" + subjectName);
//                            if ("searchParticipant".equals(request.getParameter("goForSearch"))) {
                            //System.out.println("insode the if (searchParticipant(search)" + request.getParameter("search"));
                            String serItem = request.getParameter("goForSearch") == null ? "" : request.getParameter("goForSearch");
                            System.out.println("inside the if (searchParticipant(search)" + serItem);
                            if (testID != "" && serItem == "") {
                                list = details.getParticipantDetails(testID);
                                list1 = list;
                                System.out.println("list in singleparameter method=inside testID !=  && serItem ====" + list.size());
                            } else {
                                String serName = request.getParameter("search") == null ? "" : request.getParameter("search");
                                list = details.getParticipantDetails(serName, testID);

                            }
                            //list = details.getParticipantDetails(serItem, testID);
                            System.out.println("list in singleparameter method=before if block==" + list.size());
                            int sl = 1;
                            if (!list.isEmpty()) {

                                for (Object[] obj : list) {
                                    //System.out.println("hello block"+ obj[0].toString());
                                    String id = obj[0].toString();
                                    String nickName = obj[1].toString();
                                    String email = obj[2].toString();
                                    String userId = obj[3].toString();
                                    participantName = nickName + " ( " + email + " )";

                    %>
                    <option value="<%=sl%>" selected=""><%=participantName%></option>
                    <input type="hidden" name="hdnSeekerPartyId<%=sl%>" id="hdnSeekerPartyId<%=sl%>" value="<%=id%>"/>
                    <input type="hidden" name="hdnSeekerUserId<%=sl%>" id="hdnSeekerUserId<%=sl%>" value="<%=userId%>"/>
                    <input type="hidden" name="hdnParticipantName<%=sl%>" id="hdnParticipantName<%=sl%>" value="<%=participantName%>"/>
                    <% sl++;
                                }
                                //}
                            }
                        } catch (Exception e) {
                            //System.out.println("inside the catch of try ...." + e.getMessage());
                            //e.printStackTrace();
                        }
                    %>
                </select>
            </div>