Inconsistent view object result set

Question

(1)In JSP front-end, I have the following code:
<%
ComUtil c = new ComUtil();
String sAppConfig = c.getAppConfigStr();
%>
<jbo:ApplicationModule id="am" configname="<%=sAppConfig%>" releasemode="Stateless" />
// A datatag is put here to print out a combo box for user selection with all places defined in table
<MyTagLib:PrintSelectForAllPlaces strTagName="v_CheckPlace" strAmId="am" blnDisplayHyphen="false" />
<jbo:ReleasePageResources />
(2) The ComUtil.getAppConfigStr() code is as follows:
// Configurations parameters
String _cfPkg = "MyPkg"; // Configuration package name
String am  = cfPkg + ".MyAppMod"; // Fully-qualified application module name
String _cf  = "MyPkgAppModLocal"; // Configuration name for connection info
String IP_ADDR = "xxx.xxx.xx.xxx"; // x stands for number
String SID = "MySid";
String PORT = "xxx"; // x stands for number
/** Connection string used by front-end JSP for Jbo to obtain configuration name for
an application module **/
public String getAppConfigStr () {
// Create an instance of the application module by name, using local mode
String sAppConfigStr = am + "." + cf;
return sAppConfigStr;
(3) My data tag code:
public class PrintSelectForAllPlaces extends TagSupport {
public int doStartTag() {     
ViewMyPlacesRowImpl r = new ViewMyPlacesRowImpl();
ComUtil c = new ComUtil();
ApplicationModuleRef amRef = Utils.getAMRefFromContext(pageContext, strAmId);
ApplicationModule am = amRef.useApplicationModule();
JspWriter out = pageContext.getOut();
try {     
ViewObject vo = am.findViewObject("ViewMyPlaces");
if (vo != null) {
vo.executeQuery();
int j = 0;
out.println("<select name=" + strTagName + " " + strActionList + ">");
if (blnDisplayHyphen) {
out.println("<option value = '' selected>--</option>");
while (vo.hasNext()) {
r = (ViewMyPlacesRowImpl)vo.next();
String sPlaceCode = (String)r.getPlaceCode();
String sPlaceDesc = (String)r.getDescription();
out.print("<option value = '" + sPlaceCode + "' ");
System.out.println("sPlaceCode: " + sPlaceCode);
if (strDefaultValue != null) {
if (strDefaultValue.length() > 0) {
if (sPlaceCode.equals(strDefaultValue)) {
out.print("selected");
out.print(">");
out.print(sPlaceDesc);
out.println("</option>");
out.println("</select>");
} else {
out.println("View object not found! ");
} catch (JboException je) {
je.printStackTrace();
} catch (IOException ioe) {
ioe.printStackTrace();
return SKIP_BODY;
My question:
- When i run my jsp, sometimes 2 rows are retrieved, sometimes 3 row are retrieved, sometimes all are retrieved, which can be simulated by 'Refreshing' the jsp page. I feel quite upset as this affects my whole application seriously. Would anyone give me any idea about my case?
(I have tried to re-make and re-compile the project; synchronizing my table structure; and also tried vo.clearCache(); but still no use. Moreover, The retrieved resultset supposed to be a reference table which will not change frequently, which means that caching is not serious affected.)
My case is quite urgent to me because I am going to present my application to clients soon. In case of any ideas, please don't hesitate to let me know.
Thanks a lot for your replies!

Answer 1

REPOST ...
Thanks for replying!