Confuse about using commitchanges

Question

dear friends....i have some problem using commitchanges methode in netbeans 5.5.1 using oracle database 10g. the problems :
1. when i inserting first record to database, it's still okay, but when i inserting
the second record, netbeans replace the first record that i insert with the
second record twice.
my code looks like :
public String addBTN1_action() {
//getSessionBean1().setrk(rk);
getSessionBean1().setMode("ADD");
textField1.setValue("");
textField3.setValue("");
textField4.setValue("");
textField5.setValue("");
textField6.setValue("");
getBody1().setFocus("form1:textField1");
return null;
public String saveBTN1_action() {
try {
if(getSessionBean1().getMode().trim().equalsIgnoreCase("ADD")){
getSessionBean1().getTestRowSet().setConcurrency(ResultSet.CONCUR_UPDATABLE);
String test1 = textField1.getText().toString();
String test2 = textField3.getText().toString();
String test3 = textField4.getText().toString();
String test4 = textField5.getText().toString();
String test5 = textField6.getValue().toString();
RowKey rk = testDataProvider.appendRow();
testDataProvider.setCursorRow(rk);
testDataProvider.setValue("ID", getSessionBean1().getrk(), test1);
testDataProvider.setValue("CUSERID", getSessionBean1().getrk(), test2);
testDataProvider.setValue("CKDUNITKEY", getSessionBean1().getrk(), test3);
testDataProvider.setValue("CNOPO", getSessionBean1().getrk(), test4);
//testDataProvider.setValue("DTGLPO", getSessionBean1().getrk(), v_dtgllhr);
testDataProvider.setValue("NPOGROSS", getSessionBean1().getrk(), test5);
testDataProvider.commitChanges();
testDataProvider.refresh();
log("update: changes committed");
info("Update committed");
} catch(Exception e) {
log("update: cannot commit changes ", e);
error("Cannot commit changes: " + e.getMessage());
return null;
i would be appreciate if anyone could help me, thanks before
null

Answer 1

Everything here : https://www.sdn.sap.com/irj/sdn/adobe
Summary: installed with NW7.0, you must configure it. See config guide how to check it.