Problem still there, Please Help me, it is urgent, thanks a lot.

Question

I still can't solve my problem, now I will try to figure out the problem with less codes.
I just try to extends AbstractTableModel, and all my data is saved in a Vector, when I try to insert a blank row into the table, it deadlocked. I found the data I insert is ok, the problem is the fireTableRowsInserted.
here is some code of it:
public void insertRow() {
ToDoItem insert_item=new ToDoItem("", "",new GregorianCalendar());
data.add(insert_item);
System.out.println(insert_item.toDebugString());
//data is ok here
fireTableRowsInserted(0,0);
//program deadlock??????
here is some of the ToDoList:
public class ToDoList implements ToDoRepository {
private Vector theList = null;
     public boolean add( ToDoItem newItem ) {
     return getTheList().add( newItem );
Here is some of the ToDoItem:
public class ToDoItem {
     protected String name = null;
     protected String description = null;
     protected GregorianCalendar creationDate = null;
     protected GregorianCalendar dueDate = null;
     // START constructors -----------------------------
     public ToDoItem() {
          this( "", "", null );
     public ToDoItem( String newName, String newDescription, GregorianCalendar newDueDate ) {
          name = newName;
          description = newDescription;
          dueDate = newDueDate;
          creationDate = new GregorianCalendar();

Answer 1

I have used JTable and DefaultTableModel many times in the past, and I have NEVER invoked fireTableRowsInserted() explicitly. This method is invoked automatically, so you dont have to call it yourself.
That is your problem. Dont extend AbstractTableModel, use DefaultTableModel instead, or extend from DefaultTableModel and override the methods you need to handle data. Do not alter any methods that are involved with event handling. The DefaultTableModel takes care of events for you.
SAF