Urgently need help inserting nodes into TreeTable

Question

Hi, I've got the following problem -
I use the model that retrieves data from Oracle Database, and it works ok, but when I try to insert new node dynamically, I get very strange reaction of TreeTable and I've been looking where the problem for several hours and I can't find it.
When I insert the new node I see that the new node is inserted BUT the information in the table doesn't match to the one I've inserted - the node's name is empty and the information in the table just the same as the previous element has.
I use TreeTable built on the exmple from Sun.
To notify the TreeTable about changes I use
  public void nodesChanged(){
        TreePath path = treeTableProcess.getTree().getPathForRow(1);
        Object newChild[]= processMonitorModel.newNode();
        int[] ind = new int[newChild.length];
        for (int i=0;i<newChild.length;i++) {
            ind[i] = i;
        processMonitorModel.fireTreeNodesInserted(this,
                                                  path.getPath(),
                                                  ind,
                                                  newChild);
    }I know that TreePath is ok, I checked it out, my node object contains information, the method fireTableDataChanged() get called but the node that I see doesn't contain the information of the node I inserted.
Thank you in advance!
Yuri, Germany

Answer 1

This is the error I get
Error starting at line 1 in command:
INSERT INTO PROJECT_CONSULTANT
(PROJECT_ID, CONSULTANT_ID, ROLL_ON_DATE, ROLL_OFF_DATE, TOTAL_HOURS)
VALUES
(1, 100, '06/15/2009', '12/15/2009', 175.00)
Error report:
SQL Error: ORA-01843: not a valid month
01843. 00000 - "not a valid month"
*Cause:   
*Action: