Java SE (Java Platform, Standard Edition)

I've got 6 columns and dynamically populate the table cells from a file. That worked fine.
Now I implemented
<code>
.. extends JPanel implements TableModelListener {
...
table.getModel().addTableModelListener(this);
..

}
public void tableChanged(TableModelEvent e) {
..

}

// since I do not know the size prior loading the data I insert new row with each record
inRow.insertRow(newRow,new Object[]{""});

</code>


and the line ?table.getModel().addTableModelListener(this);? gives me this error:
?java.lang.ArrayIndexOutOfBoundsException: -1?. If I remove the line it works fine again.

If I would not get the error before implementing the Listener what then does have the Listener to do with Array_Indexing?