public void actionPerformed(ActionEvent e) {
if (paramTable.isEditing()) {
TableCellEditor cellEditor = paramTable.getCellEditor(paramTable.getEditingRow(), paramTable
.getEditingColumn());
cellEditor.stopCellEditing();
}
tableModel.addNewColumn(getUserColName(tableModel.getColumnCount()), String.class);
tableModel.fireTableDataChanged();