Confirm Dialog showing up multiple times

Confirm Dialog showing up multiple times

I have a confirm dialog inside a addListSelectionListener. This fires when
I select a row in the table. Then the confirm dialog appears and after I
click yes or no it keeps on appearing!
This is my code.
public Reference() {
initComponents();
fillTable();
jTable1.getSelectionModel().addListSelectionListener(new
ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
int prompt = JOptionPane.showConfirmDialog(null, "Are you sure
you want to Check Out this item?", "Warning",
JOptionPane.YES_NO_OPTION);
if (prompt == 0) {
String accessNo =
jTable1.getValueAt(jTable1.getSelectedRow(),
0).toString();
String query = "delete from reference where accessNo=" +
accessNo + "";
if (DB.executeNonQuery(query) > 0) {
JOptionPane.showMessageDialog(null, "Check out
Successfull!");
fillTable();
} else {
JOptionPane.showMessageDialog(null, "Check out Failed!");
}
}
}
});
}