The fire method of event source shoud contains throws statement if the
appropriate method of the listener can thow exception. Otherwise in the
generated code there is error announcing uncatched exception.
Example: 

private void 
fireVetoableChangeListenerVetoableChange(java.beans.PropertyChangeEvent event) {
  if (vetoableChangeListener == null) return;
  vetoableChangeListener.vetoableChange(event);
}

The vetoableChange(event) throws the PropertyVetoException so the generated code
should look like this:


private void
fireVetoableChangeListenerVetoableChange(java.beans.PropertyChangeEvent event)
throws java.beans.PropertyVetoException {

        if (vetoableChangeListener == null) return;
        vetoableChangeListener.vetoableChange(event);
    }