Validation of Jdatechooser

Question

I need to validate three dates that are like JDateChooser. These dates are: date of birth, date of admission and date of dismissal.

The date of birth may not be longer than the date of admission or longer than the date of dismissal.

The date of resignation may not be less than the date of admission.

I want to validate the date of admission the moment the user fills in, an alert window will be triggered if that date is less than the date of birth. And the same happens between the date of admission and the date of dismissal.

I’ve tried this validation with an if - Else, but it only works for two cases at once, or just one. And I used the event mouseEntered and set a minimum value for the dates. But I have this error

Exception in thread "AWT-Eventqueue-0" java.lang.Illegalargumentexception

. Would anyone have a suggestion ? Thank you.

Attempt 1

if(dataAdm().getDate().after(dataNasc.getDate())){
      if(dataDem().getDate().after(DataAdm.getDate())){
          mensagem de alerta;
      }
    }

Attempt with the event propertyChange and mouseClicked in the field of admission date.

if(dataAdm().getDate().after(dataNasc.getDate())){
    mensagem de alerta;
}

Screen print

actionPerformed

 validacao = new ValidaSuper();
        if (validacao.recebeDadosObrigatorios(nome.getText(), cpf.getText(), orgaoExp.getText(),
                funcao.getText(), email.getText())) {
            if (validacao.validaDadosObrigatorios()) {
                if(dataAdm.getDate().after(dataNasc.getDate())){
                    if(dataDem.getDate().after(dataAdm.getDate())){
                        setDadosObrigatorios();
                        setDados();
                        idCoord = map.insereCoordenador(coord);
                        map.insereTelefoneCoordenador(tel, idCoord);
                        JOptionPane.showMessageDialog(this, "Coordenador(a) inserido(a) com sucesso !!!");
                        limparCampos();
                    }
                }
            }  
        } 
    }catch (UnsupportedEncodingException ex) {
        Logger.getLogger(CadastraCoordenador.class.getName()).log(Level.SEVERE, null, ex);
    }catch (SQLException ex) {
        Logger.getLogger(CadastraCoordenador.class.getName()).log(Level.SEVERE, null, ex);
    }