Viritin Problem: screen goes off

Flow
1

Hi

My code:

public class tz1AbstractForm extends AbstractForm {

private static final long serialVersionUID = 1L;

@PropertyId("name")
private MTextField name = new MTextField("name");
private TextField filter = new MTextField("filtro").withInputPrompt("filter...");
private MButton save = new MButton("Salvar");

private Tz1JPAContainer1<ActorModel> actor = new Tz1JPAContainer1<>(ActorModel.class);

private MTable<ActorModel> list = new MTable<>(ActorModel.class)
        .withProperties("id", "name", "email")
        .withColumnHeaders("id", "Name", "Email")
        .setSortableProperties("name", "email")
        .withFullWidth()
        .setBeans(actor.dataSource().find(ActorModel.class,1)
        );

public tz1AbstractForm() {
    list.addMValueChangeListener(new MValueChangeListener<ActorModel>() {
        
        /**
         * 
         */
        private static final long serialVersionUID = 1L;

        @Override
        public void valueChange(MValueChangeEvent<ActorModel> event) {
            setEntity(event.getValue());
        }
    });
}

/* (non-Javadoc)
 * @see org.vaadin.viritin.form.AbstractForm#createContent()
 */
@Override
protected Component createContent() {
      list.setCaption("Teste");
      list.setSelectable(true);
      return new MVerticalLayout(
              filter,
              list,
              new MFormLayout(name),
              save
              ).withFullWidth().withFullHeight();
}

}

In the first run, mText is filled with the contents of JTable. But the second time giving a click, the whole screen goes off and checked by debug that occurs on that line: CoyoteOutputStream.flush() line: 111.

But I do not have access. What could be wrong?First click in Mtable, ok, MTextField

thanks