Vaadin 8 Bind datefield

I create one form with a datefield and bind with my property LocalDate in my Bean

binderProtocolo.bind(dataDocumento, "dataDocumento");

the bind works fine. but I my user inpt 33 in the date field, and I validate my binder he return valid = true, and not a invalid date (he dont bind and is not required but I need to return a error because the date are not valid) how can I fix this?


Dear Fabio,

can you please provide some minimal sample code for us to reproduce the issue?