StringValidatorissue

I have a use case like below:

TextField senrcv = new TextField("Sender/Receiver");
        senrcv.setMaxLength(11);
        senrcv.addValidator(new StringLengthValidator("send Error", 4, 11, true));
        senrcv.setRequired(false);

The problem is, when this field is empty, StringLengthValidator returns false and I see error. But, I'm saying that null value is OK, and field is not required.

First couple of lines fomr isValidValue method of StringLengthValidator

@Override
    protected boolean isValidValue(String value) {
        if (value == null) {
            return allowNull;
        }

But issue, value is empty string, not null, so it continue to the validation methods.

AM I missing something?

Would senrcv.setNullRepresentation("") help?

No, That doesnt work either.

Ah, you also need setNullSettingAllowed(true).