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I just added this validator to a Textfield:
TextField tf = new TextField("CUIL");
tf.addValidator(new LongRangeValidator("CUIL no válida 0 a " + Long.MAX_VALUE, 0L, Long.MAX_VALUE));
but is not allowing any positive number, no matter the value, always shows up the "!"Im using Vaadin 7.5.7 and upgraded to 7.6.2, but nothing changed