Combo Box com spring + thymeleaf erro
org.springframework.beans.NotReadablePropertyException: Invalid property ‘protocolo.documento’ of bean class [br.ueg.posse.speed.system.model.Protocolo]: Bean property ‘protocolo.documento’ is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?
at org.springframework.beans.AbstractNestablePropertyAccessor.getPropertyValue(AbstractNestablePropertyAccessor.java:619) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
http://pastebin.com/zMjDTwzM //protocolo.java
http://pastebin.com/TgBjferY //novoProtocolo.html
http://pastebin.com/M3dWWJaY //ProtocoloController.java