Actually, correctly read xs:date from XML isn't easy task.
Let's investigate how to do it whith famous JodaTime
There is built in formatter for xs:datetime:
However, there is not formatter for xs:date - hopefully we can build next custom formatter to handle this situation:
It works correcly in the most of cases, but according to standart, xs:date can have leading '-'. To hadle this situation, just add two more formatter with leading '-', and it'll work properly