I have been updating all the pom.xml's in master. They were pointing to unitprot-kraken from 2015.02, which isn't available anymore. I have changed the version to RELEASE, which is pointing to the latest release of it. Anyway, we need to change this on some point to the new JAPI: http://www.ebi.ac.uk/uniprot/japi/index.html
from @tschaka1904