I was a bit puzzled with java-hamcrest as well. It looks like we should exclude it: (see https://github.com/hamcrest/JavaHamcrest/issues/183#issuecomment-441154016 and http://hamcrest.org/JavaHamcrest/distributables#upgrading-from-hamcrest-1x )
Felix, would you please check if adding org.hamcrest:hamcrest:2.1 and org.hamcrest:hamcrest-library:2.1 solves the problem? Vladimir
