checkstyle-tester: do not fail if analysed project does not contain Java files because no report is present then
checkstyle-tester: do not fail if analysed project does not contain Java files because no report is present then

rnveach/contribution,checkstyle/contribution,checkstyle/contribution,rnveach/contribution,rnveach/contribution,checkstyle/contribution,checkstyle/contribution,checkstyle/contribution,rnveach/contribution,rnveach/contribution,rnveach/contribution,checkstyle/contribution,rnveach/contribution,checkstyle/contribution