Issue #6821: workaround to resolve IDEA vioaltion 'Incompatible types. Required: string. Actual: null.' and let Travis not fail build
Issue #6821: workaround to resolve IDEA vioaltion 'Incompatible types. Required: string. Actual: null.' and let Travis not fail build

romani/checkstyle,rnveach/checkstyle,checkstyle/checkstyle,romani/checkstyle,romani/checkstyle,romani/checkstyle,rnveach/checkstyle,checkstyle/checkstyle,romani/checkstyle,checkstyle/checkstyle,rnveach/checkstyle,checkstyle/checkstyle,checkstyle/checkstyle,checkstyle/checkstyle,rnveach/checkstyle,romani/checkstyle,rnveach/checkstyle,rnveach/checkstyle