Issue #12133: Fix 'IllegalArgumentException: character to be escaped is missing' exception
Issue #12133: Fix 'IllegalArgumentException: character to be escaped is missing' exception

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