part of WELD-1398 - add private constructor in utility classes to hide the default one
part of WELD-1398 - remove MultipleStringLiterals (+ add switch default)
part of WELD-1398 - make Exceptions immutable
part of WELD-1398 - remove magic numbers
part of WELD-1398 - skip maven-checkstyle-plugin in weld-servlet-test-base