#1246 False positive from MissingBreakInSwitch
verify #1251 UnusedPrivateMethod false positives for boxing & unboxing arguments
Documentation: Extra closing-brace in suppress-warnings example
See: https://sourceforge.net/p/pmd/discussion/188192/thread/9ecda507/
#1250 Method attribute missing for some violations
verify #1249 Regression: UnusedPrivateMethod from 5.0.5 to 5.1.2