I can also confirm this bug is still occurring on 4.1.7-FINAL
An alternative temporary solution is to use the JPA columnDefinition, however its restricting your code to MySQL until this is solved.
@Column(columnDefinition = "BIT")
Various other users are reporting this too in other places: http://stackoverflow.com/questions/8667965/found-bit-expected-boolean-after-hibernate-4-upgrade
I can also confirm this bug is still occurring on 4.1.7-FINAL
An alternative temporary solution is to use the JPA columnDefinition, however its restricting your code to MySQL until this is solved.
@Column(columnDefinition = "BIT")
Various other users are reporting this too in other places:
http://stackoverflow.com/questions/8667965/found-bit-expected-boolean-after-hibernate-4-upgrade