Comment by mjevans

I disagree about "plus" in the JodaTime example. The month addition with corner cases did exactly what I expected because the whole library has been polished to "do what a normal human would do, most of the time". A normal human would not suspect Jan + 1 month, is any month other than Feb. However I suspect, not even reading the documentation, if it were fed 30 or 31 days, rather than '1 month', it would also do exactly that, and mostly give dates in March.