Please don’t have a method named plusIshRoundCeiling() in a library that “might” be used for years in lots of projects :) The plus() one is almost there and you can easily explain the ugly bits in javadocs (with lots of warnings around it so that it sticks out and is addressed hopefully in some next convenient cycle)
I was trying to be funny here! There is lots of room between "plus", which I think is misleading, and the kitchen sink name you quote. Although it depends on how serious the problems were, in this case I'd pick something shorter that still suggested rough edges.
plusIshRoundCeiling() forces the reader to look at the javadocs to understand the edge cases, and in fact it serves as a reminder that there even are any edge cases.
I did’n quite intended to sound as if I think it would be unacceptable but the method name sounded too comical to me to be honest. Almost as if the intention is to say this method is a bit of a joke don’t use it please.
Maybe move() might work better here or moveToCalendarNearest() or something to flag up that in certain cases you need to be extra careful as mentioned in the article.
It is really hard to get this right and personally I would be flagging it up in javadocs.
