I find it disappointing to see such an discussion around a Java quirk voted up here. These things are in every Java book since at least 6 years, and Java has no

I find it disappointing to see such an discussion around a Java quirk voted up here. These things are in every Java book since at least 6 years, and Java has not gained in interestingness since. Also, Eclipse tells you that with a warning if you want. Sorry to be so negative.