16 Java Compilers

I started this list just for my own information, and I put it on Web page because I needed the links. But lots of people have found the list to be useful, so I keep it as current as I possibly can. There are actually more than 16 compilers here because some of these links connect you to multiple versions of Java compilers.
I have included the compilers here in no particular order (except that maybe and some have very few. I have something to say about all of them. Whether there are more or less commentary is only because I happen to know more about some of them.
I do not recomend a compiler or an IDE. Everybody has their own personal preference. Me? I use the latest command line version from Sun, but I'm kind of old fashioned.

java

Looking for a Java compiler? Example Java program? Do you have some sort of strange problem that keeps your program from running? The answer could be here