Web-Based Java Compiler Service
TheSync writes "Ronald Tschalär has set up a Web-based Java compiler service. Just type in your source file names and the JDK you'd like to compiler them with (1.1.8,1.2.2,1.3.1 or 1.4.1), and hit "compile." This makes getting started with Java easier, since you don't have to get the whole JDK."
The obvious solution is to provide some kind of download manager (as Netscape and Real now do). Or organize the Java SDK into smaller independent packages. Or allow outsiders to start up mirror sites overseas. Or... But life at Sun is full of politics and bureaucracy (which is why I no longer work there), and getting even the simplest solution in place is like pulling teeth.
What's wrong with using jikes to compile your programs? It's not even 1 mb, it just needs rt.jar from the JRE.
jikes website
The JRE includes the same huge libraries that the JDK has, so there isn't much point in downloading the JRE on its own anyway
Of course, in the real world, bugs happen, and people need to use old versions of the JDK to work around them. But anybody who's working at that level is a sophisticated Java programmer, not a newbie. Such a person does need the whole JDK!