JDK 1.4 beta comes with a way to memory-map files, and various
other I/O improvements (like poll(); see http://www.jcp.org/jsr/detail/51.jsp).
Chris Smith will have some nio benchmarks up on http://www.jlinux.org/
next week or so showing how well their nonblocking network I/O performs.
Sun is slowly getting their act together on the I/O front with java.
Still, the competition from C# and for that matter gcj will probably be
a good thing, keep 'em on their toes.
(Disclaimer: I served on the JSR-51 expert group, representing the linux
point of view, kinda.)
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