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Have you ever seen an application in Java that actually works in more than one system without any env-specific code at all and does not behave in a slightly incompatible way? I haven't. (apart from toy apps which exist only to prove the opposite)

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Fair enough. I did just read this - "Various parts of Hadoop are executed using shell scripts that will only work on a Linux shell.". Sounds like you need Cygwin (currently). Guess those are the bits that will be ported.

> apart from toy apps which exist only to prove the opposite

They also prove it's possible to write portable code in Java. ;-)

The same logic says that it is possible to write portable C programs. ;)

That's nothing! It's even possible to write portable C# programs. Now that's an accomplishment. ;-)

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