Fwd: java -version different on Win vs Cygwin

[Fredrik Öhrström]

Interesting. Could it be the 64 bit windows file system virtualization that slow down cygwin so much on 64-bit windows? Are other 32 bit applications as slow? 


//Fredrik 

----- peter.brunet at oracle.com skrev: 
> 
I think I found the answer here: 
> http://www.curlybrace.com/words/2010/12/17/console-and-cygwin-dont-show-all-files-on-64-bit-windows/ 
> 
> Quote: 
> This is because Cygwin bash and Console are 32-bit applications, and I’m running 64-bit Windows. With filesystem virtualization on Windows, when a 32-bit process attempts to access %SYSTEMROOT%\System32, it is redirected to %SYSTEMROOT%\SYSWOW64. Ironically named, System32 contains 64-bit applications, while SYSWOW64 contains 32-bit applications. 
> 
> These give the same version: 
> Win 7 DOS prompt: \Windows\SysWOW64\java -version 
> Cygwin prompt: /cygdrive/c/Windows/System32/java -version 
> 
> -------- Original Message -------- 
Subject: 	java -version different on Win vs Cygwin 
Date: 	Thu, 22 Mar 2012 09:30:45 -0500 
From: 	Pete Brunet <peter.brunet at oracle.com> 
Reply-To: 	peter.brunet at oracle.com 
To: 	build-dev <build-dev at openjdk.java.net> 
> 
> I get different versions when I do the following.  Why?

Win 7 DOS prompt: \Windows\System32\java -version
Cygwin prompt: /cygdrive/c/Windows/System32/java -version

Is that java.exe a stub that routes to a different java.exe?  How do I
control which java is activated?
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