> On Feb 20, 2015, at 19:34, David DeHaven <david.deha...@oracle.com> wrote:
>> 
>> Please excuse my ignorance, but
>> 
>> Why?
>> And what's the difference?
> 
> .dylib is the standard extension used by the dynamic loader on OSX, .jnilib 
> was originally used by Apples JRE specifically for JNI libraries and (I 
> believe) we’ve never really supported it except to allow legacy applications 
> to continue to work. We certainly no longer use it internally. For example, 
> there was a time (before the OSX port was done) when it was used in JavaFX. 
> When 7u6 was released and Oracle took over ownership of the OSX JRE, we 
> switched everything over.
> 
> There is no functional difference, the files are exactly the same except 
> there’s no guarantee that .jnilib will continue to be supported. And look at 
> the loading mechanism in jdk; loading a JNI lib will first attempt to load 
> using the .dylib extension then fall back on .jnilib for legacy support, so 
> there’s a (admittedly pretty small) performance consideration since it has to 
> do extra work to load a .jnilib library.

Thanks, David.

So just to recap: They both are identical in content, it's just the file 
extension that's different.

Cheers,

-hendrik

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