What is the primary development platform for OpenJDK HotSpot JVM?

[David Holmes]

On 15/12/2014 6:47 AM, Alex Yursha wrote:
> Many projects are firstly developed for one target platform and only afterwords ported to other platforms. I wonder if there exists such first target platform for HotSpot JVM or is it developed in parallel for different platforms?

Are you talking historically ie what was the first platform that hotspot 
ran on? (I think it was Windows but not 100% sure). Or do you mean 
currently are new features developed on one platform and then ported to 
the others? For this latter question typically new features are 
prototyped on the platform most accessible to the developer doing the 
work, but quickly ported to the other platforms - often only becoming 
visible to others once all platforms are supported.

David