RFR [9]: 8034174 Remove use of JVM_* functions from java.net code

[Alan Bateman]

On 22/02/2014 14:03, Bernd Eckenfels wrote:
> Hm, I actually like to have that JVM_ abstraction layer. Looks like it is now replaced by NET_ in some parts, do we really want to remove it in others? (the JVM_IO_ERR beeing an obvious advantage)
>
Support for green threads went away when we moved to HotSpot back in JDK 
1.3 and since then there hasn't been any need for socket and other 
blocking operations to go through the JVM interface. The residual usage 
in the classic networking code has been because of Solaris interruptible 
I/O and that has been disabled by default since JDK 7. We removed the 
use of the JVM_ functions in other parts of the platform in JDK 7 so 
Chris's work is really just a continuation of this effort. Eventually it 
should be possible to just remove these functions from the JVM interface 
and this would be a welcome cleanup.

As regards a general porting/abstraction interface then it doesn't 
exist. The Host Porting Layering (HPI) bit rotted a long time ago and 
was eventually removed (several years ago). To date there hasn't been a 
big need for a replacement. There is certainly work that could be done 
to improve the portability in many areas, it just hasn't been a priority.

-Alan