[8u-dev]: Request for Review and Approval: 8075484: SocketInputStream.socketRead0 can hang even with soTimeout set

[Vyom Tewari]

Hi Christoph,

As this is not direct backport what about using the existing function 
"JVM_CurrentTimeMillis(env, 0);" instead of "NET_GetCurrentTime() ". 
When i did this code change i did not know that we already have this.If 
you use the existing one then you can simply remove the 
"NET_GetCurrentTime() "  from your code change.

Thanks,

Vyom


On Thursday 29 December 2016 03:07 PM, Langer, Christoph wrote:
>
> Hi,
>
> please review (and eventually approve) the change for downporting 8075484.
>
> Webrev for 8u-dev: 
> http://cr.openjdk.java.net/~clanger/webrevs/8075484.8udev/ 
> <http://cr.openjdk.java.net/%7Eclanger/webrevs/8075484.8udev/>
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8075484 
> <https://bugs.openjdk.java.net/browse/JDK-8075484>
>
> JDK9 Change: http://hg.openjdk.java.net/jdk9/dev/jdk/rev/af17b6bc08dd
>
> JDK9 Review Thread(s):
>
> http://mail.openjdk.java.net/pipermail/net-dev/2016-August/010171.html
>
> http://mail.openjdk.java.net/pipermail/net-dev/2016-September/010201.html
>
> We had customer reports who ran into that issue with Java 8. So this 
> should be downported.
>
> The problem is, that the fix does not apply to Solaris as Solaris 
> needs some calls into hotspot. This is because in JDK 8 the flag for 
> interruptible IO is still supported (though deprecated). But I think 
> it is still worthwile to bring this down for the other platforms which 
> I’m proposing with my changeset. So I extracted the new code manually 
> from the JDK9 changeset and made it fit into JDK8 coding.
>
> Thanks & Best regards
>
> Christoph
>