Any news from JDK-8151981 in Java8 ?

[Remi Forax]

Hi Hannes,
it can also be Nashorn triggering too much deoptimizations creating a deoptimization storm.

Rémi

----- Mail original -----
> De: "Hannes Wallnöfer" <hannes.wallnoefer at oracle.com>
> À: "João Paulo Varandas" <joaovarandas at inpaas.com>
> Cc: nashorn-dev at openjdk.java.net
> Envoyé: Mardi 12 Décembre 2017 14:11:49
> Objet: Re: Any news from JDK-8151981 in Java8 ?

> Hi João,
> 
> this functionality is part of java.lang.invoke package, not Nashorn, so we can’t
> help you here.
> 
> The best place to ask about this would be the core-libs-dev mailing list.
> 
> Regards,
> Hannes
> 
> 
>> Am 11.12.2017 um 23:07 schrieb João Paulo Varandas <joaovarandas at inpaas.com>:
>> 
>> Hi guys!
>> 
>> We are also experiencing some odd issues here with setCallSiteTargetNormal.
>> https://bugs.openjdk.java.net/browse/JDK-8151981
>> 
>> Our cenario is:
>> 
>> - Web Application using Tomcat;
>> - 8 HTTP Threads;
>> - A single ScriptEngine for the whole application;
>> 
>> When a request hits the server, that request may be processed by a Nashorn
>> Script, this script is evaluated during runtime, run queries (Jdbc), and
>> return results (Maps and/or Collections) that are serialized to JSON before
>> being written to the response.
>> 
>> The problem is... sometimes 7 or more threads are getting stuck in the
>> setCallSiteTargetNormal and I have no clue why is that happening. Could you
>> guys help me out troubleshooting this? - Or, if there's a bug, what are the
>> recomended fixes I should do?
>> 
>> 
>> By the way, those are not freshly created ScriptEngines (which differ from
>> the normal issues related in the internet).
>> 
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