Remove METHOD_ENTRY and METHOD_EXIT events from needed_capabilities in JDWP Agent

[Alan Bateman]

On 20/06/2017 20:45, Ronald Servant wrote:
> Looking at the Agent_OnLoad() code in debuginit.c of libjdwp, I see 
> that both the METHOD_ENTRY and METHOD_EXIT are listed as required, but 
> I don't see where they are ever enabled in the agent.
> In the J9 JVM making it possible to enable these events has severe 
> performance penalties. Since the events are not enabled in the JDWP 
> agent, simply reserved, we were hoping you'd be open to removing the 
> reservation of the capabilities.
>
If the JDWP agent never enables these events then it shouldn't need to 
obtain the capabilities. I have a vague recollection that they are 
enabled when single stepping, are you sure this isn't the case? Have you 
run the tests with without enabling the capabilities?

-Alan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openjdk.java.net/pipermail/serviceability-dev/attachments/20170621/7b43924d/attachment.html>