RFR 8u backport: 8077608: [TESTBUG] Enable Hotspot jtreg tests to run in agentvm mode

[Muneer Kolarkunnu]

Hi David and Stuart,

I recently reported one bug[1] for the same issue and listed which all test cases are failing with agentvm.
I tested in Oracle.Linux.7.0 x64.

[1] https://bugs.openjdk.java.net/browse/JDK-8180904

Regards,
Muneer

-----Original Message-----
From: David Holmes 
Sent: Thursday, June 01, 2017 7:04 AM
To: Stuart Monteith; hotspot-dev Source Developers
Subject: Re: RFR 8u backport: 8077608: [TESTBUG] Enable Hotspot jtreg tests to run in agentvm mode

Hi Stuart,

This looks like an accurate backport of the change.

My only minor concern is if there may be tests in 8u that are no longer in 9 which may not work with agentvm mode.

What platforms have you tested this on?

Thanks,
David

On 31/05/2017 11:19 PM, Stuart Monteith wrote:
> Hello,
>    Currently the jdk8u codebase fails some JTreg Hotspot tests when 
> running in the -agentvm mode. This is because the ProcessTools class 
> is not passing the classpath. There are substantial time savings to be 
> gained using -agentvm over -othervm.
> 
> Fortunately, there was a fix for jdk9 (8077608) that has not been 
> backported to jdk8u.  The details are as follows:
> 
> http://mail.openjdk.java.net/pipermail/hotspot-dev/2015-April/017937.h
> tml
> https://bugs.openjdk.java.net/browse/JDK-8077608
> http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/af2a1e9f08f3
> 
> The patch just needed a slight change, to remove the change to the 
> file "test/compiler/uncommontrap/TestUnstableIfTrap.java" as that test 
> doesn't exist on jdk8u.
> 
> My colleague Ningsheng has kindly hosted the change here:
> 
>      http://cr.openjdk.java.net/~njian/8077608/webrev.00
> 
> 
> BR,
>     Stuart
>