RFR 8141526: Allow to collect stdout/stderr from the FinalizationRunner even before the process returns

[Dmitry Samersoff]

Jaroslav,

Looks good for me.

PS: I found a bug in canPtraceAttachLinux not related to your changes -
it's probably my mistake:

 181         if (userName.equals("root")) {
 182             return true;
 183         }

shouldn't be there.

Could you file a separate CR and assign it to me?

-Dmitry

On 2015-11-06 19:11, Jaroslav Bachorik wrote:
> [wider audience included]
> 
> Please, review the following test change
> 
> Issue : https://bugs.openjdk.java.net/browse/JDK-8141526
> Webrev:
> top> http://cr.openjdk.java.net/~jbachorik/8141526/webrev.00
> hotspot> http://cr.openjdk.java.net/~jbachorik/8141526/webrev.00/hotspot
> jdk> http://cr.openjdk.java.net/~jbachorik/8141526/webrev.00/jdk
> 
> After the fix for https://bugs.openjdk.java.net/browse/JDK-8135188 we
> are not able to get the debug info about the run of the launcher
> FinalizationRunner application in case it gets stuck and harness times
> out. This is because the stdout/err of the application started via
> ProcessTools.executeProcess() is collected only after the application
> has exited.
> 
> The solution is to use ProcessTools.startProcess() and consume the
> application stdout/err in a streaming mode. Because this method has only
> been available in the 'jdk' version of ProcessTools and not in the
> 'hotspot' one I decided to merge both of those versions and place the
> merged version into the shared location 'test/lib/share/classes/'.
> During this I decided to change the package for the shared ProcessTools
> class to be 'jdk.test.lib.process' to be more in line with the way this
> shared library is structured. I had to move few other lib classes
> required by ProcessTools to the shared lib as well. All the moved lib
> classes have been marked as deprecated in their original location.
> 
> 
> Thanks,
> 
> -JB-
> 


-- 
Dmitry Samersoff
Oracle Java development team, Saint Petersburg, Russia
* I would love to change the world, but they won't give me the sources.