JDK 9 RFR for 8031068: java/util/logging/ParentLoggersTest.java: checkLoggers: getLoggerNames() returned unexpected loggers

[Chris Hegarty]

The cleanup looks fine to me, and the retaining of strong refs to the loggers.

Is the weak ref guaranteed to be cleared at some point?

-Chris

> On 8 Jan 2014, at 17:34, Daniel Fuchs <daniel.fuchs at oracle.com> wrote:
> 
> Hi,
> 
> Please find below a patch for a test bug:
> 8031068: java/util/logging/ParentLoggersTest.java:
>         checkLoggers: getLoggerNames() returned unexpected loggers
> 
> https://bugs.openjdk.java.net/browse/JDK-8031068
> 
> 
> <http://cr.openjdk.java.net/~dfuchs/webrev_8031068-jdk9/webrev.00/>
> 
> As usual - the issue is that the test creates loggers without
> keeping any strong reference - thus allowing for the possibility
> that they will be garbage collected too soon.
> 
> I managed to reproduce systematically by adding a call to
> System.gc() between the creation of the two loggers - and
> passing -Xcomp -server to the VM.
> With the fix the test no longer fails in that configuration.
> 
> best regards,
> 
> -- daniel