On 1/8/14 6:48 PM, Chris Hegarty wrote:
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?

Hopefully yes - my experiments show that it's cleared at the
first iteration.

Do you think I should add a counter - or remove that call to
System.gc() altogether?

This was just a means of triggering 8031068 and making the test
fail more consistently (it just validates that this is the
right fix for 8031068).

-- daniel


-Chris

On 8 Jan 2014, at 17:34, Daniel Fuchs <daniel.fu...@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

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