[testbug] RFR: 8217353: java/util/logging/LogManager/Configuration/updateConfiguration/HandlersOnComplexResetUpdate.java fails with Unexpected reference: java.lang.ref.WeakReference

[Lance Andersen]

Morning Daniel,

The change seems like a good approach 

Best
Lance
> On Jan 24, 2019, at 6:42 AM, Daniel Fuchs <daniel.fuchs at oracle.com> wrote:
> 
> Hi,
> 
> Please find below a fix for:
> 
> 8217353: java/util/logging/LogManager/Configuration/updateConfiguration/HandlersOnComplexResetUpdate.java 
>          fails with Unexpected reference: java.lang.ref.WeakReference
> https://bugs.openjdk.java.net/browse/JDK-8217353
> 
> webrev:
> http://cr.openjdk.java.net/~dfuchs/webrev_8217353/webrev.00/
> 
> This test has been seen failing from time to time with an
> exception originating from the finally { } clause of the
> main method. The suspicion is that this exception in fact
> hides another exception previously thrown in the try { }
> body.
> 
> This is only a fix in so far that it will ensure that the
> real exception - if any - is added to the suppressed list
> of the secondary exception so that we eventually see it in
> the log.
> 
> As to why the test failed in the first place - I am not quite
> sure, but it might be due to -Xcomp or some other combination
> of options preventing the WeakReference to be cleared within
> the time (and number of gc() calls) expected by the test
> (the test has never been seen failing without these combinations).
> 
> best regards,
> 
> -- daniel

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 <http://oracle.com/us/design/oracle-email-sig-198324.gif>Lance Andersen| Principal Member of Technical Staff | +1.781.442.2037
Oracle Java Engineering 
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