Patch review request - Test bug 7123972 test/java/lang/annotation/loaderLeak/ fails intermittently

Alan Bateman Alan.Bateman at
Thu Jun 21 10:18:34 UTC 2012

On 21/06/2012 07:05, Eric Wang wrote:
> Hi All,
> I come from Java SQE team who are interested in regression test bug 
> fix. Here is the first simple fix for bug 7123972 
> <>, Can you please 
> help to review and comment? Attachment is the patch Thanks!
> This bug is caused by wrong assumption that the GC is started 
> immediately to recycle un-referenced objects after System.gc() called 
> one or two times.
> The proposed solution is to make sure the un-referenced object is 
> recycled by GC before checking if the reference is null.
> Regards,
> Eric
You should also remove the test from the exclude list 
(jdk/test/ProblemList.txt) so that it will be run again.

Otherwise the change looks okay to me. I agree with David's comments 
that you could invoke runFinalization. I would also suggest increasing 
the sleep time from 5ms so that it's not spinning calling System.gc. A 
minor comment is that "while(false==GCIndicator)" looks a bit odd, maybe 
rename the flag to "finalized" and change it to "while (!finalized) { 
... }".


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