Garbage collection race condition before final checks

[Gary Adams]

  Added PlatformLoggingMXBeanTest to the 7067691 bug fix,
e.g. instance variables for Logger variables to prevent premature
weak reference collection.

   http://cr.openjdk.java.net/~gadams/7067691/

Fresh webrevs for the other work in progress bug fixes.

   http://cr.openjdk.java.net/~gadams/6731620/
   http://cr.openjdk.java.net/~gadams/6818464/
   http://cr.openjdk.java.net/~gadams/6860309/
   http://cr.openjdk.java.net/~gadams/7084033/

On 11/10/11 09:41 AM, Gary Adams wrote:
>  On 11/ 8/11 11:13 PM, Mandy Chung wrote:
>>
>>
>> Thanks for picking up this bug and fixing this intermittent issue.  
>> PlatformLoggingMXBeanTest.java in the same directory has the same issue.  
>> It'd be good to fix that with the same CR.  These tests were copied from 
>> test/java/util/logging/LoggingMXBeanTest.java.  I haven't looked in details 
>> but I wonder why the test/java/util/logging tests don't have this 
>> intermittent issue and I suspect it holds a strong reference.
>
> I attempted to break PlatformLoggingMXBeanTest.java with a generous 
> application of
> GC calls, but I could not get it to fail in the same manner as the other test. 
> It may be
> failing due to a different condition.
>