Theoretical data race on java.util.logging.Handler.sealed

Alan Bateman Alan.Bateman at
Tue Dec 10 08:48:47 UTC 2013

On 10/12/2013 04:13, Mandy Chung wrote:
> On 12/8/2013 11:19 AM, Peter Levart wrote:
>> :
>> You're right, doPrivileged() is a more straight-forward approach than 
>> 'sealed' variable. Since this might only be considered for inclusion 
>> in JDK9 when lambdas are already a tried technology, how do you feel 
>> about using them for platform code like logging?
> I'm in favor of more platform code using lambda when appropriate. 
> logging is a module separated from the base module in Jigsaw.   I 
> don't see any issue with that while the only thing is that when we 
> backport it to 8u, the backport would be different - not an issue either.
I'm less sure on this about this (or rather just concerned there might 
be code paths that lead to recursive initialization issues when linking 
call sites). I see there are still cases where String.format is used 
when generating proxy classes and that will trigger the loading of 
locale-specific service providers. There is also exception handling in 
the proxy class dumping code that use the PlatformLogger. It might not 
be an issue with this specific patch as the compiler will (I think) 
generate the lambda method but just a general worry about anything that 
might run early in the startup.


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