RFR: 5108778 Too many instances of java.lang.Boolean created in Java application(core-libs)
aleksey.shipilev at oracle.com
Fri Oct 9 11:16:20 UTC 2015
On 10/08/2015 09:58 PM, Stuart Marks wrote:
> On 10/7/15 12:59 PM, Sebastian Sickelmann wrote:
>> The Boolean constructors are @Deprecated now so that we get
>> compile-warnings for the uses. See also  and 
> Hi Sebastian,
> I did suggest adding @Deprecated to the Boolean constructors, but only
> in your own source tree, as a quick means of causing the compiler to
> emit warnings for places where they're used. I don't think we should
> actually go ahead and deprecate them at this time. So, please drop the
> deprecation changes from your patch. Sorry for the misunderstanding.
> (As I've mentioned elsewhere, there is forthcoming work in the area of
> deprecation, so the Boolean constructors will eventually be marked in
> some way so that developers will be advised to update their code.)
Please note that "static final Boolean myBool = new
Boolean(true).booleanValue()" is a spec-recommended way to avoid binary
incompatibilities caused by conditional compilation. See JLS 13.4.9.
Therefore, deprecating Boolean constructors is a spec issue as well.
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