RFR : 8186517: sun.nio.cs.StandardCharsets$Aliases and ClassMap can be lazily loaded
claes.redestad at oracle.com
Wed Aug 23 22:13:55 UTC 2017
On 2017-08-23 23:21, Xueming Shen wrote:
> On 8/23/17, 8:48 AM, Claes Redestad wrote:
>> On 08/23/2017 04:52 PM, Claes Redestad wrote:
>>> We still need to key on the lower-case name in the cache for now:
>> Or perhaps not. Since we're always loading these three Charset on
>> bootstrap now, we might as well initialize them eagerly and bypass
>> the cache entirely (but keep this neatly contained in StandardCharset).
>> This allows us to lazily load the $Cache class too, further reducing
>> work done during System.initPhase1:
> if we go that far :-) shouldn't we simply expose the utf8/8859-1/ascii
> instance directly?
Why not. If we went as far as to putting them in
we'd not even load sun...StandardCharsets during typical bootstrap,
of course make things even better for startup.
> if we go with String.equals then any reason we still need define the
> String constants?
Not really, no.
> why the signature change in utf8.java for updatePositions()?
This gets rid of a synthetic accessor method, which helps startup a tiny
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