RFR: 8209837: Avoid initializing ExpiringCache during bootstrap

[Claes Redestad]

Hi,

On 2018-08-23 17:12, Remi Forax wrote:
> Hi Claes,
>
>    useCanonPrefixCache = useCanonCaches ? getBooleanProperty("sun.io.useCanonPrefixCache",false) : false;
> can be written
>    useCanonPrefixCache = useCanonCaches && getBooleanProperty("sun.io.useCanonPrefixCache",false);

sure.
> and the name useCanonCaches/useCanonPrefixCache should follow the coding convention USE_CANON_CACHES/USE_CANON_PREFIX_CACHE.

While agreeable, I think there's also value that the constants reflect 
the property names used to set them, while renaming the properties feels 
far out of scope. I'll opt not to rename anything, unless you insist.

/Claes