Reduce allocation in sun.net.www.protocol.jar.Handler.parseURL

[Eirik Bjørsnøs]

>
>
> By letting canonizeString do the substring calls, but only when it
> determines that it is needed, we can remove some unnecessary String and
> byte[] allocations.
>

While English is not my mother tongue, I'm thinking we could maybe let the
Vatican deal with canonizations and rename this to the more appropriate
"canonicalizeString"?

Eirik.