RFR: 8245094: Reduce overhead of initializing the default StringConcatFactory strategy

[Paul Sandoz]

+1

Paul.

> On May 15, 2020, at 3:54 AM, Claes Redestad <claes.redestad at oracle.com> wrote:
> 
> Hi,
> 
> by adding a bridge method in JavaLangAcces to call into the
> StringConcatHelper.initialCoder - which is done only once during
> initialization - we can reduce bootstrap overhead of SCF by a few
> million instructions - ~0.5ms on wall clock measures.
> 
> Webrev: http://cr.openjdk.java.net/~redestad/8245094/open.00/
> Bug:    https://bugs.openjdk.java.net/browse/JDK-8245094
> 
> Testing: tier1
> 
> Thanks!
> 
> /Claes