RFR (XS) 8076759: AbstractStringBuilder.append(...) should ensure enough capacity for the upcoming "trivial" append calls

[Aleksey Shipilev]

On 05/01/2015 10:14 PM, Bernd Eckenfels wrote:
> btw just a small - maybe unrelated - observation on stock Java8u40. When
> benchmarking String.valueOf/Integer.toString/""+n with JMH I noticed
> that the compiler aided concatenation is the fastest, 

String concat desugaring and optimizations is a separate topic,
unrelated to the issue at hand. Let's not sidetrack.

> but not for all integer values. 

You have to notice the errors are quite large, so you can't really tell
if StringConcat is "slower" on 2147483647.

> https://gist.github.com/ecki/399136f4fd59c1d110c1


Thanks,
-Aleksey