RFR: 8168073: Speed up URI creation during module bootstrap

Alan Bateman Alan.Bateman at oracle.com
Mon Oct 17 18:07:20 UTC 2016

On 17/10/2016 12:17, Claes Redestad wrote:
> Hi,
> one partial cause for startup regressions due to jigsaw is related to 
> creating
> URIs for the location of each module.
> By providing a package-private constructor we can avoid the time to 
> scan and
> validate the URI, which takes a little time (executes ~80K bytecodes) 
> but also
> pushes various methods over compilation thresholds during early startup,
> which more notably interferes with perceived startup.
> http://cr.openjdk.java.net/~redestad/8168073/webrev.01/
> https://bugs.openjdk.java.net/browse/JDK-8168073
This looks okay, I just wondering if JavaNetAccess should be renamed to 
JavaNetUriAccess to avoid it being used to access other classes in 
java.net. If renamed then I guess createUri could be renamed to create too.


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