RFR: 8214712: Archive Attributes$Name.KNOWN_NAMES

Claes Redestad claes.redestad at oracle.com
Mon Dec 3 16:50:29 UTC 2018

On 2018-12-03 17:06, Alan Bateman wrote:
> On 03/12/2018 16:02, Claes Redestad wrote:
>> Hi,
>> http://cr.openjdk.java.net/~redestad/8214712/jdk.00/
> This looks okay to me but the changes remind me that there are several 
> attributes name in KNOWN_NAMES are should probably be removed as they 
> aren't defined by Java SE or the JDK.

Thanks, Alan!

The extra Names added to KNOWN_NAMES was my doing, and it was based on 
commonly used attributes in Jar file manifests scanned from a set 
commonly used applications as an alternative to building up a Name cache 
dynamically (which is frought with other perils). The chose extras gave 
a marginal but measurable improvement in startup to a wide array of 
applications as a result, and their inclusion is strictly an internal 
implementation detail. If you insist on having them removed I won't 
object, but I believe it's an harmless optimization.


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