RFR: JDK-8156995 - jimage: extract specified contents

[Jim Laskey (Oracle)]

We tried using regex in jlink for various filters and found that it made jlink > 10x slower.  Granted jlink is time critical and jimage is not.  I made the assumption that filter expressions would be very basic, most of the time, and tried to be consistent with filters for both tools.  I could easily change it to use regex if not a basic pattern.

Note we also chose not to use java.lang.regex in Nashorn for similar reasons (plus the fact it didn’t meet JS spec. .)  Might be worth revisiting regex performance.

— Jim
 


> On Jun 1, 2016, at 12:24 PM, Alan Bateman <Alan.Bateman at oracle.com> wrote:
> 
> On 01/06/2016 15:48, Jim Laskey (Oracle) wrote:
> 
>> http://cr.openjdk.java.net/~jlaskey/8156995/webrev/index.html
>> https://bugs.openjdk.java.net/browse/JDK-8156995
> Jim - should this allow regex rather than just "*" ?
> 
> -Alan