RFR(S): 8160083 - compiler.codecache.jmx.InitialAndMaxUsageTest can not be used w/ disabled SegmentedCodeCache

[Dmitrij Pochepko]

Hi,

please review fix for 8160083 - 
compiler.codecache.jmx.InitialAndMaxUsageTest can not be used w/ 
disabled SegmentedCodeCache

Test haven't covered non-segmented codecache case and failed in this 
case with codecache exhaustion, because test is trying to fill codecache 
as much as possible and checks 95% is filled. This fix modifies test to 
fill no more than 97% of codecache.

webrev: http://cr.openjdk.java.net/~dpochepk/8160083/webrev.01/
CR: https://bugs.openjdk.java.net/browse/JDK-8160083

I've verified fix on linux-amd64.

Thanks,
Dmitrij