RFR 8234656: Improve granularity of verifier logging

[David Holmes]

Hi Harold,

On 26/11/2019 3:13 am, Harold Seigel wrote:
> Hi,
> 
> Please review this small change to improve the granularity of verifier 
> logging.  This change provides brief output for log level info and 
> detailed logging for log levels debug and trace. Additionally, it 
> changes verifier test TraceClassRes.java to use the logging API command 
> line options.

Deciding what to log at what level is highly subjective :) This change 
seems okay though as anyone who wants the current output can enable 
"debug" logging for verification and won't then get a tonne of other 
stuff they didn't want.

The new test functionality could be added to the existing:

./hotspot/jtreg/runtime/logging/VerificationTest.java

Thanks,
David
-----

> Open Webrev: http://cr.openjdk.java.net/~hseigel/bug_8234656/webrev/
> 
> JBS Bug: https://bugs.openjdk.java.net/browse/JDK-8234656
> 
> The fix was regression tested by running Mach5 tiers 1 and 2 tests and 
> builds on Linux-x64, Solaris, Windows, and Mac OS X, by running Mach5 
> tiers 3-5 tests on Linux-x64, and JCK lang and VM tests on Linux-x64.
> 
> Thanks, Harold
>