RFR(S): 8226796: Reduce debug level logging for oopstorage+blocks

[Kim Barrett]

> On Jul 26, 2019, at 8:38 AM, Per Liden <per.liden at oracle.com> wrote:
> 
> Looks good!

Thanks.

> 
> /Per
> 
> On 7/26/19 2:55 AM, Kim Barrett wrote:
>> Please review this adjustment to some of the logging levels in the
>> OopStorage implementation, under the (oopstorage, blocks) tag
>> sequence.  High volume logging statements have been reduced to trace
>> level, and memory allocation failure has been raised to info.
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8226796
>> Webrev:
>> http://cr.openjdk.java.net/~kbarrett/8226796/open.00/
>> Note: This webrev is baselined from the JDK-8228631 change that is
>> also out for review.
>> Testing:
>> mach5 tier1
>> Local testing with various logging options and looked at output.