RFR(xs): 8204095: [TESTBUG] TestPrintReferences.java fails if multiple concurrent mark happens

[Thomas Schatzl]

Hi,

On Wed, 2018-05-30 at 13:15 -0700, sangheon.kim at oracle.com wrote:
> Hi all,
> 
> Can I have reviews for this tiny patch?
> 
> TestPrintReferences.java compares total time of a phase and sum of 
> sub-phases.
> However it doesn't split values in different GCs so it could read
> total time from one GC and sum of sub-phases from followed GC.
> This patch excludes other GCs from the first one so we are not
> affected by following GC values.

  looks good.

Thomas