public Statistics getStats() {
    return stats;
  }
Utility map for temporarily holding stat start times.
<p>
This was originally added to avoid having to add a long volunteeringStarted variable to every
instance of BucketAdvisor. Majority of BucketAdvisors never volunteer and an instance of
BucketAdvisor exists for every bucket defined in a PartitionedRegion which could result in a
lot of unused longs. Volunteering is a rare event and thus the performance implications of a
HashMap lookup is small and preferrable to so many longs. Key: BucketAdvisor, Value: Long
geode-core/src/main/java/org/apache/geode/internal/cache/PartitionedRegionStats.java