As of commit cfddfcf23cc38161da70bfe965b8e7b6e0581711 , the reference to CellComparatorImpl should be replaced.
- return CellComparatorImpl.COMPARATOR.compare(this.kv, ((CellWritableComparable)o).kv); + return CellComparator.getInstance().compare(this.kv, o.kv); Looks like Mike forgot to change line 168 over HBASE-19160 for branch hbase-2
