@Override
      public ReturnCode filterCell(Cell c) throws IOException {
        return ReturnCode.INCLUDE_AND_NEXT_COL;
      }
Tests the the {@link WhileMatchFilter} works in combination with a {@link Filter} that uses the
{@link Filter#filterCell(Cell)} method. See HBASE-2258.
hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilter.java