[HBase-Client] In some cases, no value is obtained using method Result.getValue()

Results are not sorted during the query by Result.getValue(). As a result, existing values cannot be queried.

In normal cases, the results by get or scan are sorted and this problem does not occur. However, in some cases, such as when the HFile file is read by MR and the cells obtained are combined as result by rowkey, there is no sorting.  Result.getvalue (byte [] family, byte [] qualifier) is null.  

• The test results are shown in the figures

Test.java