HBASE-8611. Improve test coverage in pkg org.apache.hadoop.hbase.mapred

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1537567 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8543 fix coverage org.apache.hadoop.hbase.rest.client

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1537622 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8559 increase unit-test coverage of package org.apache.hadoop.hbase.coprocessor



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1537741 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9867 Save on array copies with a subclass of LiteralByteString

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1537750 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9871 PB issue : Increment attributes are not getting passed to server

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