HBASE-9709: LogReplay throws NPE when no KVs to be replayed in a WALEdit

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HBASE-9687 ClassNotFoundException is thrown when ExportSnapshot runs against hadoop cluster where HBase is not installed on the same node as resourcemanager



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Change count of fixed issues

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HBASE-9687 Addendum shuts down the MiniMapReduceCluster



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HBASE-9688 Fix javadoc warning in HConnectionManager class javadoc

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HBASE-9612 Ability to batch edits destined to different regions

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