596f00ae_orter_plugin_for_MR___ASF_JIRA__Protection
[Class] org.apache.hadoop.mapred.Task.CombinerRunner [Annotation] Changed from Private, Unstable to Public, Unstable [Reason] For code reuse to run the Combiner from external PostMapProcessor plug-ins. [Protection] 
Changed from protected to public
[MAPREDUCE-2454] Allow external sorter plugin for MR - ASF JIRA
Protection