13c3276c_orter_plugin_for_MR___ASF_JIRA__Class
[Protection] Changed to a static inner class and protection changed from package protected to public [Annotation] Annotated as Public, Unstable [Reason] To be able to use the default implementation of PostMapProcessor. [Class] 
org.apache.hadoop.mapred.MapTask.MapOutputBuffer
[MAPREDUCE-2454] Allow external sorter plugin for MR - ASF JIRA