org.apache.hadoop.mapred.lib
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## Package `org.apache.hadoop.mapred.lib`

Added Classes
`BinaryPartitioner` | Partition BinaryComparable keys using a configurable part of the bytes array returned by BinaryComparable#getBytes()

Changed Classes
HashPartitioner | Partition keys by their Object#hashCode()
IdentityMapper | Implements the identity function mapping inputs directly to outputs.
IdentityReducer | Performs no reduction writing all input values directly to the output.
InverseMapper | A Mapper that swaps keys and values.
LongSumReducer | A Reducer that sums long values.
NullOutputFormat | Consume all outputs and put them in /dev/null.
TokenCountMapper | A Mapper that maps text values into pairs.

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