Jim Donofrio created MRUNIT-125:
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             Summary: reduce duplicate code related to fluent methods with 
generics
                 Key: MRUNIT-125
                 URL: https://issues.apache.org/jira/browse/MRUNIT-125
             Project: MRUnit
          Issue Type: Improvement
            Reporter: Jim Donofrio
             Fix For: 1.0.0


There is a lot of duplicate code in order to provide fluent style with methods. 
We could reduce the duplicate code with generics by adding an unbound type 
parameter T to TestDriver and then all the fluent methods could go in 
TestDriver but return type T. The base classes, MapDriverBase etc, would just 
pass the T on so you would have:

public abstract class TestDriver<K1, V1, K2, V2, T>
public abstract class MapDriverBase<K1, V1, K2, V2, T> extends TestDriver<K1, 
V1, K2, V2, T>
public class MapDriver<K1, V1, K2, V2> extends MapDriverBase<K1, V1, K2, V2, 
MapDriver<K1, V1, K2, V2>> 

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