it is required ....

if u look at the implementation in https://github.com/samarthgupta437/falcon-regression/blob/master/merlin-core/src/main/java/org/apache/falcon/regression/core/helpers/ProcessEntityHelperImpl.java#L276

there are 2 methods ... both require user parameter, leaving last param empty calls the wrong overloaded method. 

it seems signature in https://github.com/samarthgupta437/falcon-regression/blob/master/merlin-core/src/main/java/org/apache/falcon/regression/core/interfaces/IEntityManagerHelper.java#L412

is misleading