Creating EO without WHO column in OAF

As per java standards, any class which extends an abstract class, must implement the abstract methods of the parent class or should be declared abstract itslef.
So Your child class must implement theses methods which is show as below

First:import theses package
 
import oracle.jbo.domain.Date;
import oracle.jbo.domain.Number; 

Then implement these metods

public  void setCreationDate(Date date){}

public  void setCreatedBy(Number number){}

public  void setLastUpdateDate(Date date){}

public  void setLastUpdatedBy(Number number){}

public   void setLastUpdateLogin(Number number){}