Overriding One Time Charge Entry Populator

Hello Experts,

I'm currently trying to override the populate method in the OneTimeChargeEntryPopulator since I added new attribute that I want to be populated. So, I've created the custom populator which extends the OneTimeChargeEntryPopulator and I've added the new spring configurations.

However my question is, should I create custom classes that extend any class that calls the old populator in order to make them call the new populator? or is there a best practice that should be followed?