Ignoring NULL (optional field) while making POJO:
Option 1 : (Recommended) To add in class level
* This is best suitable while using Lombok and builder pattern
Option 2 : To add in Getter level
* This is only suitable while using without lombok and only with builder pattern
Error: Lombok 1.18.12 does not compile well with maven compiler 3.8.1.
So downgrade lombok to 1.16.6
Note: This lombok feature is now already available java 14 as built -in feature