ignore parameter if null - Spring Boot JPA findby

Question

I need 4 filtering options to get a list. so I used findBy~And~ method in SpringBoot JPA. But when some filterings is not applied, null data is passed. so from the code below, mysql proceed query like select ~ where branch="" which returns 0 row where it should return all the columns,,,,since branch filter is not applied.

SO I want it to ignore the parameter when it's null dynamically or not sending the parameter at all.

please kindly help !

service page :

Page<ReviewModel> reviewList = this.reviewRepository.findByBranchAndSexAndAgeRangeAndPurpose(request.getBranch(), request.getSex(), request.getAgeRange(), request.getPurpose(), pageable);

repository page:

Page<ReviewModel> findByBranchAndSexAndAgeRangeAndPurpose(String branch, String sex, String ageRange, String purpose, Pageable pageable);