Resolved [org.springframework.dao.InvalidDataAccessApiUsageException: Modifying queries can only use void or int/Integer as return type! Offending method: public abstract com.example com.example.repository.myRepository.mySave(int,int,java.lang.String); nested exception is java.lang.IllegalArgumentException: Modifying queries can only use void or int/Integer as return type! Offending method: publ..