@Entity
@Table(name = "some_table")
class SomeEntity(
    @Id
    @GeneratedValue(generator = "some_id_seq")
    @SequenceGenerator(name = "some_id_seq", sequenceName = "some_id_seq", allocationSize = 1)
    @Column(name = "id")
    val id: Int? = null,

    @Column(name = "name")
    var name: String? = null,
)

someEntityRepository.findAll { root, _, cb ->
    val predicate = cb.isNull(root[SomeEntity_.name])
    val negation = cb.not(predicate)//same with predicate.not()
    cb.and(predicate, negation)
}

select
    someentity0_.id as id1_56_,
    someentity0_.name as name2_56_ 
from
    distributor_test.some_table someentity0_ 
where
    (
        someentity0_.name is null
    ) 
    and (
        someentity0_.name is not null
    )