findByName()부분에서 java.lang.NullPointException 에러가 해결되지 않습니다.

안녕하십니까 강사님. 이렇게 유익한 강의를 만들어주셔서 감사합니다.

다름이 아니라 이 부분에 관한 다른 질문들을 보고 따라해봤지만 제 경우에는 해결되지 않아 도움을 부탁드립니다.

[MemoryMemberRepositoryTest] ->findByName에서 오류가 발생합니다.

package hello.hellospring1.repository;

import java.util.List;
import java.util.Optional;
import hello.hellospring1.domain.Member;
import org.assertj.core.api.Assertions;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;

import static org.assertj.core.api.Assertions.*;



import java.net.PortUnreachableException;

import static org.hamcrest.MatcherAssert.assertThat;

public class MemoryMemberRepositoryTest {

    MemoryMemberRepository repository = new MemoryMemberRepository();


    @AfterEach
    public void afterEach() {
        repository.clearStore();
    }

   
    @Test
    public void  findByName() {
        Member member1 = new Member();
        member1.setName("spring1");
        repository.save(member1);

        Member  member2= new Member(); //위에거 복사 & shift+f6 누르면 member 이름 한번에 바꿀 수 있음
        member2.setName("spring2"); //여기서 spring2는 자동으로 안바뀜 직접 바꾸기
        repository.save(member2);

        Member result = repository.findByName("spring1").get();

        Assertions.assertThat(result).isEqualTo(member1);
    }



}

[MemberRepository]

package hello.hellospring1.repository;

import hello.hellospring1.domain.Member;

import java.util.ArrayList;
import java.util.Map;
import java.util.HashMap;
import java.util.List;
import java.util.Optional;

public class MemoryMemberRepository implements MemberRepository {

    private static final Map<Long, Member> store = new HashMap<>();
    private static long sequence = 0L; 



    @Override
    public Member save(Member member) {
        member.setId(++sequence); 
        store.put(member.getId(),member); 
        return member;
    }

    @Override
    public Optional<Member> findById(Long id) {
        return Optional.ofNullable(store.get(id));
    }

    @Override
    public Optional<Member> findByName(String name) {
        return store.values().stream()
                .filter(member -> member.getName().equals(name))
                .findAny();
    }

    @Override
    public List<Member> findAll() {
        return new ArrayList<>(store.values());
    }



    public void clearStore(){
        store.clear();
    }

    @Override
    public Optional<Member> findId(Long memberId) {
        return Optional.empty();
    }
}

[에러]

package hello.hellospring1.domain;

public class Member  {

    private Long id;
    private String name;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName(){
        return name;
    }


    public void setName(String spring) {
    }
}