意外的令牌：）findAll和findByKeyIn使用Spring和Eclipselink JPA

Question

爲什麼使用Spring 1.5.4.RELEASE和Eclipselink 2.6.4進行以下兩個簡單的集成測試失敗？

@RunWith(SpringRunner.class) 
@SpringBootTest(classes = {MyApp.class}) 
@WebAppConfiguration 
@DirtiesContext(classMode = ClassMode.BEFORE_CLASS) 
public class DbDummyIT { 

    @Autowired 
    private DbDummyRepository repo; 

    @Test 
    public void findAllFails() { 
     List<String> keys = Arrays.asList("1", "2"); 
     List<DbDummy> result = repo.findAll(keys); 
     assertThat(result.isEmpty()).isTrue(); 
    } 

    @Test 
    public void findByKeyInFails() { 
     List<String> keys = Arrays.asList("1", "2"); 
     List<DbDummy> result = repo.findByKeyIn(keys); 
     assertThat(result.isEmpty()).isTrue(); 
    } 

} 

基於：

@Entity 
@UuidGenerator(name = DbDummy.KEY_GENERATOR) 
public class DbDummy { 

    public static final String KEY_GENERATOR = "KeyGenerator"; 

    @Id 
    @Column(name = ColumnName.KEY, nullable = false) 
    @GeneratedValue(generator = KEY_GENERATOR) 
    public String key; 

} 

@Repository 
public interface DbDummyRepository extends JpaRepository<DbDummy, String> { 

    List<DbDummy> findByKeyIn(List<String> keys); 

} 

兩個測試調用find查詢時失敗，並JpaSystemException。錯誤信息是：

Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.6.4.v20160829-44060b6): org.eclipse.persistence.exceptions.DatabaseException 
Internal Exception: java.sql.SQLSyntaxErrorException: unexpected token:) in statement [SELECT Key FROM DBDUMMY WHERE (Key IN ((?,?)))] 
Error Code: -5581 
Call: SELECT Key FROM DBDUMMY WHERE (Key IN ((?,?))) 
    bind => [2 parameters bound] 
Query: ReadAllQuery(referenceClass=DbDummy sql="SELECT Key FROM DBDUMMY WHERE (Key IN (?))") 

該聲明對我來說確實是錯誤的。不是Key IN ((?, ?))查詢雙值元組列表？不應該查詢字符串列表Key IN (?, ?)？

Answer 1

看起來像一個的EclipseLink長活蟲：https://bugs.eclipse.org/bugs/show_bug.cgi?id=349477

Answer 2

嘗試將類型更改爲Collection<String> keys而不是List<String> keys。根據documentation，這應該是Collection，可能是Spring認爲它是你的自定義方法，而不是查詢方法。