H2：blob的“十六进制字符串包含非十六进制字符”

Question

我正在尝试将以下实体插入H2数据库以进行测试

@Entity
public class User {

    @OneToMany(mappedBy = "userEntity",
        ...
    )
    private List<UserPropertiesEntity> props = null;
    ... 
}

以下是属性实体。

@Entity
public class UserPropertiesEntity {

    @ManyToOne()
    @JoinColumn(name = "user_id")
    private UserEntity userEntity = null;

    @Convert(converter = ObjectToJsonJpaConverter.class)
    private Object value = null;
}

类ObjectToJsonJpaConverter将任何对象序列化为JSON。

这是我的测试用例的样子。

@RunWith(SpringRunner.class)
@DataJpaTest
public class UserRepositoryTest {

... 

  @Test
  public void getAllData() {
      UserEntity userEntity = createDummyUserEntity();

      UserPropertiesEntity prop= new UserPropertiesEntity();
      prop.setKeyName("key");
      prop.setValue("abc");
      dummyInstanceEntity.setParameters(Arrays.asList(prop));
  }
}

这失败，但例外

...    
Caused by: org.h2.jdbc.JdbcSQLException: Hexadecimal string contains non-hex character: """abc"""; SQL statement:
    insert into user_properties (id, user_id, key_name, value) values (null, ?, ?, ?) -- (NULL, ?1, ?2, ?3) [90004-197]
        at org.h2.message.DbException.getJdbcSQLException(DbException.java:357)
...

我在这里想念什么？