mysql - hibernate.MappingException：未知实体 - 无法找出此错误的原因

Question

当用于从我的 MySQL 数据库EntityManager中获取条目时，我有一个相当简单的本机查询。Character

class CharacterReader(
    private val entityManager: EntityManager
) {
    fun getCharacter(id: String): Character? {
        return entityManager.createNativeQuery("SELECT * FROM `character` WHERE id = :id", Character::class.java)
            .setParameter("id", id)
            .resultList.first() as Character
    }
}

我的表有这个数据

// converted to json for readability
[
  {
    "id": "666",
    "name": "Peter",
    "x": 5,
    "y": 0
  }
]

DAO 是这样定义的：

@Serializable
@Entity
@Table(name = "\"character\"")
data class Character(
    @Id
    val id: String,
    val name: String,
    @Embedded
    var position: Position
) {
    override fun equals(other: Any?): Boolean {
        if (this === other) return true
        if (javaClass != other?.javaClass) return false

        other as Character

        if (id != other.id) return false

        return true
    }

    override fun hashCode(): Int {
        return id.hashCode()
    }

    override fun toString(): String {
        return "Character(id='$id', name='$name', position=$position)"
    }

}

但是由于某种原因，我无法读取该值。抛出的错误是：

org.hibernate.MappingException: Unknown entity: com.barbarus.state.entity.Character

在我的 SQL 控制台中执行查询确实可以正常工作。