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package com.em;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

public class EntityManagerClass {
     public static EntityManager createEntity() {
         System.out.println("EntityManager start");
        **EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("idata");**
        EntityManager entityManager = entityManagerFactory.createEntityManager();
        System.out.println("EntityManager"+entityManager);
        return entityManager;
    }
}

嗨，我是 java 新手。当我在 JPA 中使用 ENTITYMANAGERFACTORY 时，我收到类似“线程中的异常”AWT-EventQueue-0“java.lang.IncompatibleClassChangeError：实现类”的错误。请帮助解决这个问题。

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