【转】No Persistence provider for..

 NetBeans 开发 JPA 应用程序，使用 TopLink ，报如下错误：

Exception in thread "main" javax.persistence.PersistenceException: No Persistence provider for EntityManager named XXX:  The following providers:

org.hibernate.ejb.HibernatePersistence

oracle.toplink.essentials.PersistenceProvider

oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider

Returned null to createEntityManagerFactory.

换成 Hibernate 就没有这个问题。

经网上查找（ http://www.netbeans.com.cn/read.php?tid=775 ）和测试，这是由于项目带有中文路径的 BUG ！