java - play framework 2.6 注入JPAApi

Question

我正在尝试根据此处的官方文档将我的播放应用程序与休眠连接。我的 persistence.xml 文件`http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd" version="2.1">

<persistence-unit name="defaultPersistenceUnit" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
    <non-jta-data-source>DefaultDS</non-jta-data-source>
    <properties>
        <property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect"/>
        <property name="hibernate.hbm2ddl.auto" value="update"/>
    </properties>
</persistence-unit>

`

但是，将 JPAApi 注入控制器构造函数后，出现以下错误：

    `[ERROR] [11/07/2017 17:37:08.944] [play-dev-mode-akka.actor.default-dispatcher-6] [akka.actor.ActorSystemImpl(play-dev-mode)] Internal server error, sending 500 response
com.google.common.util.concurrent.UncheckedExecutionException: java.lang.IllegalArgumentException
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2218)
    at com.google.common.cache.LocalCache.get(LocalCache.java:4147)
    at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:4151)
`

好像DI机制找不到对JPAApi接口的正确实现。我该如何解决这个问题？