自 Java 10.0 空指针以来，同时搜索持久性 - JPA eclipselink 2.6.5

Question

我将一些带有 eclipselink 2.6.5 的 EJB 实体用于 Rest Service(TomEE 服务器中的 Jersy(。

使用 jdk-1.8 它可以正常工作，但是现在使用新的 jdk-10.0，我在搜索持久性时得到了一个 NullPointerException。

我的 JPA 环境中是否存在错误或不匹配？

谢谢

斯蒂芬

Exception in thread "main" Local Exception Stack: 
Exception [EclipseLink-30005] (Eclipse Persistence Services - 2.6.5.v20170607-b3d05bd): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException
Exception Description: An exception was thrown while searching for persistence archives with ClassLoader: jdk.internal.loader.ClassLoaders$AppClassLoader@41906a77
Internal Exception: java.lang.NullPointerException
at org.eclipse.persistence.exceptions.PersistenceUnitLoadingException.exceptionSearchingForPersistenceResources(PersistenceUnitLoadingException.java:127)
at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactoryImpl(PersistenceProvider.java:115)
at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:188)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54)
at de.company.test.simulation.session.MySimulationService.<init>(MySimulationService.java:50)
at de.company.test.simulation.controller.MyController.<init>(MyController.java:81)
at de.company.test.simulation.MySimulationLauncher.main(MySimulationLauncher.java:156)
Caused by: java.lang.NullPointerException
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:2030)
at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.callPredeploy(JPAInitializer.java:100)
at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactoryImpl(PersistenceProvider.java:104)

我的坚持.xml

http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd" 版本="2.1">

<persistence-unit name="myUnitName" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>de.company.test.simulation.entities.ProjectEntity</class>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://mysql.mediatransfer.de/dbName?useUnicode=true&useJDBCCompliantTimezoneS‌​hift=true&useLegacyDatetimeCode=false&serverTimezone=UTC" />
<property name="javax.persistence.jdbc.user" value="userName" />
<property name="javax.persistence.jdbc.password" value="****" />
<!-- EclipseLink should create the database schema automatically -->
<property name="eclipselink.ddl-generation" value="none" />
<property name="eclipselink.ddl-generation.output-mode" value="database" />
<property name="eclipselink.logging.level" value="SEVERE" />
</properties>
</persistence-unit>

下面是我的 Web 应用程序中的实体 ProjectEntity 的示例。 这在 java 1.8 中对我来说效果很好。

@Entity(名称 = "项目实体"( @Table(名称 = "项目"( 公共类 ProjectEntity 实现可序列化 { @Id @GeneratedValue(strategy = GenerationType.IDENTITY( @Column(name = "id"， nullable = false， unique = true， updateable = false( 私有整数 ID; @Column(名称 = "project_name"，可为空 = 假，长度 = 256( @NotNull 私有字符串项目名称; public ProjectEntity(( {}//..

Answer 1

在我遇到同样的问题后，升级到EclipseLink 2.7.3为我解决了它。