Jsf 无法解析org.eclipse.persistence.exceptions.EntityManagerSetupException

我正在尝试运行maven项目，我能够部署该项目，但在部署该项目后，当我单击任何函数执行操作时，它会显示以下异常：

root cause:
Exception [EclipseLink-28013] (Eclipse Persistence Services - 2.0.1.v20100213-r6600): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Attempted to deploy PersistenceUnit [DBUnit] while being in the wrong state [DeployFailed]. Close all factories for this PersistenceUnit.

我已尝试重新部署和重新启动glassfish，但无法解决此问题。有关更多信息，我还将发布我的

persistence.xml

文件和

服务器日志

persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
             version="2.0">

    <persistence-unit name="EC-Assignment" transaction-type="JTA">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        <jta-data-source>jdbc/Assignment2</jta-data-source>

        <class>org.beginningee6.book.Book</class>
        <class>org.beginningee6.book.CD</class>
        <class>org.beginningee6.book.Item</class>
        <class>org.beginningee6.book.customer.Customer</class>


        <properties>
            <property name="eclipselink.ddl-generation" value="drop-and-create-tables"/>
            <property name="eclipselink.logging.level" value="INFO"/>




        </properties>
    </persistence-unit>
</persistence>

---

任何帮助都将不胜感激。

我通过更改

持久化单元的名称成功地解决了上述错误。可以使用多个名称。但是，当我摆脱了这个异常，现在又出现了一个新的错误。错误如下：

root cause

java.lang.VerifyError: Expecting a stackmap frame at branch target 18 

in method org.beginningee6.book.Item._persistence_isAttributeFetched(Ljava/lang/String;)Z at offset

我对此进行了研究，发现通过添加
-XX:-UseSplitVerifier
可以解决这个问题。我添加了这个变量，但仍然无法消除这个错误

root cause

java.lang.VerifyError: Expecting a stackmap frame at branch target 18 

in method org.beginningee6.book.Item._persistence_isAttributeFetched(Ljava/lang/String;)Z at offset