带有 StaxEventItemWriter 的 EclipseLink JAXB ClassCastException

如何解决带有 StaxEventItemWriter 的 EclipseLink JAXB ClassCastException

我正在使用 Spring Batch 创建一个 xml 文件。对于创建，我想在我的 java 对象中使用 XPaths。因此，我想使用 EclipseLink Moxy。我在网上学习了一些通用教程，但它们都很旧。

我正在使用以下依赖项：

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-oxm</artifactId>
</dependency>
<dependency>
    <groupId>org.eclipse.persistence</groupId>
    <artifactId>org.eclipse.persistence.moxy</artifactId>
    <version>3.0.0</version>
</dependency>
<dependency>
    <groupId>jakarta.xml.bind</groupId>
    <artifactId>jakarta.xml.bind-api</artifactId>
    <version>3.0.0</version>    
</dependency>
<dependency>
    <groupId>com.sun.xml.bind</groupId>
    <artifactId>jaxb-impl</artifactId>
    <version>3.0.0</version>
    <scope>runtime</scope>
</dependency>
<dependency>
    <groupId>jakarta.activation</groupId>
    <artifactId>jakarta.activation-api</artifactId>
    <version>2.0.0</version>
</dependency>

Jaxb2Marshaller 实现如下：

@Bean
public Jaxb2Marshaller getMarshaller() {
        
    Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
    marshaller.setPackagesToScan("com.test.model");
        
    return marshaller;
}

在包 com.test.model 中是我的带有注释的 xml 模型类和具有以下内容的 jaxb.properties 文件：

javax.xml.bind.context.factory=org.eclipse.persistence.jaxb.JAXBContextFactory

启动我的应用程序时出现以下错误：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'getMarshaller' defined in class path resource [com/test/BatchConfig.class]: Invocation of init method Failed; nested exception is org.springframework.oxm.UncategorizedMappingException: UnkNown JAXB exception; nested exception is javax.xml.bind.JAXBException: ClassCastException: attempting to cast jar:file:/.../.m2/repository/javax/xml/bind/jaxb-api/2.3.1/jaxb-api-2.3.1.jar!/javax/xml/bind/JAXBContext.class to jar:file:/.../.m2/repository/javax/xml/bind/jaxb-api/2.3.1/jaxb-api-2.3.1.jar!/javax/xml/bind/JAXBContext.class.  Please make sure that you are specifying the proper ClassLoader.    
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.initializeBean(AbstractAutowireCapablebeanfactory.java:1788) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.doCreateBean(AbstractAutowireCapablebeanfactory.java:609) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBean(AbstractAutowireCapablebeanfactory.java:531) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.Abstractbeanfactory.lambda$doGetBean$0(Abstractbeanfactory.java:335) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:333) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:208) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.DefaultListablebeanfactory.preInstantiateSingletons(DefaultListablebeanfactory.java:944) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.context.support.AbstractApplicationContext.finishbeanfactoryInitialization(AbstractApplicationContext.java:923) ~[spring-context-5.3.3.jar:5.3.3]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588) ~[spring-context-5.3.3.jar:5.3.3]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.2.jar:2.4.2]
    at com.test.main(Main.java:18) ~[classes/:na]
Caused by: org.springframework.oxm.UncategorizedMappingException: UnkNown JAXB exception; nested exception is javax.xml.bind.JAXBException: ClassCastException: attempting to cast jar:file:/.../.m2/repository/javax/xml/bind/jaxb-api/2.3.1/jaxb-api-2.3.1.jar!/javax/xml/bind/JAXBContext.class to jar:file:/.../.m2/repository/javax/xml/bind/jaxb-api/2.3.1/jaxb-api-2.3.1.jar!/javax/xml/bind/JAXBContext.class.  Please make sure that you are specifying the proper ClassLoader.    
    at org.springframework.oxm.jaxb.Jaxb2Marshaller.convertJaxbException(Jaxb2Marshaller.java:955) ~[spring-oxm-5.3.3.jar:5.3.3]
    at org.springframework.oxm.jaxb.Jaxb2Marshaller.getJaxbContext(Jaxb2Marshaller.java:514) ~[spring-oxm-5.3.3.jar:5.3.3]
    at org.springframework.oxm.jaxb.Jaxb2Marshaller.afterPropertiesSet(Jaxb2Marshaller.java:480) ~[spring-oxm-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.invokeInitMethods(AbstractAutowireCapablebeanfactory.java:1847) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.initializeBean(AbstractAutowireCapablebeanfactory.java:1784) ~[spring-beans-5.3.3.jar:5.3.3]
    ... 16 common frames omitted
Caused by: javax.xml.bind.JAXBException: ClassCastException: attempting to cast jar:file:/.../.m2/repository/javax/xml/bind/jaxb-api/2.3.1/jaxb-api-2.3.1.jar!/javax/xml/bind/JAXBContext.class to jar:file:/.../.m2/repository/javax/xml/bind/jaxb-api/2.3.1/jaxb-api-2.3.1.jar!/javax/xml/bind/JAXBContext.class.  Please make sure that you are specifying the proper ClassLoader.    
    at javax.xml.bind.ContextFinder.handleClassCastException(ContextFinder.java:157) ~[jaxb-api-2.3.1.jar:2.3.0]
    at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:300) ~[jaxb-api-2.3.1.jar:2.3.0]
    at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:286) ~[jaxb-api-2.3.1.jar:2.3.0]
    at javax.xml.bind.ContextFinder.find(ContextFinder.java:391) ~[jaxb-api-2.3.1.jar:2.3.0]
    at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:721) ~[jaxb-api-2.3.1.jar:2.3.0]
    at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:662) ~[jaxb-api-2.3.1.jar:2.3.0]
    at org.springframework.oxm.jaxb.Jaxb2Marshaller.createJaxbContextFromPackages(Jaxb2Marshaller.java:573) ~[spring-oxm-5.3.3.jar:5.3.3]
    at org.springframework.oxm.jaxb.Jaxb2Marshaller.getJaxbContext(Jaxb2Marshaller.java:506) ~[spring-oxm-5.3.3.jar:5.3.3]
    ... 19 common frames omitted

为什么要尝试将 jar 转换为另一个 jar？为什么失败了，好像是同一个jar包？