本文介绍了Glassfish 4 moxy eclipselink 2.5.2 oxm对象图形麻烦的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在用oxm xml元数据定义的对象图编组这个问题。
由：java.lang引起。 ClassNotFoundException：未在org.eclipse.persistence.core找到javax.xml.bind.JAXBElement [142] at
org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation（BundleWiringImpl
.java：1532）at
org.apache.felix.framework.BundleWiringImpl.access $ 400（BundleWiringImpl.java:75）at
org.apache.felix.framework.BundleWiringImpl $ BundleClassLoader.loadClass（BundleWiringImpl.jav
a： 1955）
导致：java.lang.NoClassDefFoundError：javax / xml / bind / JAXBElement $ b $在org.eclipse.persistence.internal.oxm.ChoiceUnmarshalContext.getValue（ChoiceUnmarshalContext.java:70 ）
如果不使用外部定义的oxm对象图，它就可以运行..
我使用classloader从meta-inf加载xml文件
URL resource1 = this .getClass（） 。.getClassLoader（）的getResource（ META-INF / contactsimpleoxm.xml）;
URL resource2 = this.getClass（）。getClassLoader（）。getResource（META-INF / graph2oxm.xml）;
我下载了eclipselink-plugins-2.5.2.v20140319-9ad6abd.zip。
并复制文件：
cp org.eclipse.persistence.antlr_3.2.0.v201302191141.jar / opt / glassfish4 / glassfish / modules / org.eclipse.persistence.antlr.jar
cp org.eclipse.persistence.asm_3.3.1.v201302191223.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.asm。 jar
cp org.eclipse.persistence.core_2.5.2.v20140319-9ad6abd.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.core.jar
cp org.eclipse.persistence。 dbws_2.5.2.v20140319-9ad6abd.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.dbws.jar
cp org.eclipse.persistence.jpa.jpql_2.5.2.v20140319-9ad6abd.jar / opt / glassfish4 / glassfish / modules / org.eclipse.persistence.jpa.jpql.jar
cp org.eclipse.persistence.jpa_2.5.2.v20140319-9ad6abd.jar / opt / glassfish4 / glassfish / modules / org。 eclipse.persistence.jpa.jar
cp org.eclipse.persistence.moxy_2.5.2.v20140319-9ad6abd.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.moxy.jar
cp org.eclipse.pe rsistence.oracle_2.5.1.v20130618-75cdba2.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.oracle.jar
cp javax.persistence_2.1.0.v201304241213.jar / opt / glassfish4 / glassfish / modules / javax.persistence.jar
我清除了osgi-cache并重新编译了glssfgish。 eclipse版本正确地报告为2.5.2我在EclipseLink 2.5.3中解决了这个问题。感谢您报告问题。
I'm having this issue marshaling with an oxm xml meta data defined object graph
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBElement not found by org.eclipse.persistence.core [142] at
org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl
.java:1532) at
org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:75) at
org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.jav
a:1955)
Caused by: java.lang.NoClassDefFoundError: javax/xml/bind/JAXBElement
at org.eclipse.persistence.internal.oxm.ChoiceUnmarshalContext.getValue(ChoiceUnmarshalContext.java:70)
Without using an external defined oxm object graph it works..
I'm using the classloader to load the xml file from meta-inf
URL resource1 = this.getClass().getClassLoader().getResource("META-INF/contactsimpleoxm.xml");
URL resource2 = this.getClass().getClassLoader().getResource("META-INF/graph2oxm.xml");
I downloaded eclipselink-plugins-2.5.2.v20140319-9ad6abd.zip.and copied the files:
cp org.eclipse.persistence.antlr_3.2.0.v201302191141.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.antlr.jar
cp org.eclipse.persistence.asm_3.3.1.v201302191223.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.asm.jar
cp org.eclipse.persistence.core_2.5.2.v20140319-9ad6abd.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.core.jar
cp org.eclipse.persistence.dbws_2.5.2.v20140319-9ad6abd.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.dbws.jar
cp org.eclipse.persistence.jpa.jpql_2.5.2.v20140319-9ad6abd.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.jpa.jpql.jar
cp org.eclipse.persistence.jpa_2.5.2.v20140319-9ad6abd.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.jpa.jar
cp org.eclipse.persistence.moxy_2.5.2.v20140319-9ad6abd.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.moxy.jar
cp org.eclipse.persistence.oracle_2.5.1.v20130618-75cdba2.jar /opt/glassfish4/glassfish/modules/org.eclipse.persistence.oracle.jar
cp javax.persistence_2.1.0.v201304241213.jar /opt/glassfish4/glassfish/modules/javax.persistence.jar
I cleared the osgi-cache and restated glssfgish. The eclipse version reports correctly as 2.5.2
解决方案
I fixed this in EclipseLink 2.5.3. Thanks for reporting the issue.
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