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更新：仅当我尝试在启动应用程序后立即使用Web服务时才会出现ClassNotFoundException。如果我等待（对于某些未知事件/持续时间），则应用程序将起作用。我想知道我需要等待什么。启动后调用WebService时发生WebSphere ClassNotFoundException（但不迟于）
问题：因为确实存在一类不被一个类加载器发现我的应用程序失败。
更多信息：
不能被发现的类是com.sun.xml.stream.ZephyrParserFactory。我的EAR有sjsxr.jar。此jar包含类别com.sun.xml.stream.ZephyrParserFactory
EAR还包含MyApp.jar，它包含应用程序的EJB入口点。该MyApp.jar清单引用所有需要的jar文件，包括sjsxr.jar
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.1
Created-By: 1.5.0_18 (Sun Microsystems Inc.)
Built-By: GMM Development Team
Class-Path: aopalliance-1.0.jar commons-codec-1.4.jar commons-collecti
ons-3.1.jar commons-lang-2.1.jar commons-logging-1.1.1.jar ehcache-co
re-2.1.0.jar ehcache-spring-annotations-1.1.2.jar joda-time-1.6.1.jar
log4j-1.2.16.jar org.springframework.context.support-3.0.4.RELEASE.j
ar sjsxr.jar slf4j-api-1.6.1.jar slf4j-log4j12-1.6.1.jar spring-aop
-3.0.4.RELEASE.jar spring-asm-3.0.4.RELEASE.jar spring-beans-3.0.4.RE
LEASE.jar spring-context-3.0.4.RELEASE.jar spring-core-3.0.4.RELEASE.
jar spring-expression-3.0.4.RELEASE.jar spring-jdbc-3.0.4.RELEASE.jar
spring-tx-3.0.4.RELEASE.jar swiftVal.jar velocity-1.5.jar vm-startup
.jar xbean.jar
应用程序包含WebSphere的wsimport工具生成的Web服务客户端代码。当应用程序试图调用这个代码，以下异常被抛出：
EJB threw an unexpected (non-declared) exception during invocation of method
"messageIn" on bean "BeanId(MyApp#ejb.jar#NodeEJB, null)".
Exception data: javax.xml.stream.FactoryConfigurationError: Provider
com.sun.xml.stream.ZephyrParserFactory not found
at javax.xml.stream.XMLInputFactory.newInstance(Unknown Source)
at org.apache.axiom.om.util.StAXUtils$7.run(StAXUtils.java:327)
at java.security.AccessController.doPrivileged(AccessController.java:202)
at org.apache.axiom.om.util.StAXUtils.getXMLInputFactory_perClassLoader(StAXUtils.java:323)
at org.apache.axiom.om.util.StAXUtils.getXMLInputFactory(StAXUtils.java:78)
at org.apache.axiom.om.util.StAXUtils.createXMLStreamReader(StAXUtils.java:133)
at org.apache.axis2.util.XMLUtils.toOM(XMLUtils.java:596)
at org.apache.axis2.util.XMLUtils.toOM(XMLUtils.java:581)
at org.apache.axis2.deployment.DescriptionBuilder.buildOM(DescriptionBuilder.java:97)
at org.apache.axis2.deployment.AxisConfigBuilder.populateConfig(AxisConfigBuilder.java:90)
at org.apache.axis2.deployment.DeploymentEngine.populateAxisConfiguration(DeploymentEngine.java:641)
at com.ibm.ws.websvcs.deployment.WASAxis2ConfigurationBuilder.loadAxisCfg(WASAxis2ConfigurationBuilder.java:492)
at com.ibm.ws.websvcs.deployment.WASAxis2ConfigurationBuilder.loadAxisClientConfiguration(WASAxis2ConfigurationBuilder.java:191)
at com.ibm.ws.websvcs.client.WSClientConfigurationFactory.getConfigContext(WSClientConfigurationFactory.java:271)
at com.ibm.ws.websvcs.client.WSClientConfigurationFactory.getClientConfigurationContext(WSClientConfigurationFactory.java:236)
at org.apache.axis2.jaxws.description.impl.DescriptionFactoryImpl.createServiceDescription(DescriptionFactoryImpl.java:92)
at org.apache.axis2.jaxws.description.impl.DescriptionFactoryImpl.createServiceDescription(DescriptionFactoryImpl.java:79)
at org.apache.axis2.jaxws.description.DescriptionFactory.createServiceDescription(DescriptionFactory.java:76)
at org.apache.axis2.jaxws.spi.ServiceDelegate.<init>(ServiceDelegate.java:212)
at org.apache.axis2.jaxws.spi.Provider.createServiceDelegate(Provider.java:59)
at javax.xml.ws.Service.<init>(Service.java:67)
at my.generated.Web_Service.<init>(Web_Service.java:44)
...
Caused by: java.lang.ClassNotFoundException: com.sun.xml.stream.ZephyrParserFactory
at java.lang.Class.forNameImpl(Native Method)
at java.lang.Class.forName(Class.java:136)
at javax.xml.stream.FactoryFinder.newInstance(Unknown Source)
at javax.xml.stream.FactoryFinder.find(Unknown Source)
at javax.xml.stream.FactoryFinder.find(Unknown Source)
... 101 more
我已确认过五六次的班，罐子和舱单前和部署后是正确的。
我也尝试重命名sjsxr.jar以避免任何潜在的日食，但问题并没有消失。
我使用的是WebSphere 7.0.0.11 ND
谁能帮助？
您可以发布sjsxr.jar的MyApp.jar清单条目吗？ – crnlx 2010-11-30 03:13:59
添加了清单编辑了问题。 – Synesso 2010-11-30 03:32:45