java - 使用 JCL 找不到提供程序 com.bea.xml.stream.MXParserFactory

Question

我正在尝试开发一个应用程序，该应用程序使用以 stax-api 作为依赖项的库。作为独立应用程序构建它工作正常，但是当我尝试使用 JCL 在我的应用程序中组装的依赖项加载 JAR 时，我收到以下错误:

javax.xml.stream.FactoryConfigurationError: Provider com.bea.xml.stream.MXParserFactory not found
at javax.xml.stream.FactoryFinder.newInstance(FactoryFinder.java:72)
at javax.xml.stream.FactoryFinder.find(FactoryFinder.java:178)
at javax.xml.stream.FactoryFinder.find(FactoryFinder.java:92)
at javax.xml.stream.XMLInputFactory.newInstance(XMLInputFactory.java:136)
at org.codehaus.xfire.util.STAXUtils.<clinit>(STAXUtils.java:48)
at org.codehaus.xfire.transport.http.HttpChannel.writeWithoutAttachments(HttpChannel.java:54)
at org.codehaus.xfire.transport.http.CommonsHttpMessageSender.getByteArrayRequestEntity(CommonsHttpMessageSender.java:422)
at org.codehaus.xfire.transport.http.CommonsHttpMessageSender.send(CommonsHttpMessageSender.java:360)
at org.codehaus.xfire.transport.http.HttpChannel.sendViaClient(HttpChannel.java:123)
at org.codehaus.xfire.transport.http.HttpChannel.send(HttpChannel.java:48)
at org.codehaus.xfire.handler.OutMessageSender.invoke(OutMessageSender.java:26)
at org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:131)
at org.codehaus.xfire.client.Invocation.invoke(Invocation.java:79)
at org.codehaus.xfire.client.Invocation.invoke(Invocation.java:114)
at org.codehaus.xfire.client.Client.invoke(Client.java:336)
at eu.unicore.security.xfireutil.client.ReliableProxy.handleRequest(ReliableProxy.java:122)
at eu.unicore.security.xfireutil.client.ReliableProxy.doInvoke(ReliableProxy.java:102)
at eu.unicore.security.xfireutil.client.ReliableProxy.invoke(ReliableProxy.java:69)
at com.sun.proxy.$Proxy71.QueryResourceProperties(Unknown Source)
at de.fzj.unicore.wsrflite.xmlbeans.client.BaseWSRFClient.queryResourceProperties(BaseWSRFClient.java:372)
at de.fzj.unicore.wsrflite.xmlbeans.client.RegistryClient.listServices(RegistryClient.java:199)
at de.fzj.unicore.wsrflite.xmlbeans.client.RegistryClient.listAccessibleServices(RegistryClient.java:214)
at org.caebeans.wsrf.UNICOREModule.initialize(UNICOREModule.java:53)
... 9 more

比较奇怪，这个类是组装到JAR里的，我在archive里能找到。

Answer 1

当应用程序服务器库先于应用程序库加载时，我看到过这种消息。通常有一个设置可以让您指定相反的顺序。如果看起来您正在使用 Weblogic，则可以通过在 weblogic.xml 文件中插入以下定义来实现:

<container-descriptor>
  <prefer-web-inf-classes>true</prefer-web-inf-classes>
</container-descriptor>