weblogic.application.ModuleException:

weblogic10.0部署工程的时候报错，怪异
weblogic.application.ModuleException: Failed to load webapp: 'WebRoot'
        at weblogic.servlet.internal.WebAppModule.prepare(WebAppModule.java:308)
        at weblogic.application.internal.flow.ScopedModuleDriver.prepare(ScopedModuleDriver.java:176)
        at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:93)
        at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:360)
        at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
        Truncated. see log file for complete stacktrace
java.lang.ClassCastException: org.apache.xerces.jaxp.DocumentBuilderFactoryImpl
        at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:98)
        at com.bea.core.repackaged.springframework.beans.factory.xml.DefaultDocumentLoader.createDocumentBuilderFactory(DefaultDocumentLoader.java:88)
        at com.bea.core.repackaged.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:70)
        at com.bea.core.repackaged.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:388)
        at com.bea.core.repackaged.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:340)
        Truncated. see log file for complete stacktrace