Problemas com XFire

Eu estou montando um webservice com Xfire mais estou tendo alguns problemas, qdo eu rodo o cliente pra usar um serviço meu ele gera a seguinte exceção :

Exception in thread "main" 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:47)
        at org.codehaus.xfire.util.jdom.StaxBuilder.<init>(StaxBuilder.java:150)
        at org.codehaus.xfire.aegis.type.XMLTypeCreator.getDocument(XMLTypeCreator.java:93)
        at org.codehaus.xfire.aegis.type.XMLTypeCreator.findMapping(XMLTypeCreator.java:163)
        at org.codehaus.xfire.aegis.type.XMLTypeCreator.createClassInfo(XMLTypeCreator.java:268)
        at org.codehaus.xfire.aegis.type.AbstractTypeCreator.getElementName(AbstractTypeCreator.java:339)
        at org.codehaus.xfire.aegis.AegisBindingProvider.getSuggestedName(AegisBindingProvider.java:220)
        at org.codehaus.xfire.service.binding.DefaultServiceConfiguration.getInParameterName(DefaultServiceConfiguration.java:160)
        at org.codehaus.xfire.service.binding.ObjectServiceFactory.getInParameterName(ObjectServiceFactory.java:1018)
        at org.codehaus.xfire.service.binding.ObjectServiceFactory.addOperation(ObjectServiceFactory.java:776)
        at org.codehaus.xfire.service.binding.ObjectServiceFactory.initializeOperations(ObjectServiceFactory.java:720)
        at org.codehaus.xfire.service.binding.ObjectServiceFactory.create(ObjectServiceFactory.java:418)
        at org.codehaus.xfire.demo.BookClient.main(BookClient.java:21)

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.codehaus.xfire.spring.ServiceBean' defined in class path resource [META-INF/xfire/services.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: null
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:370)
	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)
	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)
	org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:275)
	org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:320)
	org.codehaus.xfire.spring.XFireConfigLoader.getXFireApplicationContext(XFireConfigLoader.java:107)
	org.codehaus.xfire.spring.XFireConfigLoader.loadContext(XFireConfigLoader.java:41)
	org.codehaus.xfire.transport.http.XFireConfigurableServlet.loadConfig(XFireConfigurableServlet.java:86)
	org.codehaus.xfire.transport.http.XFireConfigurableServlet.createXFire(XFireConfigurableServlet.java:54)
	org.codehaus.xfire.transport.http.XFireServlet.init(XFireServlet.java:45)
	javax.servlet.GenericServlet.init(GenericServlet.java:211)
	org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
	org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
	java.lang.Thread.run(Thread.java:595)


note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs.