websphere6.1部署xfire+spring，报错：java.lang.ClassCastException：org.springframework

哪位大侠帮忙看下，实在是不解。多谢！
java.lang.ClassCastException: org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException incompatible with org.springframework.context.ApplicationContext
at org.codehaus.xfire.transport.http.XFireConfigurableServlet.loadConfig(XFireConfigurableServlet.java:76)
at org.codehaus.xfire.transport.http.XFireConfigurableServlet.createXFire(XFireConfigurableServlet.java:54)
at org.codehaus.xfire.transport.http.XFireServlet.init(XFireServlet.java:45)
at javax.servlet.GenericServlet.init(GenericServlet.java:256)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:227)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:320)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:435)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:481)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3507)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:269)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:815)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1466)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:122)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:458)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:387)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:267)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:196)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:751)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:881)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1497)