webservice问题，java调用webservice方法报错

Exception in thread "main" java.lang.NoSuchMethodError: org.apache.commons.httpclient.MultiThreadedHttpConnectionManager.setParams(Lorg/apache/commons/httpclient/params/HttpConnectionManagerParams;)V
at org.codehaus.xfire.transport.http.CommonsHttpMessageSender.createClient(CommonsHttpMessageSender.java:228)
at org.codehaus.xfire.transport.http.CommonsHttpMessageSender.open(CommonsHttpMessageSender.java:129)
at org.codehaus.xfire.transport.http.HttpChannel.sendViaClient(HttpChannel.java:121)
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 org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:77)
at org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
at $Proxy0.Personnelxml(Unknown Source)