expcetion: java.lang.AbstractMethodError

[systek]

Hi:   After I complete the soap insatllation following your instruction, I try to run     java org.apache.soap.server.ServiceManagerClient http://127.0.0.1:7001/soap/servlet/rpcrouter list.   But there is an exception is throwed. Exception in thread "main" java.lang.AbstractMethodError         at org.apache.soap.util.xml.QName.<init>(QName.java:80)         at org.apache.soap.util.xml.QName.matches(QName.java:146)         at org.apache.soap.Envelope.unmarshall(Envelope.java:237)         at org.apache.soap.rpc.Call.invoke(Call.java:230)         at org.apache.soap.server.ServiceManagerClient.invokeMethod(ServiceManag erClient.java:129)         at org.apache.soap.server.ServiceManagerClient.list(ServiceManagerClient .java:151)         at org.apache.soap.server.ServiceManagerClient.main(ServiceManagerClient .java:237)   I don't know how to solve it. can you help me?   Thanks   Best Regards.