Axis error at client side on Weblogic8.1

[Hung Vu2000]

   Hi,
      I developed a webservice on JBoss and could access it successfully 
from a console client side of DII type . Now I move the source code from the 
console client to Weblogic 8.1. When I run the source code from Weblogic I 
had the below error. Thank to any suggestion.

Hung
Exception in sendOut
java.lang.NoSuchMethodError: getPrefix
at 
org.apache.axis.message.SOAPElementAxisImpl.<init>(Ljavax.xml.namespace.QName;Ljava.lang.Object;)V(SOAPElementAxisImpl.java:179)
at 
org.apache.axis.message.RPCParamElementImpl.<init>(Lorg.apache.axis.message.RPCParam;)V(RPCParamElementImpl.java:81)
at 
org.apache.axis.message.RPCElement.<init>(Ljava.lang.String;Ljava.lang.String;[Ljava.lang.Object;)V(RPCElement.java:154)
at 
org.apache.axis.client.Call.invoke(Ljava.lang.String;Ljava.lang.String;[Ljava.lang.Object;)Ljava.lang.Object;(Call.java:2522)
at 
org.apache.axis.client.Call.invokeInternal([Ljava.lang.Object;)Ljava.lang.Object;(Call.java:1976)
at 
org.apache.axis.client.Call.invoke([Ljava.lang.Object;)Ljava.lang.Object;(Call.java:1917)
at message.SendOutImpl.sendOut()V(SendOutImpl.jcs:79)
at 
jrockit.reflect.NativeMethodInvoker.invoke0(Ljava.lang.Object;ILjava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(Unknown 
Source)
at 
jrockit.reflect.NativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(Unknown 
Source)
at 
jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(Unknown 
Source)
at 
java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;I)Ljava.lang.Object;(Unknown 
Source)
at 
com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(Ljava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(DispMethod.java:367)
at 
com.bea.wlw.runtime.core.container.Invocable.invoke(Ljava.lang.Object;Ljava.lang.String;Lcom.bea.wlw.runtime.core.dispatcher.DispMethod;[Ljava.lang.Object;)Ljava.lang.Object;(Invocable.java:423)
at 
com.bea.wlw.runtime.core.container.Invocable.invoke(Lcom.bea.wlw.runtime.core.dispatcher.DispMethod;[Ljava.lang.Object;)Ljava.lang.Object;(Invocable.java:396)
at 
com.bea.wlw.runtime.jcs.container.JcsProxy.invoke(Ljava.lang.Object;Ljava.lang.reflect.Method;[Ljava.lang.Object;)Ljava.lang.Object;(JcsProxy.java:381)
at message.SendOut.sendOut()V(Unknown Source)
at message.SendOutTest.sendOut()V(SendOutTest.jws:16)

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