>             Is it that we have sendReceiveSync() method in
> org.apache.axis.clientapi.Call replaced by: 
> 
> public OMElement invokeBlocking(String axisop, OMElement toSend)? 
Yes

> This method takes an additional parameter axisop. What all values can it
> take and why has this been added? 
> I see a sample program passing "echo" to it, is there any predefined list
> from which these values are taken? 
It is the name of the Operation you want call in the ServiceEndpoint
.. echo is the name of the operation !

  
> Also, the return type has been changed to OMElement from SOAPEnvelope, if I
> pass a SOAPEnvelope, can I assume the response will be SOAPEnvelope as well
> and typecast safely? 

No the return type is a OMElment .. if u pass SOAPEnvelope it would be

<SOAPEnvelope ...>
<body>
    <SOAPEnvelope> ....</SOAPEnvelope>
</body>
 that goes on the wire !!

Thanks
Srinath

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