[Axis2] Operation name inclue in the call.invokeXXX() methods

[Saminda Abeyruwan <sa...@opensource.lk>]

Hi all,

When we use call.invokeXXX(String opName,OMElement element,...), 
mandatory we provide the operation name. But even if the operation name 
is just nothing ("") without putting "null", we would be able to get the 
right response.

What would be the use case of putting the operation name in client side, 
for the prior method signature.

Thanks

Saminda