WSIF Reports "Method nnnnn(param) was not found in portType'

All

Have been working with WSIF 2.0.1_IB3 and WSDL4J-20030807 and have been
successfully executing calls to web services. Our implementation which
invokes WSIF uses Axis (1.3) to generate interface stub classes/types for a
WSDL. For our purposes we cannot use dynamic invocation.

We recently tested against the following service 

	
http://www.holidaywebservice.com/Holidays/servicesAvailable_GBSCTHolidayDate
s.aspx

And in the course of executing the call the WSIF throws the following
exception

org.apache.wsif.WSIFException: Method getGuyFawkesNight(int) was not found
in portType
{http://www.27seconds.com/Holidays/GBSCT/Dates/}GBSCTHolidayDatesSoap
	at
org.apache.wsif.base.WSIFClientProxy.findMatchingOperation(WSIFClientProxy.j
ava:562)
	at
org.apache.wsif.base.WSIFClientProxy.invoke(WSIFClientProxy.java:205)
	at $Proxy0.getGuyFawkesNight(Unknown Source)
	... 

I searched the net high and low to find what the cause of this may be and I
am unable to find my answer. What is confusing is that many other services,
some having lots of complex types and generated code, all seem to work fine.
None exhibit this problem.

Would anyone perhaps have some insights into possibly why?

Regards

Jerome

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