How to handle Maps in WebService

[vikram karne]

Hi Friends

I need some information on how to handle Maps in WebServices.
I have certain methods that i need to expose as a WebService.Some methods are like the one here public java.util.Map getVC(BigInteger Pk).
This method has a Map as a return type.Similarly the java.util.Map is a input parameter for certain methods to be exposed as a webservice.

Can anybody let me know how this conversion is to be handled in the Handler\Delegate Class . If you provide some code or guide me in this direction about this conversion then it will be very nice.

I am using .wsdd file for generation of the WSDL which i use later to generate the client side Stubs.

Thanks & Regards
Vikram K