Does SOAPUI 4.0.1 Support "substituteGroup" tag in XSDs ?

Hi All 

I am using SOAPUI 4.0,1

I have generated Java classes using a WSDL file 

I have created a JAR out of the created classes and imported that in our project 

Now when i try to read the response from SOAP UI Mock service and it is throwing arrayStore exception while populating the response classes  

But when i manualy read the response XML file (Java file read) without any mock service I am able to populate the response classes without any issue 

upon investigating it was found that the Tag which i read has an XSD  attribute "substituteGroup" of another tag 

Soap UI is not able to get that relation between them 

 <xs:element name="tagB" type="i:tagAtype" substitutionGroup="i:tagA" nillable="true" />

SOAPUI is able to accept only tagA in the XML, and when tagB comes it throws arrayStoreException 

Does SOAPUI have an issue regarding the "substitutionGroup" handling ? 

Please advice

Thanks and Regards

-

Vignesh.M