GpelActivity next = iterator.next();
if(isSequence(next) || isFlow(next)){
evaluateFlowAndSequenceForAddingInits(wsdls, workflowWSDL, next, list);
}else if(isInvoke(next) || isReply(next)){
if(last == null || !isAssign(last)){
throw new XBayaRuntimeException("Assign activity not found for the Invoke "+next.xmlStringPretty());
}
GpelAssign assign = (GpelAssign)last;
XmlNamespace ns = assign.xml().getNamespace();