Spring Webflow action-state else - spring-webflow

Question

I have a problem with a webflow action-state. The structure I want is:
if...else if....else if .....else
In my action state (see below),
I call getTestTypeName();
This method returns a string. There could be ten valid values
although currently there are only two.
However, I may also get an invald String which is not an error but
needs to be sent to a specified view-state.
How do I do this. Currently, I get an error
<action-state id="selectPostITSAction">
<evaluate expression="testEntranceViewService.getTestTypeName(flowScope.vwUser)" />
<transition on="ProgramChoiceTemplate" to="paymentGateway" />
<transition on="CPCFeedbackTemplate" to="report" >
<evaluate expression="testEntranceViewService.reactivateTestOnHold(vwUser, flowRequestContext)"
result="flowScope.vwUser" />
</transition>
<transition on="error" to="entry" />
</action-state>
"Prototype Test Template1467832258812" is an invalid option but I cannot handle with webflow. I get this error is
ExceptionNo transition was matched on the event(s) signaled by the [1] action(s) that executed in this action state 'selectPostITSAction' of flow 'flow-entry'; transitions must be defined to handle action result outcomes -- possible flow configuration error? Note: the eventIds signaled were: 'array['Prototype Test Template1467832258812']', while the supported set of transitional criteria for this action state is 'array[ProgramChoiceTemplate, CPCFeedbackTemplate, error]'org.springframework.webflow.engine.NoMatchingTransitionException

Answer 1

Ok, got it
The answer is to have a transition with no "on="
See below
<action-state id="selectPostITSAction">
<evaluate expression="testEntranceViewService.getTestTypeName(flowScope.vwUser)" />
<transition on="ProgramChoiceTemplate" to="paymentGateway" />
<transition on="CPCFeedbackTemplate" to="report" >
<evaluate expression="testEntranceViewService.reactivateTestOnHold(vwUser, flowRequestContext)"
result="flowScope.vwUser" />
</transition>
<transition to="expectedError" >
<transition on="error" to="entry" />
</action-state>