Circular depedency issue - one with constructor arg, one with setter

I have two beans, defined as:

<bean id="cspTransportFactory"
     class="com.mycompany.CSPCompatibleTransportFactory">
<constructor-arg index="0" ref="cspClient" />
</bean>

<bean id="cspClient" class="org.apache.xmlrpc.client.XmlRpcClient" >
<property name="transportFactory" ref="cspTransportFactory" />
</bean>

Spring is choking at startup with error:
Caused by: 
org.springframework.beans.factory.BeanCurrentlyInCreationException: 
Error creating bean with name 'cspTransportFactory': Requested bean is 
currently in creation: Is there an unresolvable circular reference?

Previously I was able to construct these beans by injecting instances 
into one another before calling setter method:

XmlRpcClient client = new XmlRpcClient();
CSPCompatibleTransportFactory tf = new 
CSPCompatibleTransportFactory(client);
client.setTransportFactory(tf);

Note that I don't have control over the fact that the 
cspTransportFactory uses constructor injection because I'm extending 
another API class. Spring can construct a circular dependency in the 
same matter when two classes use strictly setter injection. Shouldn't it 
be able to do the same when one of the two classes uses CI?

------------------------------------------------------------------------------