Take a look at chapter 3 of the spring reference documention for details on how to define something like that in a Spring application context (http://static.springframework.org/sp...nce/beans.html).
You would end up with something like this:
Code:
<bean id="a" class="A">
<property name="bList">
<list>
<ref bean="b0"/>
<ref bean="b1"/>
</list>
</property>
</bean>
<bean id="b0" class="B">
<property name="prop" value="foo"/>
</bean>
<bean id="b1" class="B">
<property name="prop" value="bar"/>
</bean>
Erwin