title: how to extend a list in spring config
body: <p>I have  defined a  with some "common" values. How can I extend the common list by additional values to various new beans?</p>
  
  <pre><code>&lt;util:list id="myCommonList" list-class="java.util.LinkedList"&gt;
   &lt;bean .../&gt;
   &lt;bean .../&gt;
   &lt;bean .../&gt;
   &lt;bean .../&gt;
  &lt;/util:list&gt;
  
  
  &lt;bean id="extension" parent="myCommonList"&gt;
    &lt;bean ref="additionalValue"/&gt;
  &lt;/bean&gt;
  </code></pre>
  
  <p>Will this overwrite the list or extend it?</p>