title: Jenkins plugin drop-down menu
body: <p>Somehow I am not able to store values from drop-down menus, that I added to the jelly.xml for my Jenkins plugin. Text fields work just fine on the other hand</p>
  
  <p>jelly:</p>
  
  <pre><code>&lt;f:entry title="Catch+ Version" field="selection"&gt;
    &lt;f:select/&gt;
  &lt;/f:entry&gt;
  </code></pre>
  
  <p>I added nothing to the databound constructor. Maybe this is already the problem. I didn't know how to add it, since it's not a string but a list?!</p>
  
  <p>So I only added the doFillSelectionItems function, which works as it should.</p>
  
  <pre><code>public ListBoxModel doFillSelectionItems()
  {
      return new ListBoxModel(new Option("1.13", "1.13"),
                      new Option("1.14", "1.14"),
                      new Option("1.15", "1.15"));
  }
  </code></pre>
  
  <p>and also to the configure method before save():</p>
  
  <pre><code>catchVersion = formData.getString("selection");
  </code></pre>
  
  <p>I can change between the three Options and the value is stored, no doubt. I can run the build several times and it's using the selected value, BUT: if I go to configure project again, always the first option is selected, no matter what I had chosen before. How can I make the stored value appear here?</p>