negative index for a indexed property ?

[carlos olmos]

Hello:

Have you ever seen a construction like this?

<logic:iterate id="aprov" name="scm" property="vbs[-1].aprVbItem">
  <tr>
    <td ><bean:write name="aprov" property="user.name"/></td>
    <td ><bean:write name="aprov" property="dataCad.time"/></td>
  </tr>
</logic:iterate>

Any idea of what could it means with vbs[-1] ?

Vbs is an ArrayList of Vballs objects inside scm, and aprVBItem is an ArrayList of Strings inside every Vballs object.

Thanks in advanced...

Carlos Olmos.