title: Java P2P framework NOT JXTA/JXSE
body: <p>I need a Java framework to implement a simple P2P protocol which should have at least the following features:</p>
  
  <ul>
  <li>peer organization (join, discovery)</li>
  <li>XML message exchange</li>
  <li>query</li>
  </ul>
  
  <p>I do not want to use JXTA/JXSE, any alternatives (a part from the DIY)?</p>