title: opensource network monitoring tools developed in java
body: <p>i want to know the best opensource network monitoring tool developed in java with very good support via forums and which should have the following features ..</p>
  
  <ul>
  <li>Fault and Alert mgmt </li>
  <li>Performance Poll graphs</li>
  <li>inventory mgmt</li>
  <li>config management</li>
  </ul>