title: Netbeans, can't save edits I make on my project's files
body: <p>I got an existing Java project, with a <code>pom.xml</code> file, the project is using Maven. I can successfully open it with netbean, compile and run it. However when I want to make edits to the files, I can't save them (Save option is greyed in the File menu).</p>
  
  <p>I can edit the files with another editor and then use netbeans to compile them but it's a pain.</p>
  
  <p>Any idea about this behaviour ? I couldn't find similar issues on the web…</p>
  
  <p>I'm using :</p>
  
  <ul>
  <li>Netbeans 7.0.1</li>
  <li>Xubuntu 12.04</li>
  </ul>