title: Why are packages suddenly greyed out in Eclipse?
body: <p>I have been working on an inherited webapp project and a few hours ago I exported to war file. I imported from the war file on another system (Ubuntu) and noticed all the project's packages are greyed out. Some I can expand others I can't.<br>
  Deploying the project in a container works fine, and does show the updates I made, however I can't get at the packages, or files I edited. </p>
  
  <p>I have researched online and gotten no closer to an answer so far.<br>
  Any reason as to what's happening? I use Eclipse 3.7 on both systems.</p>