title: Eclipse autocomplete not working in some Java files
body: <p>I have noticed that autocomplete is not working in some of java files in Eclipse.
  Also, the files where autocomplete is not working, display a hollow "J" as the icon for the Java file. The files where autocomplete is working, icon for java file is a filled "J"</p>
  
  <p>I am wondering if someone can point out what went wrong all of suddent, why the change in icons and why autocomplete and syntax highlighting is turned-off in the files with a hollow "J" icon?</p>
  
  <p>Thanks.</p>
  
  <p><strong>update</strong></p>
  
  <p>Basically, I was doing what VonC has suggested but Eclipse was not refreshing that it why I was thinking that VonC's suggestion isn't working, after doing a refresh, the problem resolved.</p>