title: Eclipse Oxygen undo/redo not working
body: <p><strong>Edit:</strong> After installing Oxygen 1.a via zip file everything works normally.</p>
  
  <p>I just set up Eclipse Oxygen on a new laptop, and I've found that the undo/redo features aren't properly working. Whenever I write or delete a line of code it does not come up as a clickable button in the menu, nor do the shortcuts for it work. I am using the following version, and I am on Windows 10.</p>
  
  <p>Version: Oxygen.2 Release (4.7.2)
  Build id: 20171218-0600</p>