title: Auto-completation of java doesn't work in atom
body: <p>I'm having a problem with atom, the auto-complete with java doesn't work.</p>
  
  <p>First of all, I have set atom to fully support Java, I've installed the following package:</p>
  
  <ul>
  <li>List item</li>
  <li>atom-ide-ui</li>
  <li>autocomplete-java-minus</li>
  <li>ide-java</li>
  <li>java-classpath-registry</li>
  <li>java-generator</li>
  <li>java-import-wiz</li>
  <li>java-plus</li>
  </ul>
  
  <p>And obviously, I have enabled all the necessary core package to do write some code with java.</p>
  
  <p>I've got an error that can help to find the issue, when I start the ide-ui it tells me this error</p>
  
  <pre><code>Classpath is incomplete. Only syntax error will be reported.
  Eclipse JDT.
  </code></pre>
  
  <p>And its advice me to check this link <a href="https://github.com/atom/ide-java/wiki/Incomplete-Classpath-Warning" rel="nofollow noreferrer">https://github.com/atom/ide-java/wiki/Incomplete-Classpath-Warning</a> for more information, but anyway, I don't know how to resolve it.</p>