title: Eclipse JPA Facet reporting invalid query
body: <p>I am using Eclipse Kepler SR1 and the JPA facet keeps on telling me one of my queries is invalid:</p>
  
  <pre><code>SELECT DISTINCT l FROM Lobby l JOIN l.slots s WHERE s.id != 'l'
  </code></pre>
  
  <p>The identification variable '!=' is not defined in the FROM clause.
  The expression is not a valid conditional expression.</p>
  
  <p>It works when i change it to:</p>
  
  <pre><code>SELECT DISTINCT l FROM Lobby l JOIN l.slots s WHERE s.id = 'l'
  </code></pre>
  
  <p>Anything wrong with my join syntax or just a bug of the JPA facet? Hibernate reports no error.</p>
  
  <p>greetings </p>