title: JDeveloper designer not rendering
body: <p>For some reason, in JDeveloper, trying to add a new .jsf page, it stalls at showing "Waiting for Designer to initialize Rendering page" and never completes the designer view. </p>
  
  <p>Windows 7,
  Oracle JDeveloper 12c,
  Studio Edition Version 12.2.1.3.0,
  java version "9.0.1",
  Java(TM) SE Runtime Environment (build 9.0.1+11)
  Java HotSpot(TM) 64-Bit Server VM (build 9.0.1+11, mixed mode)</p>
  
  <p>Is there a version conflict or update needed?
  thx</p>