Read Intro for this post and understand the problem here

Solution  : To integrate Jdeveloper with WebCenter Content PS5 and browse through the folders , we need to enable "folders_g" features instead of "Framework Folders" . Detailed steps below .

1. Login to Webcenter content using admin credentials

   https://<hostname>:<port number>/cs

2. Go to "Administration" menu and click on "Admin Server"
   
3.  In the newly opened browser , click on 'Component Manager' in the left navigation menu .
   
4. On the right hand side , you should see "Advanced Component Manager" , click on it .
5. You will now see a list of enabled and disabled features . Disable "Framework Folders" and enable "folders_g" folders . Restart the server .
   
6. There you go ! . You should have a successful connection and you should be able to traverse through the contribution folders from Jdeveloper.

I am posting a few pics to help you navigate the steps .