ADDITIONAL OS VERSION INFORMATION :
OS X 10.10

A DESCRIPTION OF THE PROBLEM :
Various GUI elements of wizard dialogs including "OK" and "Cancel" buttons of JDeveloper 12.2.1.0.0 do not respond to mouse clicks, if JDeveloper is run using JDK 8u45 or later JDK 8 release. Though the GUI elements can still be navigated using the keyboard.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Start JDeveloper.
2. Create ADF Fusion Web Application.
3. Create a new ADF Page, open the Source tab.
4. Drag and Drop Tree Table (Present under Data View).
5. If GUI elements of Tree Table wizard do not respond to mouse clicks, the issue is reproduced.