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Created attachment 153414 [details] Corrupted combo box If I have a normal combo box in a platform application and the items of the combo box are not drawn until I press a key or move the mouse over the items. If I do the same in a plain swing application all is working fine. The same is sometimes happening in the editor with the popup menu suggesting method names. The issue is showing under a Retina Macbookpro with JDK 1.8u45 and NB 8.0.2. I have attached the issue as a screenshot and a sample program showing it that it is working under plain swing.
Created attachment 153415 [details] Simple swing application with a combo box showing the all is working
Can you please provide a sample platform application where the combo boxes are not drawn properly? In the dialogue in the screenshot, are you using just a Swing code, or also some NetBeans UI classes? Are all UI components accessed on the event dispatch thread? Are other combo boxes, that are a regular part of NetBeans IDE also suffer from similar problem?