Minimize does not work on mac:

[Peter Auerbacher]

Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: es.estoes.wallpaperDownloader.changer.MacOSWallpaperChanger cannot be cast to es.estoes.wallpaperDownloader.changer.LinuxWallpaperChanger
at es.estoes.wallpaperDownloader.util.WDUtilities.isMinimizable(WDUtilities.java:625)
at es.estoes.wallpaperDownloader.window.WallpaperDownloader.minimizeApplication(WallpaperDownloader.java:2617)
at es.estoes.wallpaperDownloader.window.WallpaperDownloader$2.windowStateChanged(WallpaperDownloader.java:380)
at java.awt.Window.processWindowStateEvent(Window.java:2137)
at java.awt.Window.processEvent(Window.java:2020)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

[Eloy García Almadén]

@Peter Auerbacher same for this issue. Fixes will be available in version 3.9 (now in devel branch too). I had to disable system tray icon in MacOSX in order to avoid problems

[Eloy García Almadén]

New version 3.9 is released with this issue fixed. Thanks for reporting!