To open “Eclipse” you need to install the legacy Java SE 6 runtime
RecentlyijustupgradedmyMacbookProtothenewMacbookRetinaDisplay(mid2014)thatcomesdefaultwithOSXYosemite10.10.1.AfterinstallingJavaJDK1.8,allmyAndroidIDE(EclipseandAndroidStudio)workwellsoicancontinuemyd