In any case, that wasn't sufficient - I also had to change the JDK ist and security as described above for a complete solution. However, I'm not sure that's strictly required. When I was solving this on MTGBrowser (below) I also followed advice to change the ist of the app by adding the following section to the 'Eclipse' key: -vm/Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/bin/java This opens Eclipse without requiring the separate download of the legacy Java SE 6 files. Go to System Preferences: Security Settings (General) and you should see the recent app next to a button 'Open Anyway' - click this button to open the app.

You should get an error '(app) can't be opened because it is from an unidentified developer.' Try to open the app from the command-line (not sure if this is strictly necessary, but what I did) Other configurations might work this is my environment.Įdit the ist for the JDK after installing: $ sudo nano `/usr/libexec/java_home -V`/./istĬhange the following section: JVMCapabilities Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode) Java(TM) SE Runtime Environment (build 1.8.0_25-b17)

Here are the steps in case it helps other devs get Eclipse working. I just encountered this in another Eclipse-based app on Yosemite and figured out (with help from the references below) how to get the app running without installing the legacy Java SE 6 JRE.

Download java se 6 runtime