RubyMine fails to start on Yosemite

Question

RubyMine won't start under Yosemite, no loading screen, no error message.

This seems to be caused by the default JVM that comes with Yosemite

EDIT This also seems to affect WebStorm

Answer 1

This solution is controversial - please read all of it before applying changes!

Open this file

Check the version of Java, most likely 1.8, by using java -version, you should see something like:

java version "1.8.0_20"
Java(TM) SE Runtime Environment (build 1.8.0_20-b26)
Java HotSpot(TM) 64-Bit Server VM (build 25.20-b23, mixed mode)

Open and edit

/Applications/RubyMine.app/Contents/Info.plist

Or for WebStorm

/Applications/WebStorm.app/Contents/Info.plist

Update the following key

<key>JVMVersion</key>
<string>1.7*</string>

to

<key>JVMVersion</key>
<string>1.8*</string>

RubyMine should now be good to go

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Feedback on this solution

JetBrains do not recommend this solution as it will break autoupdating with patches. That tradeoff was acceptable for me as I just wanted to get going quickly and avoid installing Java 1.6.

The full discussion is here https://intellij-support.jetbrains.com/entries/27854363-IDE-doesn-t-start-after-updating-to-Mac-OS-Yosemite-or-Mavericks