Intellli IDEA 14 under Mac gets stuck at startup, just turn around and make some changes, go to /Applications to find IntelliJ IDEA, right-click -> Show Package Contents -> Contents->Info.plist, use a text editor or the default Open the file with xcode and find the following code
<key>JVMVersion</key>
<string>1.6*,1.7+</string>
change to
<key>JVMVersion</key>
<string>1.7*</string>
Enough