I just updated to IntelliJ IDEA 2017.1 and now I get this error message every time on runtime:
objc[3318]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/bin/java (0x107a4c4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x107b144e0). One of the two will be used. Which one is undefined.
Everything works as usual. It's just really annoying to look at. I didn't have this error message before in the older version of IntelliJ.
If there is no fix is it then possible to just tell IntelliJ to not give me this specific error when I run my programs?