mac idea Class JavaLaunchHelper is implemented

objc[3648]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/bin/java (0x10d19c4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10ea194e0). One of the two will be used. Which one is undefined.

idea运行groovy包这个错，其实忽略不影响使用，强迫症可以通过如下方式解决：
Help -> Edit Custom Properties... -> 首次需要create配置文件

增加idea.no.launcher=true到配置文件中。

增加完配置后重启idea即可。