Intellij idea 每次debug时卡在 "Finished, saving caches"。
"File → Invalidate Caches / Restart" 没有效果。
改/etc/hosts:
127.0.0.1 localhost <your hostname goes here>.local
::1 localhost <your hostname goes here>.local
参考：https://stackoverflow.com/questions/30625785/intellij-freezes-for-about-30-seconds-before-debugging
