idea mac debug 卡頓0-30秒問題

1，解決方案修改sudo vi /etc/hosts

127.0.0.1       localhost     <你的hostname>.local
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4  
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

https://bugs.openjdk.java.net/browse/JDK-8044306
這個就是jdk 8 的bug

解決方案
http://stackoverflow.com/questions/1881546/inetaddress-getlocalhost-throws-unknownhostexception