IntelliJ freezes for about 30 seconds before debug

问题:

when i try to debug my java app the IDE freezes for about 30 seconds with the message: "Finished, saving caches"

After it unfreezes all works fine. It happens every time.

When i only run (not debug) it does not freeze.

What i tried:

• I changed the JDK on system.
• I changed the IntelliJ version.
• I change to IntelliJ Ultimate - trial.
• Invalidating the IDE's cache.
• Similar problem
• I also figured out that the given message exists only it this area of code - github-project so i changed the JVM options to give InteliJ more ram.

InteliJ build IC-141.1010.3.

When i try to debug in other IDE's it works fine, only InteliJ gets stuck...

I submitted a ticket to jetbrains too, but i know the power of StackOverflow :)

I have a MacBookPro 2015 and JDK 1.8

回答1:

If anyone else is still having this problem, I found this related issue on the IntelliJ board: https://youtrack.jetbrains.com/issue/IDEA-157303

It seems the problem is related to resolving hostnames. The recommended workaround is to include the following line in your /etc/hosts file:

127.0.0.1       localhost     <your hostname goes here>.local

And for IPv6 resolving, the same:

::1             localhost     <your hostname goes here>.local

回答2:

Well, the issue took me around 3 hours to find out how to overcome it. For anyone has tried "modifying etc host file" solution from Jayson Minard and still not worked. Just go to SystemPreference -> Sharing and turn on File Sharing. That's on and it will let you debug your Java app on IntelijIdea 2017 very very very fast !!!!!!

回答3:

The support from IntelliJ told me to try the IDE with bundled java.

http://download.jetbrains.com/idea/ideaIC-14.1.3-custom-jdk-bundled.dmg

And it works!

Edit:

IntelliJ support feedback: The problem was that there was a hang within java.net.Inet4AddressImpl.getLocalHostName(Native Method) JDK method call, which gets your system hostname. This is either JDK problem or local configuration issue...

The solution for this is here.