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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:
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
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Remove breakpoints off your method and use them inside the method as that can cause your debug to take a very long time. Try running IntelliJ as admin. I had this issue at work where debugging was extremely slow and running as admin actually made it a lot faster.
To solve this, simply remove the jar of the debugged module from all modules' dependencies in the Project Structure. If you do not know which modules have the debugged module jar as dependencies, you can use some tools (Eg. Sublime Text, bash, ...) to search for the module name which is stored in Intellij *.
Method breakpoints will slow down debugger a lot because of the JVM design, they are expensive to evaluate. Remove method breakpoints and consider using the regular line breakpoints. To verify that you don't have any method breakpoints open .
From the main menu, select Run | Edit Configurations. Alternatively, press Alt+Shift+F10 , then 0 . on the toolbar or press Alt+Insert . The list shows the run/debug configuration templates.
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
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 !!!!!!
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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.
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