I m running into an issue where gradle 6 7 1 is getting stuc

Question

I m running into an issue where gradle 6 7 1 is getting stuck while building my kotlin 1 4 20 project I ve tried deleting `~ gradle` and `project gradle` folders but the issue seems to persist Its getting stuck during some kapt dependent tasks which get called from `gradle core classes` Anyone else experiencing similar

eskatos · Answer

If the Gradle daemon is stuck then a thread dump would help understand what is happening

eskatos · Answer

See <https www baeldung com java thread dump>

tim · Answer

Posted the dump here <https pastebin com gevDwqFV>

eskatos · Answer

This looks like a thread dump from the command line client not the Gradle daemon

eskatos · Answer

```user host $ jps | grep Gradle 302357 GradleDaemon 302323 GradleWrapperMain``` The above shows two Gradle processes you need a thread dump of the `GradleDaemon` one

tim · Answer

ahh k sorry

eskatos · Answer

I m leaving the keyboard if you don t see anything obvious in the thread dump you might want to open an issue on `gradle gradle` with the thread dump attached and as much detail as you can about your build

tim · Answer

okay thank for the help

tim · Answer

will try and get the dump from GradleDaemon Currently kill 3 PID doesn t dump to std out so will inestigate some of the other methods referrend to above

eskatos · Answer

Yes daemon stdout is redirected to the logs Better make it dump to a file it ll be easier

tim · Answer

thumbsup i ve got it with jstack will review it shorlty

tim · Answer

tim · Answer

will review it shortly to see if anything jumps out

tim · Answer

yep gibberish to me slightly smiling face I will try and recreate in a fresh repo and if its still failing then i ll create an issue on githib

eskatos · Answer

You could also give 6 8 rc 1 a try

tim · Answer

I ve tried with gradle 6 6 and jdk 13 but no go Also tried building inside a docker container again no go I think the issue might be something Arrow is doing but still trying to narrow it down to exactly what So not sure if its gradle or arrow at the moment

tim · Answer

Same issue on 6 8 rc 1 still trying to figure our which bit of code actually causes the error Been removing a folder at a time to find the point at which it compiles weary

tim · Answer

I think I ve found the issue There is a data class in my code that has an error in it its using a type that isn t available and its using Arrow s optics annotation If i remove the ` optics` annotation then gradle spits out the error from during compileKotlin task and exits If I fix the missing type then it compiles correctly

tim · Answer

I m not sure if this is a gradle kapt or arrow issue

eskatos · Answer

Given the symptoms I would start by reporting that at the Kotlin issue tracker Ideally you can reproduce that in a small shareable build

eskatos · Answer

tim · Answer

thumbsup