IntelliJ freezes

[mossmana]

After installing the plugin from disk, when opening a Flutter project, IntelliJ freezes (i.e. becomes non-responsive to keyboard/mouse).

Though this has been reported in a non-virtualized environment, I have found this issue reliably reproduces in a UTM virtualized environment - aarch64 mac, with 8 GB of memory and a 30 GB HD.

1. Install IntelliJ 2025.1
2. Install the release_85 | 2025.1 plugin from disk
3. Open any flutter project (I just opened a newly created project using flutter create)
4. IDE freezes

[mossmana]

Could be related to:
at io.flutter.pub.PubRoot.forDirectory(PubRoot.java:148) at io.flutter.pub.PubRootCache.getRoots(PubRootCache.java:71) at io.flutter.utils.FlutterModuleUtils.declaresFlutter(FlutterModuleUtils.java:328) at io.flutter.utils.FlutterModuleUtils$$Lambda/0x00000008012d27b0.test(Unknown Source) at java.util.stream.MatchOps$1MatchSink.accept(java.base@21.0.3/MatchOps.java:90)

or

https://b.corp.google.com/issues/303127400?pli=1

[jwren]

After spending some time myself looking at the issue, my current hypothesis is that it is related to the PubRoot stacktrace that you listed above, it was the only Flutter stack trace that I found in a profiler from the Flutter IJ plugin when the IDE was frozen. Uninstalling the Flutter IJ plugin yielded the IDEA platform not locking up.

I witnessed the behavior in 2023.3, 2024.1, 2024.2, and 2024.3 as well, since these are compiled with the other version of Java (before your recent PR), you have successfully ruled out the idea of upgrading Java as solution here.

[AlexV525]

I do have a similar behavior when using my built plugin on Windows during my work in #7949 (comment). I don't have a stack trace about PubRoot though.

EDIT: The issue seems only reproducible when opening the flutter-intellij project on my side, other projects seem unaffected.

[kishormainali]

@jwren is there any timeline for new release with these fixes?

[jwren]

@kishormainali This issue was never pushed out. We stopped the release of M84.

M85 is being actively tested and will be pushed out soon unless additional issues are discovered.

[jwren]

Closing this issue, as I haven't seen it since landing #7981