IntelliJ Freezes when Indexing

[kaiser-chris]

Hi,

first of all I love this Plugin and your work.

But every plugin version after 1.3.12 freezes my IDE when indexing. When I downgrade the plugin manually it works without issues. Below are details about the issue.

IDE Version:

• IntelliJ 2024.2 (Clean new install with just this plugin)
• IntelliJ 2024.1.x (Old Install)

Plugin Settings:

• Game:
  • Victoria 3 (Current game version 1.7.5)
  • Unsubscribed all Workshop mods
  • Removed all mods from \Paradox Interactive\Victoria 3\mod
• Mod Projects Tested:
  • Complex mod with hundreds of files
  • Empty mod (Example)
  • descriptor.mod
  • .metadata/metadata.json

Behavior:

• First Load after Plugin install:
  • Project Opens as normal in IntelliJ
  • Everything works
  • Plugin starts indexing
  • Still working
  • Indexing reaches its end (according to IDE progressbar in footer)
  • IDE freezes
  • Nothing is clickable
  • IDE has high CPU usage (>10% instead of ~1%)
  • No progress after hours (Tried leaving it running for 3 hours while doing something else)
  • IDE UI does not update and turns background grey after dragging it
  • Only way to close it is via Task Manager
  • Starting the IDE after killing it before:
  • IDE freezes instantly because it wants to finish indexing
    • Same behaviour as above
  • Other Projects (e. g. Java)
  • Works as normal

Regards,

Chris

[Decent-Name-Here]

I've been having a similar issues with HOI4. Either it hangs on two specific files or just freezes midway through loading a project

other projects seem to load perfectly fine

Im not very well versed in the technical backend of this stuff but i can lend logs or whatever if needed

[DragonKnightOfBreeze]

Your IDE may be reinstalled, but your IDE's cache and indices may not be invalidated, try:

1. Invalidate cache and restart
2. Produce the freeze log (when IDE freezes wait for a minute first kill second and restart 3rd, then should get the freeze log, it's unnecessary to restart and reopen same project)

[kaiser-chris]

Ok I had previously tried invalidating cache (forgot to mention in my inital post), but I tried it again and behaviour keeps to be the same. Also in my test again I noticed it always seems to get stuck at the same file:

Thread Dump from Freeze Logs: threadDump-20240812-041001.txt

(EDIT) File that is shown in Screenshot (If you do not have the game): log_settings_live.json

[DragonKnightOfBreeze]

Nothing found from above freeze logs, could thread dump log be provided when IDE is freezing? (use jstack -l <pid> command, pid of IDEA can be found in Profier tab)

[DragonKnightOfBreeze]

Perhaps I should debug vic3 game directory by myself

[kaiser-chris]

@DragonKnightOfBreeze If you look at the logs you can see that _ParadoxScriptLexer is running. Also from my screenshot you can see that it is parsing log_settings_live.json when the UI last updated. Have you tried running that file (I attached the file, from the game folder) through your lexer by hand or putting it in another game folder to see what happens? Maybe your Paradox File Lexer runs into an infinite Loop parsing a JSON file.

Should it even try to parse a JSON file using your Paradox Script Lexer? Maybe that is the issue?

[DragonKnightOfBreeze]

It does not mean that, if there is _ParadoxScriptLexer in stacktrace, there is some problems in the file currently opend, shown in editor, or focused, or in the progress bar. ParadoxScriptLexer is only for paradox script files, normally *.txt files. If the freeze log is so, there may be a paradox script file, that plugin cannot normally parse it, and will cause freezing.

[DragonKnightOfBreeze]

How about the memory have you given to IDEA? Normally, it should be 4G+ or even 8G+. If IDEA's memory is not enough, various strange problems may be produced.

[kaiser-chris]

I have not configured any memory limit and my computer has 32gb ram

[DragonKnightOfBreeze]

Then it may be necessary to configure

[kaiser-chris]

It was 4gb. I set it to 8gb. Same behaviour.

[DragonKnightOfBreeze]

Nothing found from above freeze logs, could thread dump log be provided when IDE is freezing? (use jstack -l <pid> command, pid of IDEA can be found in Profier tab)

Could you please provide a thread dump log by jstack when IDE is freezing? You can follow this screenshot:

[kaiser-chris]

Hi,

attached is the log: jstack.log

Edit: I created another few logs after a few minutes. It seems to have a few less threads but now the amount is stable so may want to use this one: jstack2.log

[DragonKnightOfBreeze]

Simply typing @@@ in a script file will cause this issue (ide freeze, infinite loop in lexer)

[DragonKnightOfBreeze]

Should be fixed in 1.3.18 (will be released in few days)

[kaiser-chris]

Thank you!