OpenRewrite unchecked, but always Language Server Background Job(Loading Rewrite Recipes)

[w6et]

Describe the bug

Version: 4.17.0.RELEASE
when i click "package Explorer" from "java Source Window"

[martinlippert]

Thanks @w6et for reporting this, the language server is probably loading the OpenRewrite recipes nevertheless the preference is disabled - and therefore doesn't need to do that. We should change that.

But the activity should really happen just once and not multiple times. Do you see this progress view entry multiple times? And do they run for a very long time (or even all the time)? Or do they disappear from the progress view again?

[w6et]

But the activity should really happen just once and not multiple times. Do you see this progress view entry multiple times? And do they run for a very long time (or even all the time)? Or do they disappear from the progress view again?

@martinlippert yes，happen multiple times, and highly increased memory consumption together.
I'm not sure how to trigger languageServer ，I guess（looks like by Progress view）

• hover on javaSourceWindow
• sendClasspathNotifications
• or other else,
  when javaSourceWindow hang or other else，started timeout，so languageServer has been launched multiple times.
  

[gbaso]

Same here, Eclipse is unusable due to this. Constantly freezes due to dozens of (hanging) background jobs and has to be force-killed.

[BoykoAlex]

@w6et @gbaso I'd like to check if there are more than one language server started in these case or is it just the progress that is never terminated.
II wonder if you could try the following:

1. Shut down STS and vodecode and make sure that jps command executed from the terminal does not have BootLanguageServerBootApp in the list of java processes.
2. Start STS, work with your java code. Once you notice multiple Loading Rewrite Recipes jobs in the progress dialog run jps command again and take a note of how many BootLanguageServerBootApp are there. Wait 30 sec and run jps again, check if number of BootLanguageServerBootApp has changed.

Also, I'm curious whether you are seeing multiple Loading Rewrite Recipes jobs at startup of STS or eventually after working in STS for some time. Do you recall performing changes to maven pom or gradle build files right before seeing those rogue jobs?

[martinlippert]

@w6et @gbaso Can you also enable the preference to push the logs from the Spring Boot language server via: Preferences -> Language Servers -> Spring Language Servers, then activate the Spring Boot entry, then retry the IDE. From there on, the log from the language server process appears in your Console view. Maybe you can paste the content of that log output while those problems appear that you describe?

In addition to that it would also be interesting to see if the problem completely goes away if you disable the Spring Boot language server altogether from the Preferences -> Language Servers list for all the file associations.