Kotlin language server is activated for Java project without kotlin

I have a VScode workspace containing multiple Java projects. None of these projects contains kotlin files. However I noticed that the Kotlin plugin is stilling scanning all my Java projects for dependencies on the output log. These behaviour is weird, none of my projects contains Kotlin source code and this scanning process took a lot of time.

Start by reproducing the issue in a VSCode workspace containing only Java projects and inspect the output log to identify when the Kotlin language server scans for dependencies. Trace the extension's activation and project-detection entry points; done means Kotlin is not activated or scanning for workspaces with no Kotlin files.

Written by the indexing model from the issue text.