Is java.project.referencedLibraries interpreted by jdt.ls and used to set the classpath?

[38leinaD]

I am using the sublime text jdtls integration. Basics work, but i am not able to add external jars to the classpath. I assumed adding a lib folder is sufficient because there is this default config:

"java.project.referencedLibraries": [
            "lib/**/*.jar"
        ],

in https://github.com/sublimelsp/LSP-jdtls/blob/main/LSP-jdtls.sublime-settings#L223-L225

Should this just work? What are my alternatives? i tried adding a .project and .classpath file but it also did not seem to pick it up?
Is this config generic and should work in any lsp using jdtls? Or is this something that requires explicit integration/coding that is missing in the sublime jdtls integration?

[38leinaD]

Anyone?