language server configuration

[brown]

I am having trouble using the Eclipse Java language server with Emacs and Eglot.

As far as I can tell, there's no way for Eglot to send the Eclipse Java language server information such as: the Java classpath, the set of source jars to use for documentation, and the location of the JDK. Generally, configuration information like this is transmitted from Eglot to the language server right after the language server is started up. I believe Eglot uses the LSP feature named "workspace/didChangeConfiguration" when it sends configuration info.

[fbricon]

You can send the settings during initialization, like in #3108 (comment) but there might still be a bug in jdt.ls with nested config #3108 (comment).
I personally don't use or know anything about eglot, so maybe ask more pointers from the Eglot community.