Can jdt.ls jump to definitions in third party libraries

For example

import org.springframework.context.annotation.Configuration;

Can jdt.ls be used to jump to the definition of that class ?

I am using the YouCompleteMe client and working in a gradle project.

There may be some mistake in my client configuration. Before diving into that, I wanted to make sure the server side is capable for that.

[mfussenegger]

Can jdt.ls be used to jump to the definition of that class ?

The server supports to jump to class files. But it is an extension and not part of the LSP standard.

To opt-in for this extension, the initialization options have to be extended:

extendedClientCapabilities = {
            classFileContentsSupport = true
        }

Once that is set, the client will start to receive Location items that have a jdt://... uri as response to textDocument/definition, textDocument/references and so on. This needs to be handled in a special way by the client.

Here is an example of how I customized the neovim built-in LSP client to do that.

[john-pt]

@ahakanbaba Hello, I was wondering if you were able to add this initialization option into YouCompleteMe configuration.