Notifications not working (publishDiagnostics)

[cdietrich]

it looks like publishDiagnostics notifications are not processed by the client.
(tested with a langium and a Xtext based server)
what do ne need to do to get notifications like publishDiagnostics to work?
in MessageHandler i see normal request response messages but no notification messages

my client adaption can be found here
master...cdietrich:lsp4intellij:cd_dmodel

my server here:
https://github.com/cdietrich/xtext-domainmodel-ls

[cdietrich]

did some debugging. 1st problem was that the client cannot handle the servers serverCapabilities.getTextDocumentSync == TextDocumentSyncKind.Incremental
what that patched in RequestManager i can at least see the notifications arrive at the client

but the DaemonCodeAnalyzer.getInstance(project).restart(file); does not seem to call into LSPAnnotator (got this running setting language on the annotator

[jnt0r]

I also ran into this problem. LSPAnnotator runs but never finds any diagnostics as they are never received from the LSP Server.

[jnt0r]

I wonder why getInitParams() in LanguageServerWrapper does not set the capability for publishDiagnostics and other diagnostics as these features are implemented. Does this mean the LSP server does not send diagnostics as the client says he is not able to handle it?