Vladimir Piskarev

Hi @tmssngr - although not exactly what you ask - when searching for "lsp4j tutorial" I have found a number of useful links, including the following: - [Build Language Servers...

FWIW, I have updated the LSP4J Tutorial in my personal fork to make it compile and run with the current version of LSP4J: https://github.com/pisv/LSP4J_Tutorial. I think there is still room...

@tmssngr You need to open this file with with the Target Editor (right-click on the file, choose Open With > Target Editor). Then, in the Definition tab, click on **Set...

Sorry, I did not notice that the original tutorial was vague about what Eclipse installation you need for exercises, and have not fixed it yet. Please ensure you have Eclipse...

@tmssngr Thanks for the feedback. I can reproduce the issue. It is sufficient to open the `exer1.txt` file with the Generic Editor and wait long enough for the following exception...

@tsmaeder Thank you for taking a look at it. It is very strange that you don't even get dirty diff annotations in the editor gutter. Something seems to be missing...

> Doing the same workflow on a mac works. The structure of the html looks very different in both cases: "margin-view-overlays" seem to be completely absent in the Window case....

@tsmaeder I hope that the issues found so far are fixed now. For the sake of convenience, I pushed separate commits, which are intended to be squashed when the review...

Converted to draft, as the dirty diff peek view no longer works when this PR is rebased on the current master. Perhaps not surprisingly, given that #13217 was merged earlier...

This PR has been rebased on the current master, updated to the new version of `@theia/monaco-editor-core`, and re-tested on macOS and Windows. It is ready for review again.