Github setup for Eclipse

I have Eclipse Oxygen that is working fine for other projects. I recently cloned the framework from GitHub and followed instructions. I got a clean build from maven CLI. But importing to Eclipse has problems. There are missing plugins seemingly related to M2Elipse. Some are automatically found with “Discover m2e connectors” dialog. I am trying to install these but there is a long-running process related to Initializing Language Server - for DesignreadInConstructor.html and many others waiting to run, like checkstyle.html.

Maybe it would be better to get the required plugins installed before importing the project. But the instructions don’t describe how to do this. There is some formatter plugin (and some other one) that Eclipse cannot find in the Marketplace.

Please include instructions in your root readme to properly get Eclipse setup with your project. Thanks.