not working on eclipse 2021-12 (4.22.0)?

[RogerParkinson]

I've installed on Eclipse
Version: 2021-12 (4.22.0)
Build id: 20211202-1639

I can't see any evidence it is working. When I format my Java code (ctrl+shift+f) it picks up the usual Eclipse Code Style Formatter settings and seems to take no notice of the contents of the .editorconfig file in my path.

My editorconfig file is in
/home/roger/meaningful/workspace/datasync-service
My eclipse project root is
/home/roger/meaningful/workspace/datasync-service
and my java file is
/home/roger/meaningful/workspace/datasync-service/src/test/java/io/meaningfultechnology/datasync/control/splitpub/impl/LockControllerImplTest.java

So I believe I have everything in the right place. Eclipse tells me the plugin is installed
What step did I miss?