I experience the same issue with a non elevated user (Docker installed as Admin and privileged mode/user added to Group), only occurs when I use the Maeven daemon and try to run multithreaded when I run sequential this does not occur at all for me. So it seems when a process already uses the access currently it is blocked from additional access, so accessing it multiple times at the same time is not possible. I tried out almost every Docker setting on the Docker for Windows but it is not working so I use normal mvn for my Dockers and build only the modules parallel.