This week's giveaway is in the Cloud/Virtualization forum. We're giving away four copies of Secure Financial Transactions with Ansible, Terraform, and OpenSCAP and have Lucian Maly on-line! See this thread for details.
Needless to say there is a way to create a Map with a Stream. But you need to read the file into a List<Player> first. I shall leave it as an exercise for the reader and might let you out of your misery in due course.