This week's book giveaway is in the NodeJS forum. We're giving away four copies of Serverless Applications with Node.js and have Slobodan Stojanovic & Aleksandar Simovic on-line! See this thread for details.
How urgent, and how important, is it to get the Java11 cert at all?
That's what I was thinking too. Most organizations won't be on version 11 for some time so I might as well focus on getting the OCP 8 Certification done and by the time I'm ready to do the java 11 cert there will be plenty of study material available.