I've been trying to set up a Google App Engine with IDEA (I'm an IDEA newbie, but I've got a decade of experience with Eclipse).
With signfiicant help from Jetbrains support, I’ve now got a test GAE project set up, and I can run it and see the output of a simple servlet in my web browser.
So I deleted this simple servlet and created a Kotlin file containing a class with the same name in the same package, also subclassing HttpServlet, with a doGet() method. I added the kotlin-runtime.jar to the WEB-INF/lib folder, which is where libraries are supposed to go in Google App Engine.
Unfortunately, when I try to run this now I get a ClassNotFoundException - it can’t find the Kotlin class with the servlet.
What am I doing wrong?