After asking Alexa: "Alexa, ask greeter to say hello" Alexa replies "There was a problem communicating with the requested application" the app shows the error "Unexpected communication Issue" There isn't anything in the logs that look unusual. Anyone else experience this issue? Thanks in advance!
This is often what I see when Amazon gets a HTTP 500 response from your servlet. You might try it with EchoSim (
https://github.com/jjaquinta/EchoSim) You can, at least, more precisely call your application and see both ends of what's going on.