Scalene is a lightweight reactive HTTP server framework written in Scala. It is implemented directly on Java NIO and handles all TCP connection management, message parsing/encoding, and request routing.
https://github.com/DanSimon/scalene
All source for this test is in Benchmark.scala
Dependencies are defined in build.sbt.
http://localhost:8080/plaintext
http://localhost:8080/json
http://localhost:8080/db
http://localhost:8080/queries/<queries>