import akka._ AkkaBuild.defaultSettings AkkaBuild.dontPublishSettings Formatting.formatSettings Dependencies.httpTests // don't ignore Suites which is the default for the junit-interface testOptions += Tests.Argument(TestFrameworks.JUnit, "--ignore-runners=") scalacOptions in Compile += "-language:_" mainClass in run in Test := Some("akka.http.javadsl.SimpleServerApp")