Embedded Jetty + Scalatra with Webjars loading (loads META-INF/resources data from the classpath jars). Works without any configuration in Jetty, jetty-maven-plugin, but not so easily in embedded form. Make sure to create websresources/index.html in your src/main/resources/ directory. Examples provided in Scalatra documentation are strange - set…

initialise.scala

  def initialiseApp[T<:LifeCycle](port: Int) = {

    val server = new Server(port)
    val context = new WebAppContext()
    context.setContextPath("/")
    context.setResourceBase(new File(getClass.getResource("/webresources/index.html").getFile).getCanonicalFile.getParentFile.getCanonicalPath)
    context.addEventListener(new ScalatraListener)
    context.addServlet(classOf[DefaultServlet], "/")
    context.setInitParameter(ScalatraListener.LifeCycleKey, classOf[ConfiguredBootstrap].getCanonicalName)
    context.setAttribute(WebInfConfiguration.WEBINF_JAR_PATTERN, ".*\\.jar$")
    context.setAttribute(WebInfConfiguration.CONTAINER_JAR_PATTERN, ".*\\.jar$")
    context.setConfigurations(Array(new WebInfConfiguration, new MetaInfConfiguration))
    context.setHandler(new ResourceHandler)
    server.setHandler(context)
    server
  }