chore(pact-jvm-server): Converted ListServers to kotlin

pact-jvm-server/src/main/kotlin/au/com/dius/pact/server/ListServers.kt

@@ -0,0 +1,16 @@
+package au.com.dius.pact.server
+
+import au.com.dius.pact.core.model.OptionalBody
+import au.com.dius.pact.core.model.Response
+
+object ListServers {
+  private val portRegex = Regex("\\d+")
+
+  @JvmStatic
+  fun apply(oldState: ServerState): Result {
+    val ports = oldState.state.keys.filter { it.matches(portRegex) }.joinToString(", ")
+    val paths = oldState.state.keys.filter { !it.matches(portRegex) }.joinToString(", ") { "\"$it\"" }
+    val body = OptionalBody.body(("{\"ports\": [$ports], \"paths\": [$paths]}").toByteArray())
+    return Result(Response(200, mapOf("Content-Type" to listOf("application/json")).toMutableMap(), body), oldState)
+  }
+}

pact-jvm-server/src/main/scala/au/com/dius/pact/server/RequestRouter.scala

@@ -34,7 +34,7 @@ object RequestRouter extends StrictLogging {
       case "create" => Create.apply(request, oldState, config)
       case "complete" => Complete.apply(request, oldState)
       case "publish" => Publish(request, oldState, config)
-      case "" => ListServers(oldState)
+      case "" => ListServers.apply(oldState)
       case _ => new Result(pactDispatch(request, oldState), oldState)
     }
   }

pact-jvm-server/src/main/scala/au/com/dius/pact/server/Server.scala

@@ -1,21 +1,8 @@
 package au.com.dius.pact.server
 
-import au.com.dius.pact.core.model.{OptionalBody, Response}
 import ch.qos.logback.classic.Level
 import org.slf4j.{Logger, LoggerFactory}
 
-import scala.collection.JavaConverters._
-
-object ListServers {
-
-  def apply(oldState: ServerState): Result = {
-    val ports = oldState.getState.keySet.asScala.filter(p => p.matches("\\d+")).mkString(", ")
-    val paths = oldState.getState.keySet.asScala.filter(p => !p.matches("\\d+")).map("\"" + _ + "\"").mkString(", ")
-    val body = OptionalBody.body(("{\"ports\": [" + ports + "], \"paths\": [" + paths + "]}").getBytes)
-    new Result(new Response(200, Map("Content-Type" -> List("application/json").asJava).asJava, body), oldState)
-  }
-}
-
 object Server extends App {
 
   val parser = new scopt.OptionParser[Config]("pact-jvm-server") {

pact-jvm-server/src/test/groovy/au/com/dius/pact/server/ListServersSpec.groovy

@@ -58,6 +58,6 @@ class ListServersSpec extends Specification {
 
     then:
     result.response.status == 200
-    result.response.body.valueAsString() == '{"ports": [8765, 1234], "paths": ["/other-path", "/path"]}'
+    result.response.body.valueAsString() == '{"ports": [1234, 8765], "paths": ["/path", "/other-path"]}'
   }
 }