Improved json response handling, add own equals method for session

src/main/scala/de/tobias/playpad/server/account/Session.scala

@@ -26,6 +26,22 @@ import scala.util.Random
 
 	def getId: Int = id
 	def getAccount: Account = account
+
+
+	def canEqual(other: Any): Boolean = other.isInstanceOf[Session]
+
+	override def equals(other: Any): Boolean = other match {
+		case that: Session =>
+			(that canEqual this) &&
+				id == that.id &&
+				key == that.key
+		case _ => false
+	}
+
+	override def hashCode(): Int = {
+		val state = Seq(id, key)
+		state.map(_.hashCode()).foldLeft(0)((a, b) => 31 * a + b)
+	}
 }
 
 object Session {

src/main/scala/de/tobias/playpad/server/server/account/SessionGet.scala

@@ -28,7 +28,7 @@ class SessionGet(accountDao: Dao[Account, Int]) extends Route {
 					jsonObj.addProperty("createDate", session.createDate.getTime)
 					array.add(jsonObj)
 				})
-				return array.toString
+				return array
 			}
 		}
 

src/main/scala/de/tobias/playpad/server/transformer/JsonTransformer.scala

 package de.tobias.playpad.server.transformer
 
-import com.google.gson.Gson
+import com.google.gson.{Gson, JsonObject}
 import spark.ResponseTransformer
 
 /**
@@ -11,6 +11,10 @@ class JsonTransformer extends ResponseTransformer {
 	val gson = new Gson()
 
 	override def render(o: scala.Any): String = {
+		if (!o.isInstanceOf[JsonObject]) {
 			gson.toJson(o)
+		} else {
+			o.toString
+		}
 	}
 }