Minor fixes

core/src/main/scala/org/apache/spark/HttpServer.scala

@@ -46,7 +46,7 @@ private[spark] class HttpServer(resourceBase: File) extends Logging {
     if (server != null) {
       throw new ServerStateException("Server is already started")
     } else {
-      log.info("Starting HTTP Server")
+      logInfo("Starting HTTP Server")
       server = new Server()
       val connector = new SocketConnector
       connector.setMaxIdleTime(60*1000)

core/src/main/scala/org/apache/spark/Logging.scala

@@ -119,6 +119,6 @@ trait Logging {
 }
 
 object Logging {
-  @transient @volatile private var initialized = false
-  @transient val initLock = new Object()
+  @volatile private var initialized = false
+  val initLock = new Object()
 }
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