diff --git a/mappings/net/minecraft/server/MinecraftServer.mapping b/mappings/net/minecraft/server/MinecraftServer.mapping
index c88d8663..896b7397 100644
--- a/mappings/net/minecraft/server/MinecraftServer.mapping
+++ b/mappings/net/minecraft/server/MinecraftServer.mapping
@@ -1,22 +1,45 @@
 CLASS net/minecraft/server/MinecraftServer
+	CLASS class_643 ServerThread
+	CLASS class_644 LevelConverter
+		FIELD field_2858 time J
+	CLASS class_645 ConsoleInputThread
+	CLASS class_646 MagicalTimingHelperThread
 	FIELD field_2837 logger Ljava/util/logging/Logger;
 	FIELD field_2839 pendingConnectionManager Lnet/minecraft/class_9;
 	FIELD field_2840 serverProperties Lnet/minecraft/class_391;
+	FIELD field_2841 levels [Lnet/minecraft/class_73;
+	FIELD field_2842 serverPlayerConnectionManager Lnet/minecraft/class_166;
+	FIELD field_2843 stopped Z
+	FIELD field_2845 progressName Ljava/lang/String;
+	FIELD field_2846 progressPercentage I
 	FIELD field_2848 onlineMode Z
 	FIELD field_2849 spawnAnimals Z
 	FIELD field_2850 allowPvp Z
 	FIELD field_2851 allowFlight Z
 	FIELD field_2852 commandManager Lnet/minecraft/class_426;
+	FIELD field_2853 running Z
 	FIELD field_2855 pendingCommands Ljava/util/List;
 	METHOD main ([Ljava/lang/String;)V
 		ARG 0 args
+	METHOD method_2156 stopRunning ()V
+	METHOD method_2157 getLevel (I)Lnet/minecraft/class_73;
+		ARG 1 index
+	METHOD method_2159 prepareLevel (Lnet/minecraft/class_182;Ljava/lang/String;J)V
+		ARG 2 levelName
+		ARG 3 seed
 	METHOD method_2160 getFile (Ljava/lang/String;)Ljava/io/File;
+		ARG 1 file
+	METHOD method_2161 printProgress (Ljava/lang/String;I)V
+		ARG 1 name
+		ARG 2 percentage
 	METHOD method_2162 queueCommand (Ljava/lang/String;Lnet/minecraft/class_39;)V
 		ARG 1 commandString
 		ARG 2 source
 	METHOD method_2164 processQueuedCommands ()V
 	METHOD method_2166 start ()Z
 	METHOD method_2167 logWarning (Ljava/lang/String;)V
-	CLASS class_643 ServerThread
-	CLASS class_645 ConsoleInputThread
-	CLASS class_646 MagicalTimingHelperThread
+		ARG 1 message
+	METHOD method_2168 resetProgress ()V
+	METHOD method_2169 saveLevel ()V
+	METHOD method_2170 stopServer ()V
+	METHOD method_2171 skipNight ()V
diff --git a/mappings/net/minecraft/util/ProgressListener.mapping b/mappings/net/minecraft/util/ProgressListener.mapping
index 294e9e23..b32dd684 100644
--- a/mappings/net/minecraft/util/ProgressListener.mapping
+++ b/mappings/net/minecraft/util/ProgressListener.mapping
@@ -1,4 +1,5 @@
 CLASS net/minecraft/class_62 net/minecraft/util/ProgressListener
 	METHOD method_1794 progressStagePercentage (I)V
+		ARG 1 percentage
 	METHOD method_1795 notifyIgnoreGameRunning (Ljava/lang/String;)V
 		ARG 1 message