minas please help no serialization

Projekte/mdga/client/src/main/java/pp/mdga/client/server/MdgaServer.java

@@ -2,6 +2,7 @@
 
 import com.jme3.network.*;
 import com.jme3.network.serializing.Serializer;
+import com.jme3.network.serializing.serializers.EnumSerializer;
 import pp.mdga.game.*;
 import pp.mdga.message.client.*;
 import pp.mdga.message.server.*;
@@ -12,7 +13,6 @@
 import java.io.IOException;
 import java.lang.System.Logger;
 import java.lang.System.Logger.Level;
-import java.net.InetAddress;
 import java.util.Map;
 import java.util.UUID;
 import java.util.concurrent.BlockingQueue;
@@ -143,6 +143,8 @@ private void initializeSerializables() {
         Serializer.registerClass(StartNode.class);
         Serializer.registerClass(PlayerData.class);
         Serializer.registerClass(HomeNode.class);
+        Serializer.registerClass(PieceState.class, new EnumSerializer());
+        Serializer.registerClass(ShieldState.class, new EnumSerializer());
     }
 
     private void registerListeners() {

Projekte/mdga/model/src/main/java/pp/mdga/game/PieceState.java

@@ -19,5 +19,9 @@ public enum PieceState {
     /**
      * The piece is finished.
      */
-    HOMEFINISHED
+    HOMEFINISHED;
+
+    public PieceState next() {
+        return values()[(ordinal() + 1) % values().length];
+    }
 }

Projekte/mdga/model/src/main/java/pp/mdga/game/ShieldState.java

@@ -15,5 +15,10 @@ public enum ShieldState {
     /**
      * The shield is suppressed, when the piece is on a start node.
      */
-    SUPPRESSED
+    SUPPRESSED;
+
+
+    public ShieldState next() {
+        return values()[(ordinal() + 1) % values().length];
+    }
 }