Fix: motd showing incorrect version

src/main/java/io/ib67/sfcraft/mixin/server/MinecraftServerMixin.java

@@ -4,10 +4,7 @@ import io.ib67.sfcraft.util.MixinHelper;
 import io.ib67.sfcraft.util.SFConsts;
 import net.minecraft.server.MinecraftServer;
 import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.*;
-import org.spongepowered.asm.mixin.injection.Constant;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.ModifyConstant;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
 @Mixin(MinecraftServer.class)

src/main/java/io/ib67/sfcraft/mixin/server/ServerHandshakeNetworkHandlerMixin.java

@@ -6,6 +6,7 @@ import net.minecraft.network.ClientConnection;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.ServerMetadata;
 import net.minecraft.server.network.ServerHandshakeNetworkHandler;
+import org.spongepowered.asm.mixin.Debug;
 import org.spongepowered.asm.mixin.Final;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
@@ -13,6 +14,7 @@ import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Redirect;
 
 @Mixin(ServerHandshakeNetworkHandler.class)
+@Debug(export = true)
 public abstract class ServerHandshakeNetworkHandlerMixin {
     @Shadow
     @Final
@@ -20,6 +22,11 @@ public abstract class ServerHandshakeNetworkHandlerMixin {
 
     @Redirect(method = "onHandshake", at = @At(value = "INVOKE", target = "Lnet/minecraft/server/MinecraftServer;getServerMetadata()Lnet/minecraft/server/ServerMetadata;"))
     public ServerMetadata getMetadata(MinecraftServer instance) {
-        return SFCallbacks.MOTD.invoker().onMotd(instance,connection);
+        var result = SFCallbacks.MOTD.invoker().onMotd(instance,connection);
+        if(result == null) {
+            return instance.getServerMetadata();
+        }else{
+            return result;
+        }
     }
 }

src/main/java/io/ib67/sfcraft/module/MotdModule.java

@@ -3,19 +3,14 @@ package io.ib67.sfcraft.module;
 import com.google.inject.Inject;
 import com.google.inject.Provides;
 import com.google.inject.Singleton;
-import io.ib67.sfcraft.callback.SFCallbacks;
 import io.ib67.sfcraft.inject.MinecraftServerSupplier;
 import io.ib67.sfcraft.util.Helper;
 import io.ib67.sfcraft.ServerModule;
 import io.ib67.sfcraft.config.ConfigResources;
 import io.ib67.sfcraft.inject.ConfigResource;
 import io.ib67.sfcraft.inject.ConfigRoot;
-import net.minecraft.network.ClientConnection;
-import net.minecraft.server.MinecraftServer;
-import net.minecraft.server.ServerMetadata;
 
 import java.nio.file.Path;
-import java.util.Optional;
 
 public class MotdModule extends ServerModule {
     @Inject
@@ -29,11 +24,6 @@ public class MotdModule extends ServerModule {
     @Override
     public void onInitialize() {
         motd = getMotd(configRoot);
-       SFCallbacks.MOTD.register(this::onMotd);
-    }
-
-    private ServerMetadata onMotd(MinecraftServer minecraftServer, ClientConnection clientConnection) {
-        return minecraftServer.getServerMetadata(); // it works, but who knows why?
     }
 
     @Override