Added refreshBrain reflection (fixes #905)

src/main/java/net/coreprotect/bukkit/BukkitAdapter.java

@@ -1,5 +1,6 @@
 package net.coreprotect.bukkit;
 
+import java.lang.reflect.Method;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
@@ -25,6 +26,7 @@ import org.bukkit.entity.EntityType;
 import org.bukkit.entity.ItemFrame;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Painting;
+import org.bukkit.entity.Villager;
 import org.bukkit.event.Event;
 import org.bukkit.event.block.BlockExplodeEvent;
 import org.bukkit.event.block.SignChangeEvent;
@@ -126,6 +128,17 @@ public class BukkitAdapter implements BukkitInterface {
     public void setMerchantRecipeMeta(MerchantRecipe recipe, List<?> recipeData) {
     }
 
+    @Override
+    public void refreshVillagerBrain(Villager villager) {
+        try {
+            Object handle = villager.getClass().getMethod("getHandle").invoke(villager);
+            Object level = villager.getWorld().getClass().getMethod("getHandle").invoke(villager.getWorld());
+            invokeSingleArgumentMethod(handle, "refreshBrain", level);
+        }
+        catch (Exception e) {
+        }
+    }
+
     @Override
     public void getWolfVariant(org.bukkit.entity.Wolf wolf, List<Object> info) {
         // Base implementation does nothing - Wolf variants only exist in 1.21+
@@ -195,6 +208,24 @@ public class BukkitAdapter implements BukkitInterface {
         return itemStack;
     }
 
+    private static void invokeSingleArgumentMethod(Object target, String methodName, Object argument) {
+        if (target == null || argument == null) {
+            return;
+        }
+
+        for (Method method : target.getClass().getMethods()) {
+            Class<?>[] parameterTypes = method.getParameterTypes();
+            if (method.getName().equals(methodName) && parameterTypes.length == 1 && parameterTypes[0].isInstance(argument)) {
+                try {
+                    method.invoke(target, argument);
+                }
+                catch (Exception e) {
+                }
+                return;
+            }
+        }
+    }
+
     // -------------------- Block methods --------------------
 
     @Override

src/main/java/net/coreprotect/bukkit/BukkitInterface.java

@@ -16,6 +16,7 @@ import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Painting;
+import org.bukkit.entity.Villager;
 import org.bukkit.event.Event;
 import org.bukkit.event.block.BlockExplodeEvent;
 import org.bukkit.event.block.SignChangeEvent;
@@ -300,6 +301,8 @@ public interface BukkitInterface {
 
     void setMerchantRecipeMeta(MerchantRecipe recipe, List<?> recipeData);
 
+    void refreshVillagerBrain(Villager villager);
+
     /**
      * Gets the wolf variant and adds it to the info list.
      * Only implemented in Minecraft 1.21+.

src/main/java/net/coreprotect/utility/entity/EntityUtil.java

@@ -623,6 +623,9 @@ public class EntityUtil {
                     }
                     count++;
                 }
+                if (entity instanceof Villager) {
+                    BukkitAdapter.ADAPTER.refreshVillagerBrain((Villager) entity);
+                }
             }
             catch (Exception e) {
                 e.printStackTrace();