Fix more compile issues

patches/server/0545-Add-HiddenPotionEffect-API.patch

@@ -0,0 +1,29 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Tamion <70228790+notTamion@users.noreply.github.com>
+Date: Sun, 5 Nov 2023 09:51:28 +0100
+Subject: [PATCH] Add HiddenPotionEffect API
+
+== AT ==
+public net.minecraft.world.effect.MobEffectInstance hiddenEffect
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionUtil.java b/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionUtil.java
+index 068a9b2d7b6895f14077d9647a8c9fed3e3d3ade..14c58cf8d255c51473fd3d0092faeaf5a3c1ae0c 100644
+--- a/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionUtil.java
++++ b/src/main/java/org/bukkit/craftbukkit/potion/CraftPotionUtil.java
+@@ -10,6 +10,7 @@ public class CraftPotionUtil {
+ 
+     public static MobEffectInstance fromBukkit(PotionEffect effect) {
+         Holder<MobEffect> type = CraftPotionEffectType.bukkitToMinecraftHolder(effect.getType());
++        // Paper - Note: do not copy over the hidden effect, as this method is only used for applying to entities which we do not want to convert over.
+         return new MobEffectInstance(type, effect.getDuration(), effect.getAmplifier(), effect.isAmbient(), effect.hasParticles(), effect.hasIcon()); // Paper
+     }
+ 
+@@ -19,7 +20,7 @@ public class CraftPotionUtil {
+         int duration = effect.getDuration();
+         boolean ambient = effect.isAmbient();
+         boolean particles = effect.isVisible();
+-        return new PotionEffect(type, duration, amp, ambient, particles, effect.showIcon()); // Paper
++        return new PotionEffect(type, duration, amp, ambient, particles, effect.showIcon(), effect.hiddenEffect == null ? null : toBukkit(effect.hiddenEffect)); // Paper
+     }
+ 
+     public static boolean equals(Holder<MobEffect> mobEffect, PotionEffectType type) {