From 5b4cf49b42198e46038ba4f9a2e1c2ef2448ec76 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 28 Nov 2014 13:20:22 -0600
Subject: [PATCH] Only refresh abilities if needed


diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 4559d97..7358519 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1176,12 +1176,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
 
     @Override
     public void setFlying(boolean value) {
+        boolean needsUpdate = getHandle().abilities.canFly != value; // PaperSpigot - Only refresh abilities if needed
         if (!getAllowFlight() && value) {
             throw new IllegalArgumentException("Cannot make player fly if getAllowFlight() is false");
         }
 
         getHandle().abilities.isFlying = value;
-        getHandle().updateAbilities();
+        if (needsUpdate) getHandle().updateAbilities(); // PaperSpigot - Only refresh abilities if needed
     }
 
     @Override
-- 
1.9.1