From 3d517d9d80042ebbf694366f59e2ad2696c28465 Mon Sep 17 00:00:00 2001
From: CraftBukkit/Spigot <noreply+git-craftbukkit@papermc.io>
Date: Sun, 19 Mar 2017 18:31:40 -0400
Subject: [PATCH] Properly validate player experience bar progress

By: Parker Hawke <hawkeboyz2@hotmail.com>
---
 .../src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 5ba18e688..58ca7ed88 100644
--- a/paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -821,6 +821,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
 
     @Override
     public void setExp(float exp) {
+        Preconditions.checkArgument(exp >= 0.0 && exp <= 1.0, "Experience progress must be between 0.0 and 1.0 (%s)", exp);
         getHandle().exp = exp;
         getHandle().lastSentExp = -1;
     }