From 845e8fbc2e3d37c44a0b36628d2ab520d22baa5f Mon Sep 17 00:00:00 2001
From: Bukkit/Spigot <noreply+git-bukkit@papermc.io>
Date: Wed, 9 Feb 2011 19:08:45 +0000
Subject: [PATCH] PlayerChatEvent.setFormat validation

By: Dinnerbone <dinnerbone@dinnerbone.com>
---
 .../java/org/bukkit/event/player/PlayerChatEvent.java    | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/paper-api/src/main/java/org/bukkit/event/player/PlayerChatEvent.java b/paper-api/src/main/java/org/bukkit/event/player/PlayerChatEvent.java
index 047b270fa..28c894f2d 100644
--- a/paper-api/src/main/java/org/bukkit/event/player/PlayerChatEvent.java
+++ b/paper-api/src/main/java/org/bukkit/event/player/PlayerChatEvent.java
@@ -1,6 +1,7 @@
 
 package org.bukkit.event.player;
 
+import java.util.IllegalFormatException;
 import org.bukkit.entity.Player;
 import org.bukkit.event.Cancellable;
 
@@ -80,6 +81,14 @@ public class PlayerChatEvent extends PlayerEvent implements Cancellable {
      * @param format String.Format compatible format string
      */
     public void setFormat(final String format) {
+        // Oh for a better way to do this!
+        try {
+            String.format(format, player, message);
+        } catch (RuntimeException ex) {
+            ex.fillInStackTrace();
+            throw ex;
+        }
+
         this.format = format;
     }
 }