From a25c96eda7e33c9d331d2e16c6be1481ac3d5b02 Mon Sep 17 00:00:00 2001
From: Thinkofdeath <thinkofdeath@spigotmc.org>
Date: Mon, 13 Apr 2015 11:51:04 +0100
Subject: [PATCH] SPIGOT-742: Throw an exception instead of passing null when
 the sender cannot be converted

---
 .../org/bukkit/craftbukkit/command/VanillaCommandWrapper.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java b/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
index e709825563..96a0ae1fe7 100644
--- a/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
+++ b/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
@@ -161,7 +161,7 @@ public final class VanillaCommandWrapper extends VanillaCommand {
         if (sender instanceof ProxiedCommandSender) {
             return ((ProxiedNativeCommandSender) sender).getHandle();
         }
-        return null;
+        throw new IllegalArgumentException("Cannot make " + sender + " a vanilla command listener");
     }
 
     private int getPlayerListSize(String as[]) {