From 905f168e257c0b2da72e949a5b5302fcd2302228 Mon Sep 17 00:00:00 2001
From: zml <zach@zachsthings.com>
Date: Tue, 2 Sep 2014 17:15:57 -0700
Subject: [PATCH] Add a better error message for null permissions being checked

---
 .../tehkode/permissions/bukkit/regexperms/PermissiblePEX.java   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main/java/ru/tehkode/permissions/bukkit/regexperms/PermissiblePEX.java b/src/main/java/ru/tehkode/permissions/bukkit/regexperms/PermissiblePEX.java
index 92b631e4b..d4e1955da 100644
--- a/src/main/java/ru/tehkode/permissions/bukkit/regexperms/PermissiblePEX.java
+++ b/src/main/java/ru/tehkode/permissions/bukkit/regexperms/PermissiblePEX.java
@@ -18,6 +18,7 @@
  */
 package ru.tehkode.permissions.bukkit.regexperms;
 
+import org.apache.commons.lang.Validate;
 import org.bukkit.entity.Player;
 import org.bukkit.permissions.Permissible;
 import org.bukkit.permissions.PermissibleBase;
@@ -223,6 +224,7 @@ private PermissionCheckResult checkSingle(String expression, String permission,
 
 	protected PermissionCheckResult permissionValue(String permission) {
 		try {
+			Validate.notNull(permission, "Permissions being checked must not be null!");
 			permission = permission.toLowerCase();
 			PermissionCheckResult res = cache.get(permission);
 			if (res != null) {