From f710136c43399f7bdfb8bbdd8e041d71178e965f Mon Sep 17 00:00:00 2001
From: Niklas Veit <niklas.veit@mni.thm.de>
Date: Wed, 31 Oct 2018 18:18:52 +0100
Subject: [PATCH] Fix possible null pointer dereference

---
 .../de/thm/arsnova/security/ApplicationPermissionEvaluator.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/de/thm/arsnova/security/ApplicationPermissionEvaluator.java b/src/main/java/de/thm/arsnova/security/ApplicationPermissionEvaluator.java
index 13ab5f6c9..beb8741d0 100644
--- a/src/main/java/de/thm/arsnova/security/ApplicationPermissionEvaluator.java
+++ b/src/main/java/de/thm/arsnova/security/ApplicationPermissionEvaluator.java
@@ -227,7 +227,7 @@ public class ApplicationPermissionEvaluator implements PermissionEvaluator {
 				}
 				room = roomRepository.findOne(targetMotd.getRoomId());
 
-				return room != null && !room.isClosed() || room.getOwnerId().equals(userId);
+				return room != null && (!room.isClosed() || room.getOwnerId().equals(userId));
 			default:
 				return false;
 		}
-- 
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