From 07d1c7c5eb32572ef848d23a7b85a1b6253a42b6 Mon Sep 17 00:00:00 2001
From: Shazin Sadakath <shazin.sadakath@gmail.com>
Date: Mon, 31 Oct 2016 23:59:25 +0530
Subject: [PATCH] AclAuthorizationStrategyImpl uses name

Fixes gh-4085
---
 .../acls/domain/AclAuthorizationStrategyImpl.java     | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/acl/src/main/java/org/springframework/security/acls/domain/AclAuthorizationStrategyImpl.java b/acl/src/main/java/org/springframework/security/acls/domain/AclAuthorizationStrategyImpl.java
index d8a96ba2bc..1424c156d5 100644
--- a/acl/src/main/java/org/springframework/security/acls/domain/AclAuthorizationStrategyImpl.java
+++ b/acl/src/main/java/org/springframework/security/acls/domain/AclAuthorizationStrategyImpl.java
@@ -16,18 +16,20 @@
 
 package org.springframework.security.acls.domain;
 
-import java.util.Arrays;
-import java.util.List;
-
 import org.springframework.security.access.AccessDeniedException;
 import org.springframework.security.acls.model.Acl;
 import org.springframework.security.acls.model.Sid;
 import org.springframework.security.acls.model.SidRetrievalStrategy;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.authority.AuthorityUtils;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.util.Assert;
 
+import java.util.Arrays;
+import java.util.List;
+import java.util.Set;
+
 /**
  * Default implementation of {@link AclAuthorizationStrategy}.
  * <p>
@@ -118,7 +120,8 @@ public class AclAuthorizationStrategyImpl implements AclAuthorizationStrategy {
 		}
 
 		// Iterate this principal's authorities to determine right
-		if (authentication.getAuthorities().contains(requiredAuthority)) {
+		Set<String> authorities = AuthorityUtils.authorityListToSet(authentication.getAuthorities());
+		if (authorities.contains(requiredAuthority.getAuthority())) {
 			return;
 		}