From 99a0baadfad6d947dd3edfb33528edba02d0d9a5 Mon Sep 17 00:00:00 2001
From: Chris Burrell <chris.burrell@landbay.co.uk>
Date: Fri, 1 Dec 2017 12:01:44 +0000
Subject: [PATCH] Add HashMap to Jackson whitelist

Issue: gh-4889
---
 .../security/jackson2/SecurityJackson2Modules.java               | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/src/main/java/org/springframework/security/jackson2/SecurityJackson2Modules.java b/core/src/main/java/org/springframework/security/jackson2/SecurityJackson2Modules.java
index 21c1c7b2ed..2d935b4101 100644
--- a/core/src/main/java/org/springframework/security/jackson2/SecurityJackson2Modules.java
+++ b/core/src/main/java/org/springframework/security/jackson2/SecurityJackson2Modules.java
@@ -145,6 +145,7 @@ public final class SecurityJackson2Modules {
 			"java.util.Collections$EmptyMap",
 			"java.util.Date",
 			"java.util.TreeMap",
+			"java.util.HashMap",
 			"org.springframework.security.core.context.SecurityContextImpl"
 		)));