diff --git a/web/src/main/java/org/springframework/security/web/access/ExceptionTranslationFilter.java b/web/src/main/java/org/springframework/security/web/access/ExceptionTranslationFilter.java
index 051893c640..69d29f7712 100644
--- a/web/src/main/java/org/springframework/security/web/access/ExceptionTranslationFilter.java
+++ b/web/src/main/java/org/springframework/security/web/access/ExceptionTranslationFilter.java
@@ -94,7 +94,7 @@ public class ExceptionTranslationFilter extends GenericFilterBean implements Mes
 
 	private ThrowableAnalyzer throwableAnalyzer = new DefaultThrowableAnalyzer();
 
-	private RequestCache requestCache = new HttpSessionRequestCache();
+	private final RequestCache requestCache;
 
 	protected MessageSourceAccessor messages = SpringSecurityMessageSource.getAccessor();