From 239fd05d37dc12ff4ddc320d817aa7b668e90ac5 Mon Sep 17 00:00:00 2001
From: Ben Alex <ben.alex@springsource.com>
Date: Mon, 3 Dec 2007 07:33:18 +0000
Subject: [PATCH] Mark the unused Servlet Container callback methods as final
 to ensure subclasses do not rely upon them.

---
 .../org/springframework/security/ui/SpringSecurityFilter.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/src/main/java/org/springframework/security/ui/SpringSecurityFilter.java b/core/src/main/java/org/springframework/security/ui/SpringSecurityFilter.java
index a8adad08ff..3c49fdd12b 100644
--- a/core/src/main/java/org/springframework/security/ui/SpringSecurityFilter.java
+++ b/core/src/main/java/org/springframework/security/ui/SpringSecurityFilter.java
@@ -28,13 +28,13 @@ public abstract class SpringSecurityFilter implements Filter, Ordered {
      * @param filterConfig ignored
      * @throws ServletException ignored
      */
-    public void init(FilterConfig filterConfig) throws ServletException {
+    public final void init(FilterConfig filterConfig) throws ServletException {
     }
 
     /**
      * Does nothing. We use IoC container lifecycle services instead.
      */
-    public void destroy() {
+    public final void destroy() {
     }
 
     public final void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {