diff --git a/core/src/main/java/org/springframework/security/intercept/web/FilterInvocationDefinitionSourceMapping.java b/core/src/main/java/org/springframework/security/intercept/web/FilterInvocationDefinitionSourceMapping.java
index 1751dfd0ac..dfa7613fe1 100644
--- a/core/src/main/java/org/springframework/security/intercept/web/FilterInvocationDefinitionSourceMapping.java
+++ b/core/src/main/java/org/springframework/security/intercept/web/FilterInvocationDefinitionSourceMapping.java
@@ -29,7 +29,7 @@ import org.springframework.security.ConfigAttribute;
  * @version $Id$
  * @since 1.1
  */
-public class FilterInvocationDefinitionSourceMapping {
+class FilterInvocationDefinitionSourceMapping {
 
     private String url;
 
diff --git a/core/src/main/java/org/springframework/security/intercept/web/PathBasedFilterInvocationDefinitionMap.java b/core/src/main/java/org/springframework/security/intercept/web/PathBasedFilterInvocationDefinitionMap.java
index 874ffc7f42..f9bd6fd6f4 100644
--- a/core/src/main/java/org/springframework/security/intercept/web/PathBasedFilterInvocationDefinitionMap.java
+++ b/core/src/main/java/org/springframework/security/intercept/web/PathBasedFilterInvocationDefinitionMap.java
@@ -54,6 +54,9 @@ public class PathBasedFilterInvocationDefinitionMap extends DefaultFilterInvocat
     public void addSecureUrl(String antPath, String method, ConfigAttributeDefinition attr) {
         // SEC-501: If using lower case comparison, we should convert the paths to lower case
         // as any upper case characters included by mistake will prevent the URL from ever being matched.
+        // This shouldn't be needed anymore. The property editor complains if there is upper case text in the URL
+        // and the namespace implementation does the conversion itself, so it is safe to use the parent class
+        // directly. 
         if (getUrlMatcher().requiresLowerCaseUrl()) {
             antPath = antPath.toLowerCase();
         }