SEC-1657: Corresponding namespace updates to use SecurityFilterChain list in place of filterChainMap.

web/src/main/java/org/springframework/security/web/SecurityFilterChain.java

@@ -32,7 +32,7 @@ public final class SecurityFilterChain {
 
     public SecurityFilterChain(RequestMatcher requestMatcher, List<Filter> filters) {
         this.requestMatcher = requestMatcher;
-        this.filters = filters;
+        this.filters = new ArrayList<Filter>(filters);
     }
 
     public RequestMatcher getRequestMatcher() {

web/src/main/java/org/springframework/security/web/util/AnyRequestMatcher.java

@@ -14,4 +14,13 @@ public final class AnyRequestMatcher implements RequestMatcher {
         return true;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        return obj instanceof AnyRequestMatcher;
+    }
+
+    @Override
+    public int hashCode() {
+        return 1;
+    }
 }