WW-4465 Ignores statusCode parameter when building redirect url

core/src/main/java/org/apache/struts2/dispatcher/ServletActionRedirectResult.java

@@ -210,7 +210,18 @@ public class ServletActionRedirectResult extends ServletRedirectResult implement
     }
 
     protected List<String> getProhibitedResultParams() {
-        return Arrays.asList(DEFAULT_PARAM, "namespace", "method", "encode", "parse", "location", "prependServletContext", "suppressEmptyParameters", "anchor");
+        return Arrays.asList(
+                DEFAULT_PARAM,
+                "namespace",
+                "method",
+                "encode",
+                "parse",
+                "location",
+                "prependServletContext",
+                "suppressEmptyParameters",
+                "anchor",
+                "statusCode"
+        );
     }
 
 }

core/src/test/java/org/apache/struts2/dispatcher/ServletActionRedirectResultTest.java

@@ -58,7 +58,8 @@ public class ServletActionRedirectResultTest extends StrutsInternalTestCase {
             .addParam("location", "someLocation")
             .addParam("prependServletContext", "true")
             .addParam("method", "someMethod")
-            .addParam("param1", "${#value1}")
+			.addParam("statusCode", "333")
+			.addParam("param1", "${#value1}")
             .addParam("param2", "${#value2}")
             .addParam("param3", "${#value3}")
             .addParam("anchor", "${#fragment}")