Fix CheckStyle violations

spring-web/src/main/java/org/springframework/web/util/ServletRequestPathUtils.java

@@ -184,7 +184,7 @@ public abstract class ServletRequestPathUtils {
 	 * supports a servletPath as an additional prefix to be omitted from
 	 * {@link #pathWithinApplication()}.
 	 */
-	private static class ServletRequestPath implements RequestPath {
+	private static final class ServletRequestPath implements RequestPath {
 
 		private final RequestPath requestPath;
 

spring-web/src/testFixtures/java/org/springframework/web/testfixture/servlet/MockHttpServletMapping.java

@@ -77,4 +77,4 @@ public class MockHttpServletMapping implements HttpServletMapping {
 				"mappingMatch=" + mappingMatch + "]";
 	}
 
-}
\ No newline at end of file
+}