Polishing

spring-beans/src/main/java/org/springframework/beans/factory/groovy/GroovyBeanDefinitionReader.java

 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -489,8 +489,8 @@ public class GroovyBeanDefinitionReader extends AbstractBeanDefinitionReader imp
 						resolveConstructorArguments(args, 2, hasClosureArgument ? args.length - 1 : args.length);
 				this.currentBeanDefinition = new GroovyBeanDefinitionWrapper(beanName, (Class<?>) args[1], constructorArgs);
 				Map<?, ?> namedArgs = (Map<?, ?>) args[0];
-				for (Object o : namedArgs.keySet()) {
-					String propName = (String) o;
+				for (Object key : namedArgs.keySet()) {
+					String propName = (String) key;
 					setProperty(propName, namedArgs.get(propName));
 				}
 			}

spring-core/src/main/java/org/springframework/util/StringUtils.java

 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -1342,8 +1342,8 @@ public abstract class StringUtils {
 		}
 
 		StringJoiner sj = new StringJoiner(delim);
-		for (Object o : arr) {
-			sj.add(String.valueOf(o));
+		for (Object elem : arr) {
+			sj.add(String.valueOf(elem));
 		}
 		return sj.toString();
 	}

spring-webflux/src/main/java/org/springframework/web/reactive/resource/ResourceUrlProvider.java

@@ -57,12 +57,12 @@ public class ResourceUrlProvider implements ApplicationListener<ContextRefreshed
 
 	private static final Log logger = LogFactory.getLog(ResourceUrlProvider.class);
 
-
 	private final Map<PathPattern, ResourceWebHandler> handlerMap = new LinkedHashMap<>();
 
 	@Nullable
 	private ApplicationContext applicationContext;
 
+
 	@Override
 	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
 		this.applicationContext = applicationContext;

spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceUrlProvider.java

@@ -67,6 +67,7 @@ public class ResourceUrlProvider implements ApplicationListener<ContextRefreshed
 
 	private boolean autodetect = true;
 
+
 	@Override
 	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
 		this.applicationContext = applicationContext;
@@ -134,6 +135,7 @@ public class ResourceUrlProvider implements ApplicationListener<ContextRefreshed
 		return this.autodetect;
 	}
 
+
 	@Override
 	public void onApplicationEvent(ContextRefreshedEvent event) {
 		if (event.getApplicationContext() == this.applicationContext && isAutodetect()) {
@@ -145,7 +147,6 @@ public class ResourceUrlProvider implements ApplicationListener<ContextRefreshed
 		}
 	}
 
-
 	protected void detectResourceHandlers(ApplicationContext appContext) {
 		Map<String, SimpleUrlHandlerMapping> beans = appContext.getBeansOfType(SimpleUrlHandlerMapping.class);
 		List<SimpleUrlHandlerMapping> mappings = new ArrayList<>(beans.values());
@@ -225,7 +226,6 @@ public class ResourceUrlProvider implements ApplicationListener<ContextRefreshed
 	 */
 	@Nullable
 	public final String getForLookupPath(String lookupPath) {
-
 		// Clean duplicate slashes or pathWithinPattern won't match lookupPath
 		String previous;
 		do {