Further polishing regarding JDK baseline upgrade

See gh-28440

spring-aop/src/main/java/org/springframework/aop/aspectj/autoproxy/AspectJAwareAdvisorAutoProxyCreator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2022 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.
@@ -100,8 +100,8 @@ public class AspectJAwareAdvisorAutoProxyCreator extends AbstractAdvisorAutoProx
 		// TODO: Consider optimization by caching the list of the aspect names
 		List<Advisor> candidateAdvisors = findCandidateAdvisors();
 		for (Advisor advisor : candidateAdvisors) {
-			if (advisor instanceof AspectJPointcutAdvisor &&
-					((AspectJPointcutAdvisor) advisor).getAspectName().equals(beanName)) {
+			if (advisor instanceof AspectJPointcutAdvisor pointcutAdvisor &&
+					pointcutAdvisor.getAspectName().equals(beanName)) {
 				return true;
 			}
 		}

spring-aop/src/main/java/org/springframework/aop/framework/ProxyFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 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.
@@ -436,12 +436,11 @@ public class ProxyFactoryBean extends ProxyCreatorSupport
 			// Materialize interceptor chain from bean names.
 			for (String name : this.interceptorNames) {
 				if (name.endsWith(GLOBAL_SUFFIX)) {
-					if (!(this.beanFactory instanceof ListableBeanFactory)) {
+					if (!(this.beanFactory instanceof ListableBeanFactory lbf)) {
 						throw new AopConfigException(
 								"Can only use global advisors or interceptors with a ListableBeanFactory");
 					}
-					addGlobalAdvisors((ListableBeanFactory) this.beanFactory,
-							name.substring(0, name.length() - GLOBAL_SUFFIX.length()));
+					addGlobalAdvisors(lbf, name.substring(0, name.length() - GLOBAL_SUFFIX.length()));
 				}
 
 				else {
@@ -475,16 +474,16 @@ public class ProxyFactoryBean extends ProxyCreatorSupport
 		Advisor[] advisors = getAdvisors();
 		List<Advisor> freshAdvisors = new ArrayList<>(advisors.length);
 		for (Advisor advisor : advisors) {
-			if (advisor instanceof PrototypePlaceholderAdvisor pa) {
+			if (advisor instanceof PrototypePlaceholderAdvisor ppa) {
 				if (logger.isDebugEnabled()) {
-					logger.debug("Refreshing bean named '" + pa.getBeanName() + "'");
+					logger.debug("Refreshing bean named '" + ppa.getBeanName() + "'");
 				}
 				// Replace the placeholder with a fresh prototype instance resulting from a getBean lookup
 				if (this.beanFactory == null) {
 					throw new IllegalStateException("No BeanFactory available anymore (probably due to " +
-							"serialization) - cannot resolve prototype advisor '" + pa.getBeanName() + "'");
+							"serialization) - cannot resolve prototype advisor '" + ppa.getBeanName() + "'");
 				}
-				Object bean = this.beanFactory.getBean(pa.getBeanName());
+				Object bean = this.beanFactory.getBean(ppa.getBeanName());
 				Advisor refreshedAdvisor = namedBeanToAdvisor(bean);
 				freshAdvisors.add(refreshedAdvisor);
 			}

spring-aop/src/main/java/org/springframework/aop/scope/ScopedProxyUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2022 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.

spring-aop/src/main/java/org/springframework/aop/support/AbstractPointcutAdvisor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 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.

spring-beans/src/main/java/org/springframework/beans/AbstractNestablePropertyAccessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 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.
@@ -60,6 +60,7 @@ import org.springframework.util.StringUtils;
  * @author Stephane Nicoll
  * @author Rod Johnson
  * @author Rob Harrop
+ * @author Sam Brannen
  * @since 4.2
  * @see #registerCustomEditor
  * @see #setPropertyValues
@@ -279,7 +280,7 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 		}
 	}
 
-	@SuppressWarnings("unchecked")
+	@SuppressWarnings({"unchecked", "rawtypes"})
 	private void processKeyedProperty(PropertyTokenHolder tokens, PropertyValue pv) {
 		Object propValue = getPropertyHoldingValue(tokens);
 		PropertyHandler ph = getLocalPropertyHandler(tokens.actualName);
@@ -318,9 +319,8 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 			}
 		}
 
-		else if (propValue instanceof List) {
+		else if (propValue instanceof List list) {
 			Class<?> requiredType = ph.getCollectionType(tokens.keys.length);
-			List<Object> list = (List<Object>) propValue;
 			int index = Integer.parseInt(lastKey);
 			Object oldValue = null;
 			if (isExtractOldValueForEditor() && index < list.size()) {
@@ -354,10 +354,9 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 			}
 		}
 
-		else if (propValue instanceof Map) {
+		else if (propValue instanceof Map map) {
 			Class<?> mapKeyType = ph.getMapKeyType(tokens.keys.length);
 			Class<?> mapValueType = ph.getMapValueType(tokens.keys.length);
-			Map<Object, Object> map = (Map<Object, Object>) propValue;
 			// IMPORTANT: Do not pass full property name in here - property editors
 			// must not kick in for map keys but rather only for map values.
 			TypeDescriptor typeDescriptor = TypeDescriptor.valueOf(mapKeyType);
@@ -446,8 +445,8 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 							oldValue = ph.getValue();
 						}
 						catch (Exception ex) {
-							if (ex instanceof PrivilegedActionException) {
-								ex = ((PrivilegedActionException) ex).getException();
+							if (ex instanceof PrivilegedActionException pae) {
+								ex = pae.getException();
 							}
 							if (logger.isDebugEnabled()) {
 								logger.debug("Could not read previous value of property '" +
@@ -617,7 +616,7 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 		return nestedPa.getPropertyValue(tokens);
 	}
 
-	@SuppressWarnings("unchecked")
+	@SuppressWarnings({"unchecked", "rawtypes"})
 	@Nullable
 	protected Object getPropertyValue(PropertyTokenHolder tokens) throws BeansException {
 		String propertyName = tokens.canonicalName;
@@ -653,15 +652,13 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 						value = growArrayIfNecessary(value, index, indexedPropertyName.toString());
 						value = Array.get(value, index);
 					}
-					else if (value instanceof List) {
+					else if (value instanceof List list) {
 						int index = Integer.parseInt(key);
-						List<Object> list = (List<Object>) value;
 						growCollectionIfNecessary(list, index, indexedPropertyName.toString(), ph, i + 1);
 						value = list.get(index);
 					}
-					else if (value instanceof Set) {
+					else if (value instanceof Set set) {
 						// Apply index to Iterator in case of a Set.
-						Set<Object> set = (Set<Object>) value;
 						int index = Integer.parseInt(key);
 						if (index < 0 || index >= set.size()) {
 							throw new InvalidPropertyException(getRootClass(), this.nestedPath + propertyName,
@@ -677,8 +674,7 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 							}
 						}
 					}
-					else if (value instanceof Map) {
-						Map<Object, Object> map = (Map<Object, Object>) value;
+					else if (value instanceof Map map) {
 						Class<?> mapKeyType = ph.getResolvableType().getNested(i + 1).asMap().resolveGeneric(0);
 						// IMPORTANT: Do not pass full property name in here - property editors
 						// must not kick in for map keys but rather only for map values.
@@ -841,7 +837,7 @@ public abstract class AbstractNestablePropertyAccessor extends AbstractPropertyA
 		PropertyTokenHolder tokens = getPropertyNameTokens(nestedProperty);
 		String canonicalName = tokens.canonicalName;
 		Object value = getPropertyValue(tokens);
-		if (value == null || (value instanceof Optional<?> optional && optional.isEmpty()) {
+		if (value == null || (value instanceof Optional<?> optional && optional.isEmpty())) {
 			if (isAutoGrowNestedPaths()) {
 				value = setDefaultValue(tokens);
 			}

spring-beans/src/main/java/org/springframework/beans/factory/BeanFactoryUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 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.
@@ -198,9 +198,9 @@ public abstract class BeanFactoryUtils {
 		Assert.notNull(lbf, "ListableBeanFactory must not be null");
 		String[] result = lbf.getBeanNamesForType(type, includeNonSingletons, allowEagerInit);
 		if (lbf instanceof HierarchicalBeanFactory hbf) {
-			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory) {
+			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory pbf) {
 				String[] parentResult = beanNamesForTypeIncludingAncestors(
-						(ListableBeanFactory) hbf.getParentBeanFactory(), type, includeNonSingletons, allowEagerInit);
+						pbf, type, includeNonSingletons, allowEagerInit);
 				result = mergeNamesWithParent(result, parentResult, hbf);
 			}
 		}
@@ -259,9 +259,9 @@ public abstract class BeanFactoryUtils {
 		Assert.notNull(lbf, "ListableBeanFactory must not be null");
 		String[] result = lbf.getBeanNamesForType(type, includeNonSingletons, allowEagerInit);
 		if (lbf instanceof HierarchicalBeanFactory hbf) {
-			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory) {
+			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory pbf) {
 				String[] parentResult = beanNamesForTypeIncludingAncestors(
-						(ListableBeanFactory) hbf.getParentBeanFactory(), type, includeNonSingletons, allowEagerInit);
+						pbf, type, includeNonSingletons, allowEagerInit);
 				result = mergeNamesWithParent(result, parentResult, hbf);
 			}
 		}
@@ -284,9 +284,8 @@ public abstract class BeanFactoryUtils {
 		Assert.notNull(lbf, "ListableBeanFactory must not be null");
 		String[] result = lbf.getBeanNamesForAnnotation(annotationType);
 		if (lbf instanceof HierarchicalBeanFactory hbf) {
-			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory) {
-				String[] parentResult = beanNamesForAnnotationIncludingAncestors(
-						(ListableBeanFactory) hbf.getParentBeanFactory(), annotationType);
+			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory pbf) {
+				String[] parentResult = beanNamesForAnnotationIncludingAncestors(pbf, annotationType);
 				result = mergeNamesWithParent(result, parentResult, hbf);
 			}
 		}
@@ -321,9 +320,8 @@ public abstract class BeanFactoryUtils {
 		Map<String, T> result = new LinkedHashMap<>(4);
 		result.putAll(lbf.getBeansOfType(type));
 		if (lbf instanceof HierarchicalBeanFactory hbf) {
-			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory) {
-				Map<String, T> parentResult = beansOfTypeIncludingAncestors(
-						(ListableBeanFactory) hbf.getParentBeanFactory(), type);
+			if (hbf.getParentBeanFactory() instanceof ListableBeanFactory pbf) {
+				Map<String, T> parentResult = beansOfTypeIncludingAncestors(pbf, type);
 				parentResult.forEach((beanName, beanInstance) -> {
 					if (!result.containsKey(beanName) && !hbf.containsLocalBean(beanName)) {
 						result.put(beanName, beanInstance);

spring-test/src/main/java/org/springframework/mock/web/MockHttpServletResponse.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 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.
@@ -423,7 +423,7 @@ public class MockHttpServletResponse implements HttpServletResponse {
 			buf.append("; Domain=").append(cookie.getDomain());
 		}
 		int maxAge = cookie.getMaxAge();
-		ZonedDateTime expires = (cookie instanceof MockCookie ? ((MockCookie) cookie).getExpires() : null);
+		ZonedDateTime expires = (cookie instanceof MockCookie mockCookie? mockCookie.getExpires() : null);
 		if (maxAge >= 0) {
 			buf.append("; Max-Age=").append(maxAge);
 			buf.append("; Expires=");
@@ -692,7 +692,7 @@ public class MockHttpServletResponse implements HttpServletResponse {
 			return true;
 		}
 		else if (HttpHeaders.CONTENT_LENGTH.equalsIgnoreCase(name)) {
-			setContentLength(value instanceof Number ? ((Number) value).intValue() :
+			setContentLength(value instanceof Number number ? number.intValue() :
 					Integer.parseInt(value.toString()));
 			return true;
 		}

spring-web/src/main/java/org/springframework/http/HttpMethod.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 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.
@@ -177,8 +177,8 @@ public final class HttpMethod implements Comparable<HttpMethod>, Serializable {
 		if (this == o) {
 			return true;
 		}
-		else if (o instanceof HttpMethod other) {
-			return this.name.equals(other.name);
+		else if (o instanceof HttpMethod otherMethod) {
+			return this.name.equals(otherMethod.name);
 		}
 		return false;
 	}
@@ -187,4 +187,5 @@ public final class HttpMethod implements Comparable<HttpMethod>, Serializable {
 	public String toString() {
 		return this.name;
 	}
+
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 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.
@@ -423,7 +423,7 @@ public class MockHttpServletResponse implements HttpServletResponse {
 			buf.append("; Domain=").append(cookie.getDomain());
 		}
 		int maxAge = cookie.getMaxAge();
-		ZonedDateTime expires = (cookie instanceof MockCookie ? ((MockCookie) cookie).getExpires() : null);
+		ZonedDateTime expires = (cookie instanceof MockCookie mockCookie? mockCookie.getExpires() : null);
 		if (maxAge >= 0) {
 			buf.append("; Max-Age=").append(maxAge);
 			buf.append("; Expires=");

spring-webflux/src/main/java/org/springframework/web/reactive/result/method/annotation/RequestMappingHandlerAdapter.java

@@ -149,8 +149,8 @@ public class RequestMappingHandlerAdapter implements HandlerAdapter, Application
 	 */
 	@Override
 	public void setApplicationContext(ApplicationContext applicationContext) {
-		if (applicationContext instanceof ConfigurableApplicationContext) {
-			this.applicationContext = (ConfigurableApplicationContext) applicationContext;
+		if (applicationContext instanceof ConfigurableApplicationContext cac) {
+			this.applicationContext = cac;
 		}
 	}
 

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2022 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.