Apply "advanced" instanceof pattern matching

Author: sbrannen

spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassEnhancer.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.
@@ -189,7 +189,7 @@ public ConditionalCallbackFilter(Callback[] callbacks) {
 		public int accept(Method method) {
 			for (int i = 0; i < this.callbacks.length; i++) {
 				Callback callback = this.callbacks[i];
-				if (!(callback instanceof ConditionalCallback) || ((ConditionalCallback) callback).isMatch(method)) {
+				if (!(callback instanceof ConditionalCallback conditional) || conditional.isMatch(method)) {
 					return i;
 				}
 			}

spring-jdbc/src/main/java/org/springframework/jdbc/datasource/DataSourceUtils.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.
@@ -402,7 +402,7 @@ public static void doReleaseConnection(@Nullable Connection con, @Nullable DataS
 	 * @see SmartDataSource#shouldClose(Connection)
 	 */
 	public static void doCloseConnection(Connection con, @Nullable DataSource dataSource) throws SQLException {
-		if (!(dataSource instanceof SmartDataSource) || ((SmartDataSource) dataSource).shouldClose(con)) {
+		if (!(dataSource instanceof SmartDataSource smartDataSource) || smartDataSource.shouldClose(con)) {
 			con.close();
 		}
 	}

spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceUrlEncodingFilter.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.
@@ -54,14 +54,14 @@ public class ResourceUrlEncodingFilter extends GenericFilterBean {
 	public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain)
 			throws ServletException, IOException {
 
-		if (!(request instanceof HttpServletRequest) || !(response instanceof HttpServletResponse)) {
+		if (!(request instanceof HttpServletRequest httpRequest) || !(response instanceof HttpServletResponse httpResponse)) {
 			throw new ServletException("ResourceUrlEncodingFilter only supports HTTP requests");
 		}
 
 		ResourceUrlEncodingRequestWrapper wrappedRequest =
-				new ResourceUrlEncodingRequestWrapper((HttpServletRequest) request);
+				new ResourceUrlEncodingRequestWrapper(httpRequest);
 		ResourceUrlEncodingResponseWrapper wrappedResponse =
-				new ResourceUrlEncodingResponseWrapper(wrappedRequest, (HttpServletResponse) response);
+				new ResourceUrlEncodingResponseWrapper(wrappedRequest, httpResponse);
 
 		filterChain.doFilter(wrappedRequest, wrappedResponse);
 	}