Polishing

spring-context/src/main/java/org/springframework/cache/annotation/CacheConfig.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2023 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.
@@ -32,6 +32,7 @@ import java.lang.annotation.Target;
  * @author Stephane Nicoll
  * @author Sam Brannen
  * @since 4.1
+ * @see Cacheable
  */
 @Target(ElementType.TYPE)
 @Retention(RetentionPolicy.RUNTIME)
@@ -42,8 +43,10 @@ public @interface CacheConfig {
 	 * Names of the default caches to consider for caching operations defined
 	 * in the annotated class.
 	 * <p>If none is set at the operation level, these are used instead of the default.
-	 * <p>May be used to determine the target cache (or caches), matching the
-	 * qualifier value or the bean names of a specific bean definition.
+	 * <p>Names may be used to determine the target cache(s), to be resolved via the
+	 * configured {@link #cacheResolver()} which typically delegates to
+	 * {@link org.springframework.cache.CacheManager#getCache}.
+	 * For further details see {@link Cacheable#cacheNames()}.
 	 */
 	String[] cacheNames() default {};
 

spring-context/src/main/java/org/springframework/cache/annotation/Cacheable.java

@@ -68,8 +68,12 @@ public @interface Cacheable {
 
 	/**
 	 * Names of the caches in which method invocation results are stored.
-	 * <p>Names may be used to determine the target cache (or caches), matching
-	 * the qualifier value or bean name of a specific bean definition.
+	 * <p>Names may be used to determine the target cache(s), to be resolved via the
+	 * configured {@link #cacheResolver()} which typically delegates to
+	 * {@link org.springframework.cache.CacheManager#getCache}.
+	 * <p>This will usually be a single cache name. If multiple names are specified,
+	 * they will be consulted for a cache hit in the order of definition, and they
+	 * will all receive a put/evict request for the same newly cached value.
 	 * @since 4.2
 	 * @see #value
 	 * @see CacheConfig#cacheNames

spring-jdbc/src/main/java/org/springframework/jdbc/core/JdbcTemplate.java

@@ -60,7 +60,7 @@ import org.springframework.util.LinkedCaseInsensitiveMap;
 import org.springframework.util.StringUtils;
 
 /**
- * <b>This is the central class in the JDBC core package.</b>
+ * <b>This is the central delegate in the JDBC core package.</b>
  * It simplifies the use of JDBC and helps to avoid common errors.
  * It executes core JDBC workflow, leaving application code to provide SQL
  * and extract results. This class executes SQL queries or updates, initiating
@@ -417,9 +417,7 @@ public class JdbcTemplate extends JdbcAccessor implements JdbcOperations {
 			logger.debug("Executing SQL statement [" + sql + "]");
 		}
 
-		/**
-		 * Callback to execute the statement.
-		 */
+		// Callback to execute the statement.
 		class ExecuteStatementCallback implements StatementCallback<Object>, SqlProvider {
 			@Override
 			@Nullable

spring-jdbc/src/main/java/org/springframework/jdbc/datasource/TransactionAwareDataSourceProxy.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 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.
@@ -186,7 +186,7 @@ public class TransactionAwareDataSourceProxy extends DelegatingDataSource {
 					// Allow for differentiating between the proxy and the raw Connection.
 					StringBuilder sb = new StringBuilder("Transaction-aware proxy for target Connection ");
 					if (this.target != null) {
-						sb.append('[').append(this.target.toString()).append(']');
+						sb.append('[').append(this.target).append(']');
 					}
 					else {
 						sb.append(" from DataSource [").append(this.targetDataSource).append(']');