diff --git a/spring-beans/src/jmh/java/org/springframework/beans/factory/DefaultListableBeanFactoryBenchmark.java b/spring-beans/src/jmh/java/org/springframework/beans/factory/DefaultListableBeanFactoryBenchmark.java
index 4679dd17de3..58e6b215bba 100644
--- a/spring-beans/src/jmh/java/org/springframework/beans/factory/DefaultListableBeanFactoryBenchmark.java
+++ b/spring-beans/src/jmh/java/org/springframework/beans/factory/DefaultListableBeanFactoryBenchmark.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 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.
diff --git a/spring-beans/src/main/java/org/springframework/beans/PropertyAccessorUtils.java b/spring-beans/src/main/java/org/springframework/beans/PropertyAccessorUtils.java
index c3583927f5d..465b3ff8b1d 100644
--- a/spring-beans/src/main/java/org/springframework/beans/PropertyAccessorUtils.java
+++ b/spring-beans/src/main/java/org/springframework/beans/PropertyAccessorUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 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.
diff --git a/spring-context/src/main/java/org/springframework/context/annotation/LoadTimeWeavingConfiguration.java b/spring-context/src/main/java/org/springframework/context/annotation/LoadTimeWeavingConfiguration.java
index c08dd42b244..86b1ede8f70 100644
--- a/spring-context/src/main/java/org/springframework/context/annotation/LoadTimeWeavingConfiguration.java
+++ b/spring-context/src/main/java/org/springframework/context/annotation/LoadTimeWeavingConfiguration.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 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.
diff --git a/spring-context/src/main/java/org/springframework/format/datetime/DateFormatter.java b/spring-context/src/main/java/org/springframework/format/datetime/DateFormatter.java
index 4b909a33247..c3f8811a914 100644
--- a/spring-context/src/main/java/org/springframework/format/datetime/DateFormatter.java
+++ b/spring-context/src/main/java/org/springframework/format/datetime/DateFormatter.java
@@ -269,7 +269,7 @@ public class DateFormatter implements Formatter<Date> {
 			if (timeStyle != -1) {
 				return DateFormat.getTimeInstance(timeStyle, locale);
 			}
-			throw new IllegalStateException("Unsupported style pattern '" + this.stylePattern + "'");
+			throw unsupportedStylePatternException();
 
 		}
 		return DateFormat.getDateInstance(this.style, locale);
@@ -284,10 +284,14 @@ public class DateFormatter implements Formatter<Date> {
 				case 'L' -> DateFormat.LONG;
 				case 'F' -> DateFormat.FULL;
 				case '-' -> -1;
-				default -> throw new IllegalStateException("Unsupported style pattern '" + this.stylePattern + "'");
+				default -> throw unsupportedStylePatternException();
 			};
 		}
-		throw new IllegalStateException("Unsupported style pattern '" + this.stylePattern + "'");
+		throw unsupportedStylePatternException();
+	}
+
+	private IllegalStateException unsupportedStylePatternException() {
+		return new IllegalStateException("Unsupported style pattern '" + this.stylePattern + "'");
 	}
 
 }
diff --git a/spring-core/src/main/java/org/springframework/util/xml/ListBasedXMLEventReader.java b/spring-core/src/main/java/org/springframework/util/xml/ListBasedXMLEventReader.java
index abb303a2361..488b70b47d9 100644
--- a/spring-core/src/main/java/org/springframework/util/xml/ListBasedXMLEventReader.java
+++ b/spring-core/src/main/java/org/springframework/util/xml/ListBasedXMLEventReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 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.
diff --git a/spring-jdbc/src/main/java/org/springframework/jdbc/core/JdbcTemplate.java b/spring-jdbc/src/main/java/org/springframework/jdbc/core/JdbcTemplate.java
index c6979a21c81..9e68004e6b6 100644
--- a/spring-jdbc/src/main/java/org/springframework/jdbc/core/JdbcTemplate.java
+++ b/spring-jdbc/src/main/java/org/springframework/jdbc/core/JdbcTemplate.java
@@ -1656,20 +1656,20 @@ public class JdbcTemplate extends JdbcAccessor implements JdbcOperations {
 			// Invocation on ConnectionProxy interface coming in...
 
 			return switch (method.getName()) {
+				// Only consider equal when proxies are identical.
 				case "equals" -> (proxy == args[0]);
-					// Only consider equal when proxies are identical.
+				// Use hashCode of PersistenceManager proxy.
 				case "hashCode" -> System.identityHashCode(proxy);
-					// Use hashCode of PersistenceManager proxy.
+				// Handle close method: suppress, not valid.
 				case "close" -> null;
-					// Handle close method: suppress, not valid.
 				case "isClosed" -> false;
+				// Handle getTargetConnection method: return underlying Connection.
 				case "getTargetConnection" -> this.target;
-					// Handle getTargetConnection method: return underlying Connection.
 				case "unwrap" -> (((Class<?>) args[0]).isInstance(proxy) ? proxy : this.target.unwrap((Class<?>) args[0]));
 				case "isWrapperFor" -> (((Class<?>) args[0]).isInstance(proxy) || this.target.isWrapperFor((Class<?>) args[0]));
 				default -> {
-					// Invoke method on target Connection.
 					try {
+						// Invoke method on target Connection.
 						Object retVal = method.invoke(this.target, args);
 
 						// If return value is a JDBC Statement, apply statement settings
diff --git a/spring-jdbc/src/main/java/org/springframework/jdbc/datasource/SingleConnectionDataSource.java b/spring-jdbc/src/main/java/org/springframework/jdbc/datasource/SingleConnectionDataSource.java
index 59074efea62..c978e37aa04 100644
--- a/spring-jdbc/src/main/java/org/springframework/jdbc/datasource/SingleConnectionDataSource.java
+++ b/spring-jdbc/src/main/java/org/springframework/jdbc/datasource/SingleConnectionDataSource.java
@@ -350,20 +350,20 @@ public class SingleConnectionDataSource extends DriverManagerDataSource
 			// Invocation on ConnectionProxy interface coming in...
 
 			return switch (method.getName()) {
+				// Only consider equal when proxies are identical.
 				case "equals" -> (proxy == args[0]);
-					// Only consider equal when proxies are identical.
+				// Use hashCode of Connection proxy.
 				case "hashCode" -> System.identityHashCode(proxy);
-					// Use hashCode of Connection proxy.
+				// Handle close method: don't pass the call on.
 				case "close" -> null;
-					// Handle close method: don't pass the call on.
 				case "isClosed" -> this.target.isClosed();
+				// Handle getTargetConnection method: return underlying Connection.
 				case "getTargetConnection" -> this.target;
-					// Handle getTargetConnection method: return underlying Connection.
 				case "unwrap" -> (((Class<?>) args[0]).isInstance(proxy) ? proxy : this.target.unwrap((Class<?>) args[0]));
 				case "isWrapperFor" -> (((Class<?>) args[0]).isInstance(proxy) || this.target.isWrapperFor((Class<?>) args[0]));
 				default -> {
-					// Invoke method on target Connection.
 					try {
+						// Invoke method on target Connection.
 						yield method.invoke(this.target, args);
 					}
 					catch (InvocationTargetException ex) {
diff --git a/spring-jms/src/main/java/org/springframework/jms/connection/SingleConnectionFactory.java b/spring-jms/src/main/java/org/springframework/jms/connection/SingleConnectionFactory.java
index 763fba93ece..5f5850dc199 100644
--- a/spring-jms/src/main/java/org/springframework/jms/connection/SingleConnectionFactory.java
+++ b/spring-jms/src/main/java/org/springframework/jms/connection/SingleConnectionFactory.java
@@ -625,7 +625,7 @@ public class SingleConnectionFactory implements ConnectionFactory, QueueConnecti
 					else {
 						throw new jakarta.jms.IllegalStateException(
 								"setClientID call not supported on proxy for shared Connection. " +
-										"Set the 'clientId' property on the SingleConnectionFactory instead.");
+								"Set the 'clientId' property on the SingleConnectionFactory instead.");
 					}
 				}
 				case "setExceptionListener" -> {
@@ -647,9 +647,9 @@ public class SingleConnectionFactory implements ConnectionFactory, QueueConnecti
 						else {
 							throw new jakarta.jms.IllegalStateException(
 									"setExceptionListener call not supported on proxy for shared Connection. " +
-											"Set the 'exceptionListener' property on the SingleConnectionFactory instead. " +
-											"Alternatively, activate SingleConnectionFactory's 'reconnectOnException' feature, " +
-											"which will allow for registering further ExceptionListeners to the recovery chain.");
+									"Set the 'exceptionListener' property on the SingleConnectionFactory instead. " +
+									"Alternatively, activate SingleConnectionFactory's 'reconnectOnException' feature, " +
+									"which will allow for registering further ExceptionListeners to the recovery chain.");
 						}
 					}
 				}
diff --git a/spring-jms/src/main/java/org/springframework/jms/connection/TransactionAwareConnectionFactoryProxy.java b/spring-jms/src/main/java/org/springframework/jms/connection/TransactionAwareConnectionFactoryProxy.java
index 389026e2511..ad903157548 100644
--- a/spring-jms/src/main/java/org/springframework/jms/connection/TransactionAwareConnectionFactoryProxy.java
+++ b/spring-jms/src/main/java/org/springframework/jms/connection/TransactionAwareConnectionFactoryProxy.java
@@ -332,21 +332,21 @@ public class TransactionAwareConnectionFactoryProxy
 			// Invocation on SessionProxy interface coming in...
 
 			return switch (method.getName()) {
+				// Only consider equal when proxies are identical.
 				case "equals" -> (proxy == args[0]);
-					// Only consider equal when proxies are identical.
+				// Use hashCode of Connection proxy.
 				case "hashCode" -> System.identityHashCode(proxy);
-					// Use hashCode of Connection proxy.
 				case "commit" ->
 					throw new TransactionInProgressException("Commit call not allowed within a managed transaction");
 				case "rollback" ->
 					throw new TransactionInProgressException("Rollback call not allowed within a managed transaction");
+				// Handle close method: not to be closed within a transaction.
 				case "close" -> null;
-					// Handle close method: not to be closed within a transaction.
+				// Handle getTargetSession method: return underlying Session.
 				case "getTargetSession" -> this.target;
-					// Handle getTargetSession method: return underlying Session.
 				default -> {
-					// Invoke method on target Session.
 					try {
+						// Invoke method on target Session.
 						yield method.invoke(this.target, args);
 					}
 					catch (InvocationTargetException ex) {
diff --git a/spring-orm/src/main/java/org/springframework/orm/hibernate5/HibernateTemplate.java b/spring-orm/src/main/java/org/springframework/orm/hibernate5/HibernateTemplate.java
index d5870122f22..74d662f3dc5 100644
--- a/spring-orm/src/main/java/org/springframework/orm/hibernate5/HibernateTemplate.java
+++ b/spring-orm/src/main/java/org/springframework/orm/hibernate5/HibernateTemplate.java
@@ -1151,15 +1151,15 @@ public class HibernateTemplate implements HibernateOperations, InitializingBean
 			// Invocation on Session interface coming in...
 
 			return switch (method.getName()) {
+				// Only consider equal when proxies are identical.
 				case "equals" -> (proxy == args[0]);
-					// Only consider equal when proxies are identical.
+				// Use hashCode of Session proxy.
 				case "hashCode" -> System.identityHashCode(proxy);
-					// Use hashCode of Session proxy.
+				// Handle close method: suppress, not valid.
 				case "close" -> null;
-					// Handle close method: suppress, not valid.
 				default -> {
-					// Invoke method on target Session.
 					try {
+						// Invoke method on target Session.
 						Object retVal = method.invoke(this.target, args);
 
 						// If return value is a Query or Criteria, apply transaction timeout.
diff --git a/spring-orm/src/main/java/org/springframework/orm/hibernate5/LocalSessionFactoryBuilder.java b/spring-orm/src/main/java/org/springframework/orm/hibernate5/LocalSessionFactoryBuilder.java
index a931561dbf1..6ab0a086025 100644
--- a/spring-orm/src/main/java/org/springframework/orm/hibernate5/LocalSessionFactoryBuilder.java
+++ b/spring-orm/src/main/java/org/springframework/orm/hibernate5/LocalSessionFactoryBuilder.java
@@ -413,17 +413,17 @@ public class LocalSessionFactoryBuilder extends Configuration {
 		@Override
 		public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
 			return switch (method.getName()) {
+				// Only consider equal when proxies are identical.
 				case "equals" -> (proxy == args[0]);
-					// Only consider equal when proxies are identical.
+				// Use hashCode of EntityManagerFactory proxy.
 				case "hashCode" -> System.identityHashCode(proxy);
-					// Use hashCode of EntityManagerFactory proxy.
 				case "getProperties" -> getProperties();
+				// Call coming in through InfrastructureProxy interface...
 				case "getWrappedObject" -> getSessionFactory();
-					// Call coming in through InfrastructureProxy interface...
 				default -> {
-					// Regular delegation to the target SessionFactory,
-					// enforcing its full initialization...
 					try {
+						// Regular delegation to the target SessionFactory,
+						// enforcing its full initialization...
 						yield method.invoke(getSessionFactory(), args);
 					}
 					catch (InvocationTargetException ex) {
diff --git a/spring-orm/src/main/java/org/springframework/orm/jpa/AbstractEntityManagerFactoryBean.java b/spring-orm/src/main/java/org/springframework/orm/jpa/AbstractEntityManagerFactoryBean.java
index 1fcd9a58985..60cf247d091 100644
--- a/spring-orm/src/main/java/org/springframework/orm/jpa/AbstractEntityManagerFactoryBean.java
+++ b/spring-orm/src/main/java/org/springframework/orm/jpa/AbstractEntityManagerFactoryBean.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.
diff --git a/spring-orm/src/main/java/org/springframework/orm/jpa/ExtendedEntityManagerCreator.java b/spring-orm/src/main/java/org/springframework/orm/jpa/ExtendedEntityManagerCreator.java
index 36428552302..6acec2dfa54 100644
--- a/spring-orm/src/main/java/org/springframework/orm/jpa/ExtendedEntityManagerCreator.java
+++ b/spring-orm/src/main/java/org/springframework/orm/jpa/ExtendedEntityManagerCreator.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.
diff --git a/spring-orm/src/main/java/org/springframework/orm/jpa/SharedEntityManagerCreator.java b/spring-orm/src/main/java/org/springframework/orm/jpa/SharedEntityManagerCreator.java
index 7c7c0827101..e5991b3913b 100644
--- a/spring-orm/src/main/java/org/springframework/orm/jpa/SharedEntityManagerCreator.java
+++ b/spring-orm/src/main/java/org/springframework/orm/jpa/SharedEntityManagerCreator.java
@@ -264,7 +264,7 @@ public abstract class SharedEntityManagerCreator {
 				case "getTransaction" -> {
 					throw new IllegalStateException(
 							"Not allowed to create transaction on shared EntityManager - " +
-									"use Spring transactions or EJB CMT instead");
+							"use Spring transactions or EJB CMT instead");
 				}
 			}
 
diff --git a/spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/SingleConnectionFactory.java b/spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/SingleConnectionFactory.java
index dfa27270a23..24854d6da14 100644
--- a/spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/SingleConnectionFactory.java
+++ b/spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/SingleConnectionFactory.java
@@ -252,16 +252,16 @@ public class SingleConnectionFactory extends DelegatingConnectionFactory
 		@Nullable
 		public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
 			return switch (method.getName()) {
+				// Only consider equal when proxies are identical.
 				case "equals" -> proxy == args[0];
-					// Only consider equal when proxies are identical.
+				// Use hashCode of PersistenceManager proxy.
 				case "hashCode" -> System.identityHashCode(proxy);
-					// Use hashCode of PersistenceManager proxy.
 				case "unwrap" -> this.target;
+				// Handle close method: suppress, not valid.
 				case "close" -> Mono.empty();
-					// Handle close method: suppress, not valid.
 				default -> {
-					// Invoke method on target Connection.
 					try {
+						// Invoke method on target Connection.
 						yield method.invoke(this.target, args);
 					}
 					catch (InvocationTargetException ex) {
diff --git a/spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/TransactionAwareConnectionFactoryProxy.java b/spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/TransactionAwareConnectionFactoryProxy.java
index a480ff17408..c9d47089e87 100644
--- a/spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/TransactionAwareConnectionFactoryProxy.java
+++ b/spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/TransactionAwareConnectionFactoryProxy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 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.
@@ -145,17 +145,17 @@ public class TransactionAwareConnectionFactoryProxy extends DelegatingConnection
 
 			return switch (method.getName()) {
 				case "unwrap" -> this.connection;
+				// Handle close method: only close if not within a transaction.
 				case "close" -> ConnectionFactoryUtils.doReleaseConnection(this.connection, this.targetConnectionFactory)
 							.doOnSubscribe(n -> this.closed = true);
-				// Handle close method: only close if not within a transaction.
 				case "isClosed" -> this.closed;
 				default -> {
 					if (this.closed) {
 						throw new IllegalStateException("Connection handle already closed");
 					}
 
-					// Invoke method on target Connection.
 					try {
+						// Invoke method on target Connection.
 						yield method.invoke(this.connection, args);
 					}
 					catch (InvocationTargetException ex) {
@@ -167,7 +167,7 @@ public class TransactionAwareConnectionFactoryProxy extends DelegatingConnection
 
 		private String proxyToString(@Nullable Object proxy) {
 			// Allow for differentiating between the proxy and the raw Connection.
-			return "Transaction-aware proxy for target Connection [" + this.connection.toString() + "]";
+			return "Transaction-aware proxy for target Connection [" + this.connection + "]";
 		}
 
 	}
diff --git a/spring-r2dbc/src/main/java/org/springframework/r2dbc/core/DefaultDatabaseClient.java b/spring-r2dbc/src/main/java/org/springframework/r2dbc/core/DefaultDatabaseClient.java
index ff1c91ce4a6..e043240cd92 100644
--- a/spring-r2dbc/src/main/java/org/springframework/r2dbc/core/DefaultDatabaseClient.java
+++ b/spring-r2dbc/src/main/java/org/springframework/r2dbc/core/DefaultDatabaseClient.java
@@ -520,16 +520,16 @@ final class DefaultDatabaseClient implements DatabaseClient {
 		@Nullable
 		public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
 			return switch (method.getName()) {
+				// Only consider equal when proxies are identical.
 				case "equals" -> proxy == args[0];
-					// Only consider equal when proxies are identical.
+				// Use hashCode of PersistenceManager proxy.
 				case "hashCode" -> System.identityHashCode(proxy);
-					// Use hashCode of PersistenceManager proxy.
 				case "unwrap" -> this.target;
+				// Handle close method: suppress, not valid.
 				case "close" -> Mono.error(new UnsupportedOperationException("Close is not supported!"));
-					// Handle close method: suppress, not valid.
 				default -> {
-					// Invoke method on target Connection.
 					try {
+						// Invoke method on target Connection.
 						yield method.invoke(this.target, args);
 					}
 					catch (InvocationTargetException ex) {
diff --git a/spring-tx/src/main/java/org/springframework/transaction/jta/JtaAfterCompletionSynchronization.java b/spring-tx/src/main/java/org/springframework/transaction/jta/JtaAfterCompletionSynchronization.java
index b037e12ee20..fede45badef 100644
--- a/spring-tx/src/main/java/org/springframework/transaction/jta/JtaAfterCompletionSynchronization.java
+++ b/spring-tx/src/main/java/org/springframework/transaction/jta/JtaAfterCompletionSynchronization.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 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.