Stop referring to JDO PersistenceManager in comments

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

@@ -1658,7 +1658,7 @@ public class JdbcTemplate extends JdbcAccessor implements JdbcOperations {
 			return switch (method.getName()) {
 				// Only consider equal when proxies are identical.
 				case "equals" -> (proxy == args[0]);
-				// Use hashCode of PersistenceManager proxy.
+				// Use hashCode of Connection proxy.
 				case "hashCode" -> System.identityHashCode(proxy);
 				// Handle close method: suppress, not valid.
 				case "close" -> null;

spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/SingleConnectionFactory.java

@@ -254,7 +254,7 @@ public class SingleConnectionFactory extends DelegatingConnectionFactory
 			return switch (method.getName()) {
 				// Only consider equal when proxies are identical.
 				case "equals" -> proxy == args[0];
-				// Use hashCode of PersistenceManager proxy.
+				// Use hashCode of Connection proxy.
 				case "hashCode" -> System.identityHashCode(proxy);
 				case "unwrap" -> this.target;
 				// Handle close method: suppress, not valid.

spring-r2dbc/src/main/java/org/springframework/r2dbc/core/DefaultDatabaseClient.java

@@ -522,7 +522,7 @@ final class DefaultDatabaseClient implements DatabaseClient {
 			return switch (method.getName()) {
 				// Only consider equal when proxies are identical.
 				case "equals" -> proxy == args[0];
-				// Use hashCode of PersistenceManager proxy.
+				// Use hashCode of Connection proxy.
 				case "hashCode" -> System.identityHashCode(proxy);
 				case "unwrap" -> this.target;
 				// Handle close method: suppress, not valid.