Polishing

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -138,6 +138,7 @@ public class DataSourceTransactionManager extends AbstractPlatformTransactionMan
 		afterPropertiesSet();
 	}
 
+
 	/**
 	 * Set the JDBC DataSource that this instance should manage transactions for.
 	 * <p>This will typically be a locally defined DataSource, for example an
@@ -409,13 +410,9 @@ public class DataSourceTransactionManager extends AbstractPlatformTransactionMan
 			throws SQLException {
 
 		if (isEnforceReadOnly() && definition.isReadOnly()) {
-			Statement stmt = con.createStatement();
-			try {
+			try (Statement stmt = con.createStatement()) {
 				stmt.executeUpdate("SET TRANSACTION READ ONLY");
 			}
-			finally {
-				stmt.close();
-			}
 		}
 	}