--- a/java/sql-dk/src/info/globalcode/sql/dk/DatabaseConnection.java	Fri May 09 14:16:45 2014 +0200
+++ b/java/sql-dk/src/info/globalcode/sql/dk/DatabaseConnection.java	Wed Sep 24 22:53:30 2014 +0200
@@ -47,9 +47,9 @@
 	private static final Logger log = Logger.getLogger(DatabaseConnection.class.getName());
 	private static final String JDBC_PROPERTY_USER = "user";
 	public static final String JDBC_PROPERTY_PASSWORD = "password";
-	private DatabaseDefinition databaseDefinition;
-	private Connection connection;
-	private Properties properties;
+	private final DatabaseDefinition databaseDefinition;
+	private final Connection connection;
+	private final Properties properties;
 
 	public DatabaseConnection(DatabaseDefinition databaseDefinition, Properties properties) throws SQLException {
 		this.databaseDefinition = databaseDefinition;