From 8512b8ffe4455c3a51c14b3ace1ba421d46342ad Mon Sep 17 00:00:00 2001
From: lCarLyl <sujskskd@gmail.com>
Date: Sun, 25 Sep 2022 01:10:28 +0300
Subject: [PATCH] fix ResultSet not positioned properly, perhaps you need to
 call next.

---
 src/main/java/ru/di9/jdbc/JdbcTemplateImpl.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/ru/di9/jdbc/JdbcTemplateImpl.java b/src/main/java/ru/di9/jdbc/JdbcTemplateImpl.java
index 51becac..038e181 100644
--- a/src/main/java/ru/di9/jdbc/JdbcTemplateImpl.java
+++ b/src/main/java/ru/di9/jdbc/JdbcTemplateImpl.java
@@ -56,7 +56,7 @@ public class JdbcTemplateImpl implements JdbcTemplate {
              PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
             psp.process(preparedStatement);
             try (ResultSet resultSet = preparedStatement.executeQuery()) {
-                return rse.extractData(resultSet);
+                return resultSet.next() ? rse.extractData(resultSet) : null;
             }
         } catch (SQLException e) {
             throw throwDataAccessException(sql, e);