fix query

build.gradle

@@ -5,7 +5,7 @@ plugins {
 }
 
 group 'ru.di9'
-version '1.9.1'
+version '1.9.2'
 
 repositories {
     mavenCentral()

src/main/java/ru/di9/jdbc/JdbcTemplateImpl.java

@@ -1,6 +1,7 @@
 package ru.di9.jdbc;
 
 import org.intellij.lang.annotations.Language;
+import org.jetbrains.annotations.Nullable;
 
 import javax.sql.DataSource;
 import java.sql.*;
@@ -50,13 +51,14 @@ public class JdbcTemplateImpl implements JdbcTemplate {
     }
 
     @Override
+    @Nullable
     public <T> T query(@Language("GenericSQL") String sql, PreparedStatementProcessor psp,
                        ResultSetExtractor<T> rse) throws DataAccessException {
         try (Connection connection = dataSource.getConnection();
              PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
             psp.process(preparedStatement);
             try (ResultSet resultSet = preparedStatement.executeQuery()) {
-                return resultSet.next() ? rse.extractData(resultSet) : null;
+                return rse.extractData(resultSet);
             }
         } catch (SQLException e) {
             throw throwDataAccessException(sql, e);