[#CONJ-261] NullPointerException when closing a streaming statement twice

The problem can be reproduced using this simple example, replacing the obvious bits with server location, port, etc.

package com.dms.mariadb;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.Statement;

public class MariaDbNPETest

    public static void main(final String[] args)

        try (final Connection dbConnection = DriverManager.getConnection("jdbc:mariadb://<machine>:<port>/<dbName>", "<username>", "<password>"))

            Class.forName("org.mariadb.jdbc.Driver");

            final Statement statement = dbConnection.createStatement();

            // Make sure it is a streaming statement:

            statement.setFetchSize(Integer.MIN_VALUE);

            for (int count = 1; count <= 10; count++)

try

                    System.out.println("Closing count: " + count);

                    statement.close();

                catch (final Exception ex)

                    ex.printStackTrace();

                    break;

        catch (final Exception ex)

            ex.printStackTrace();

[CONJ-261] NullPointerException when closing a streaming statement twice Created: 2016-02-29 Updated: 2016-04-28 Resolved: 2016-04-28
Status:	Closed
Project:	MariaDB Connector/J
Component/s:	Other
Affects Version/s:	1.3.4, 1.3.5
Fix Version/s:	1.3.6