When calling setObject(new Date(), Types.TimeStamp) from a Preparedstatement the field is filled with a zero date String.

import org.junit.After;

import org.junit.Before;

import org.junit.Test;

import java.sql.*;

import java.util.Calendar;

import java.util.Date;

import java.util.TimeZone;

import static org.junit.Assert.assertEquals;

public class MariaDBDateTest {

    private static final String url =

            "jdbc:mysql://" +

                    // "jdbc:mariadb://" +

                    System.getProperty("hostname", "localhost") + ":" +

                    System.getProperty("port", "3306") + "/" +

                    System.getProperty("dbname", "test");

    private static final String user = "root";

    private static final String passwd = "";

    private Connection con;

    private Date date;

    @Before

    public void setUp() throws Exception {

        // Load in the DriverManager Class

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

//        Class.forName("com.mysql.jdbc.Driver");

        con = DriverManager.getConnection(url, user, passwd);

        date = Calendar.getInstance(TimeZone.getTimeZone()).getTime();

//                new Date();

//                Calendar.getInstance().getTime();

        createDB();

        System.out.println("Setup Complete.");

        System.out.println("**********");

    }

    @After

    public void tearDown() throws Exception {

        con.close();

        System.out.println("Teardown Complete.");

        System.out.println("**********");

    }

    private void createDB() throws Exception {

        con.setAutoCommit(true);

        PreparedStatement pstmt_drop = con.prepareStatement("DROP TABLE IF EXISTS test_table");

        try {

            pstmt_drop.executeUpdate();

        } catch (Throwable t) {

        }

        PreparedStatement pstmt_create = con.prepareStatement("CREATE TABLE test_table " +

                "(" +

                "id INT PRIMARY KEY, " +

                "someDate1 DATETIME(3)," +

                "someDate2 DATETIME(3)" +

                ")");

        pstmt_create.executeUpdate();

    }

    @Test

    public void testDateTime() throws Exception {

        PreparedStatement pstmt_add = con.prepareStatement("INSERT INTO test_table (id, someDate1, someDate2) VALUES (?, ?, ?)");

        pstmt_add.setInt(1, 1);

        pstmt_add.setObject(2, new Timestamp(date.getTime()), Types.TIMESTAMP);

        pstmt_add.setObject(3, date, Types.TIMESTAMP);

        pstmt_add.executeUpdate();

        String sql = "SELECT ID, someDate1, someDate2 FROM test_table t0 WHERE ID = ?";

        PreparedStatement pstmt = con.prepareStatement(sql);

        pstmt.setInt(1, 1);

        ResultSet rs = pstmt.executeQuery();

        while (rs.next()) {

            assertEquals(1, rs.getInt(1));

            assertEquals(date, rs.getObject(2));

//            assertEquals(date,  rs.getObject(3));

        }

    }

}