H2 data added wont refresh until disconnect

This is my code:

package logic;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class Database {
    public static void main(String[] args) throws SQLException, ClassNotFoundException {
        Connection conn = null;
        Statement stmt = null;

        Class.forName("org.h2.Driver");
        conn = DriverManager.getConnection("jdbc:h2:./Database/Data", "Gustavo", "123456");
        stmt = conn.createStatement();

        stmt.execute("CREATE TABLE TEST(ID INT PRIMARY KEY,NAME VARCHAR(255));");
        stmt.execute("INSERT INTO TEST VALUES(1, 'John');");
        ResultSet rs = stmt.executeQuery("select * from test");
        
        while (rs.next()) {
            System.out.println("id " + rs.getInt("id") + " name " + rs.getString("name"));
        }
        conn.close();
    }
}

I can add the data and display it and if I run the code again (commenting the CREATE TABLE and INSERT INTO) it displays the data.

The problem is that when I go to the H2 console, it doesn't show anything unless I disconnect and reconnect. After I do that, it shows any changes made or data added to the database.

Is there a problem or that's how the H2 console works?

(I'm on Ubuntu 20.04, using vs code and gradle)

Edit: I solved it

The problem was in the code I was using it in embebed mode and it only allows one connection at a time. Once I changed it to server mode using:

String url = System.getProperty("user.dir") + "/Database/Data";
conn = DriverManager.getConnection("jdbc:h2:tcp://localhost/" + url, "Gustavo", "123456");