H2Gis in cluster mode

build.gradle

plugins {
    id 'java'
}

sourceCompatibility = '11'

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.orbisgis:h2gis:1.5.0'
}

TestH2GisApplication.java

package com.github.jcfandino;

import org.h2.tools.CreateCluster;
import org.h2.tools.Server;
import org.h2gis.functions.factory.H2GISFunctions;

import java.nio.file.Files;
import java.nio.file.Path;
import java.sql.DriverManager;

public class TestH2GisApplication {

    public static void main(String[] args) {
        try {
            // Cleanup
            Files.deleteIfExists(Path.of("db1/db.mv.db"));
            Files.deleteIfExists(Path.of("db2/db.mv.db"));
            // Start server 1
            Server.createTcpServer("-baseDir", "db1", "-tcp", "-tcpAllowOthers", "-tcpPort", "9091").start();
            // Start server 2
            Server.createTcpServer("-baseDir", "db2", "-tcp", "-tcpAllowOthers", "-tcpPort", "9092").start();
            // Connect to server 1 and init database.
            try (var con = DriverManager.getConnection("jdbc:h2:tcp://localhost:9091/./db")) {
                H2GISFunctions.load(con); // <-- comment this line and the example works
                con.createStatement().execute("create table if not exists geometries(id serial, geo geometry);");
                con.createStatement().execute("insert into geometries(geo) values ('POINT(10 10)');");
                // Query server 1
                try (var results = con.createStatement().executeQuery("select * from geometries;")) {
                    results.next();
                    System.out.println("So far so good: " + results.getString(2));
                }
            }
            // Create cluster between both servers (this is where it fails)
            new CreateCluster().runTool(
                    "-urlSource", "jdbc:h2:tcp://localhost:9091/./db",
                    "-urlTarget", "jdbc:h2:tcp://localhost:9092/./db",
                    "-serverList", "localhost:9091,localhost:9092");
            // Query cluster
            try (var con = DriverManager.getConnection("jdbc:h2:tcp://localhost:9091,localhost:9092/./db");
                    var results = con.createStatement().executeQuery("select * from geometries;")) {
                results.next();
                System.out.println("My wish: " + results.getString(2));
            }
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(1);
        }
        System.exit(0);
    }

}