gistfile1.txt

if(!optWorld.isPresent()){
                //world doesnt exist
                WorldArchetype settings = WorldArchetype.builder().enabled(true).loadsOnStartup(false).usesMapFeatures(false).generatorModifiers(WorldGeneratorModifiers.VOID).build(name, name);
                WorldProperties properties;
                try {
                    properties = Sponge.getServer().createWorldProperties(name, settings);
                    Sponge.getServer().saveWorldProperties(properties);
                    pistonSponge.getPistonLogger().debug("PistonWorld:"+name+" created!");
                    Sponge.getServer().loadWorld(name);
                    pistonSponge.getPistonLogger().debug("PistonWorld:"+name+" loaded!");
                    Optional<World> world = Sponge.getServer().getWorld(name);
                    if(world.isPresent() && !this.pistonWorlds.contains(world)){
                        this.pistonWorlds.add(world.get());
                    }
                    return world;
                } catch(IOException ex){
                    ex.printStackTrace();
                }
                return Optional.empty();
            }