When you create a map, you must register it with the map manager. Next, you must display it in the UI.
For Lightspeed maps, the easiest way to make sure that you perform all necessary steps is to use the API utility methods.
TLcyLspMapAddOn mapAddOn = aLucyEnv.retrieveAddOnByClass(TLcyLspMapAddOn.class);
TLcyLspMapBackEnd mapBackEnd = mapAddOn.getMapBackEnd();
//This method creates the map, but also ensures that it is added to the UI, registered to the map manager, and so on.
ILcyLspMapComponent mapComponent = mapBackEnd.createMapComponent();