@Override
    public void publishApi(Api api, IAsyncResultHandler<Void> handler) {
        objectMap.put(getApiIndex(api), api, handleResultVoid(handler));
    }
@author Marc Savy {@literal <marc@rhymewithgravy.com>}
gateway/engine/vertx-shareddata/src/main/java/io/apiman/gateway/engine/vertx/shareddata/SharedGlobalDataRegistry.java