Method queue

src/main/java/fielded/webserver/Server.java:303–326

(Callable<T> c)

            CompletableFuture<T> f = new CompletableFuture<>();
            try {
                T t = c.call();
                f.complete(t);
            } catch (Throwable tt) {
                f.completeExceptionally(tt);
            }
            return f;
        } else {
            CompletableFuture<T> f = new CompletableFuture<>();
            this.queue.add(() -> {
                try {
                    T t = c.call();
                    f.complete(t);
                } catch (Throwable tt) {
                    tt.printStackTrace();
                    f.completeExceptionally(tt);
                }
            });
            return f;
        }
    }

    public void queue(Runnable c) {
        this.queue.add(c);
    }


    public void broadcast(String message) {