Is there a workaround for not being able to access static methods in an enum inside its constructor?

I have an enum in which the elements all have unique IDs. In my constructor I throw an exception if there already exists an element with the given ID, like this:

public enum Number {

    ONE(1),
    TWO(2),
    THREE(3);

    private final int id;

    private Number(int id) {
        if (Number.isRegistered(id)) throw new IllegalArgumentException(id + " is already registered.");
        this.id = id;
    }

    public static Number getNumberFromID(int id) {
        for (Number n : Number.values()) {
            if (n.getID() == id) return n;
        }

        throw new IllegalArgumentException("There is no number with the ID " + id);
    }

    public static boolean isRegistered(int id) {
        try {getNumberFromID(id);}
        catch (IllegalArgumentException e) {return false;}
        return true;
    }

    public int getID() {
        return this.id;
    }

}

And in another class I try to reference this:

public class Main {
    public static void main(String[] args) {
        Number one = Number.getNumberFromID(1);
    }
}

Which gives the following error:

Exception in thread "main" java.lang.ExceptionInInitializerError
	at Main.main(Main.java:8)
Caused by: java.lang.NullPointerException
	at Number.values(Number.java:1)
	at Number.getNumberFromID(Number.java:15)
	at Number.isRegisteredNumber(Number.java:23)
	at Number.<init>(Number.java:10)
	at Number.<clinit>(Number.java:3)
	... 1 more

This isn't my exact code, which is why it seems a bit pointless, but it shows what I'm trying to do. From what I've found it seems that Java doesn't let you access static methods in an enum like this because it is still being constructed. Does anyone know a better way to do this? Any help is appreciated.

Add a static initializer to your class:

public enum Number {

    ONE(1),
    TWO(2),
    THREE(3);

    static {
      Set<Integer> seen = new HashSet<>();
      for (Number n : values()) {
        if (!seen.add(n.id)) {
          throw new IllegalArgumentException(...); 
        }
      }
    }

    private final int id;

    private Number(int id) { this.id = id }
}