Given

    private int x;
    private URL stuff;
    private String whatever;

rather than generating

    @Override
    public int hashCode() {
        int hash = 3;
        hash = 17 * hash + this.x;
        hash = 17 * hash + Objects.hashCode(this.stuff);
        hash = 17 * hash + Objects.hashCode(this.whatever);
        return hash;
    }

I would expect the simpler and more readable

    @Override
    public int hashCode() {
        return Objects.hash(x, stuff, whatever);
    }