@Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((compareTo == null) ? 0 : compareTo.hashCode()); return result; }
@Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((compareTo == null) ? 0 : compareTo.hashCode()); return result; }