public int compareTo(XField other) {
public int compareTo(PackageMember other) {
	public int compareTo(XField other) {		// This may be compared to any kind of XField object.		// If the other object is a different kind of field,		// just compare class names.		if (this.getClass() != other.getClass())			return this.getClass().getName().compareTo(other.getClass().getName());		int cmp;		cmp = className.compareTo(other.getClassName());		if (cmp != 0)			return cmp;		cmp = fieldName.compareTo(other.getName());		if (cmp != 0)			return cmp;		return fieldSig.compareTo(other.getSignature());	}