Map copy = new HashMap(_headers); for (int i = 0; i < names.length; i++) { String name = names[i]; copy.remove(name); } return getHeaders(names, copy);
return getHeaders(names, false);
    public Enumeration getNonMatchingHeaders(String[] names) {        Map copy = new HashMap(_headers);        for (int i = 0; i < names.length; i++) {            String name = names[i];            copy.remove(name);        }        return getHeaders(names, copy);    }