@Override public void setIgnoreCase(boolean set) {
        if (set != this.ignoreCase) {
            this.ignoreCase = set;
            propertiesHandler.firePropertyChange(IGNORE_CASE_PROPERTY, !set,
                set);
            setComparator(String.class, getStringComparator(set));
        }
    }
@Override public void setIgnoreCase(boolean set)