}
        if ((obj == null) || (getClass() != obj.getClass())) {
            return false;
        }
        final CharMappingItem other = (CharMappingItem) obj;
        sort();
        other.sort();
        if (!Arrays.equals(inputs, other.inputs) || !output.equals(other.getOutput())) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {