* Contains a group SID and associated attributes.
 */
public class PacGroup {

    private final SID id;
    private final int attributes;

    /**
     * Constructs a PAC group entry.
     * @param id the group's Security Identifier (SID)
     * @param attributes the group membership attributes
     */
    public PacGroup(final SID id, final int attributes) {
        this.id = id;

            // Groups data
            PacGroup[] groups = {};
            if (groupPointer != 0) {
                final int realGroupCount = pacStream.readInt();
                if (realGroupCount != groupCount) {
                    throw new PACDecodingException("Invalid number of groups in PAC expect" + groupCount + " have " + realGroupCount);
                }
                groups = new PacGroup[groupCount];