* javadoc for details.
 */
@GwtCompatible
abstract class CommonPattern {
  public abstract CommonMatcher matcher(CharSequence t);

  public abstract String pattern();

  public abstract int flags();

  // Re-declare this as abstract to force subclasses to override.
  @Override
  public abstract String toString();

  public static CommonPattern compile(String pattern) {

     */
    public MsrpcGetMembersInAlias(final SamrAliasHandle aliasHandle, final lsarpc.LsarSidArray sids) {
        super(aliasHandle, sids);
        this.sids = sids;
        this.ptype = 0;
        this.flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

     */
    public MsrpcSamrConnect2(final String server, final int access, final SamrPolicyHandle policyHandle) {
        super(server, access, policyHandle);
        this.ptype = 0;
        this.flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

     */
    public MsrpcQueryInformationPolicy(final LsaPolicyHandle policyHandle, final short level, final NdrObject info) {
        super(policyHandle, level, info);
        ptype = 0;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

     */
    public MsrpcSamrConnect4(final String server, final int access, final SamrPolicyHandle policyHandle) {
        super(server, 2, access, policyHandle);
        ptype = 0;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

     */
    public MsrpcSamrOpenAlias(final SamrDomainHandle handle, final int access, final int rid, final SamrAliasHandle aliasHandle) {
        super(handle, access, rid, aliasHandle);
        ptype = 0;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

     *
     * @param handle the policy handle to close
     */
    public MsrpcLsarClose(final policy_handle handle) {
        super(handle);
        this.ptype = 0;
        this.flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

     *
     * @param policyHandle the policy handle to close
     */
    public MsrpcSamrCloseHandle(final rpc.policy_handle policyHandle) {
        super(policyHandle);
        ptype = 0;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

        // Verify search attributes (masked with 0x37)
        assertEquals(0x37, SMBUtil.readInt2(buffer, 0));

        // Verify max items
        assertEquals(100, SMBUtil.readInt2(buffer, 2));

        // Verify flags (should be 0x00)
        assertEquals(0x00, SMBUtil.readInt2(buffer, 4));

        // Verify information level (SMB_FILE_BOTH_DIRECTORY_INFO)

     * @param tc the CIFS context to use
     * @param flags resolution flags
     * @return the members of the group
     * @throws IOException if there is an error retrieving group members
     */
    public jcifs.SID[] getGroupMemberSids(final String authorityServerName, final CIFSContext tc, final int flags) throws IOException {
        if (this.type != SID_TYPE_DOM_GRP && this.type != SID_TYPE_ALIAS) {