import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Utilities for treating interruptible operations as uninterruptible. In all cases, if a thread is
 * interrupted during such a call, the call continues to block until the result is available or the
 * timeout elapses, and only then re-interrupts the thread.
 *
 * @author Anthony Zana
 * @since 10.0
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault

			if ldap.IsErrorWithCode(err, 32) {
				ndn, err := ldap.ParseDN(dn)
				if err != nil {
					return nil, err
				}
				nonExistentUsers = append(nonExistentUsers, ndn.String())
				continue
			}
			return nil, err
		}
		if len(searchResult.Entries) == 0 {
			// DN was not found - this means this user account is
			// expired.
			ndn, err := ldap.ParseDN(dn)
			if err != nil {

		// TODO: implement
		fallthrough

	default:
		return nil, errNotImplemented
	}
}

func coalesce(args []*Value) (res *Value, err error) {
	for _, arg := range args {
		if arg.IsNull() {
			continue
		}
		return arg, nil
	}
	return FromNull(), nil
}

func nullif(v1, v2 *Value) (res *Value, err error) {
	// Handle Null cases
	if v1.IsNull() || v2.IsNull() {
		return v1, nil
	}

Recipient agrees to cease use and distribution of the Program as soon as reasonably
practicable. However, Recipient's obligations under this Agreement and any
licenses granted by Recipient relating to the Program shall continue and survive.

Everyone is permitted to copy and distribute copies of this Agreement, but
in order to avoid inconsistency the Agreement is copyrighted and may only

		}
		conn, err := z.accept()
		if err != nil {
			if errors.Is(err, net.ErrClosed) {
				log.Debug("listener closed - returning")
				return
			}

			log.Errorf("failed to accept conn: %v", err)
			continue
		}
		log.Debug("connection accepted")
		go func() {
			log.Debug("handling conn")
			if err := z.handleConn(ctx, conn); err != nil {
				log.Errorf("failed to handle conn: %v", err)
			}
		}()
	}

     */
    private fun Headers.varyFields(): Set<String> {
      var result: MutableSet<String>? = null
      for (i in 0 until size) {
        if (!"Vary".equals(name(i), ignoreCase = true)) {
          continue
        }

        val value = value(i)
        if (result == null) {
          result = TreeSet(String.CASE_INSENSITIVE_ORDER)
        }
        for (varyField in value.split(',')) {

        for (final DateFormat format : iterable(new DateFormatIterator(locale), new PlainDateFormatIterator(str, locale))) {
            if (format == null) {
                continue;
            }
            final Date date = toDate(str, format);
            if (date != null) {
                return date;
            }
        }
        return null;
    }

    /**

// immediately stops the scanning.
//
// Otherwise, the [Scanner] advances the input. If the token is not nil,
// the [Scanner] returns it to the user. If the token is nil, the
// Scanner reads more data and continues scanning; if there is no more
// data--if atEOF was true--the [Scanner] returns. If the data does not
// yet hold a complete token, for instance if it has no newline while

// the usual way, and then F returns to its caller. To the caller G, the
// invocation of F then behaves like a call to panic, terminating G's
// execution and running any deferred functions. This continues until all
// functions in the executing goroutine have stopped, in reverse order. At
// that point, the program is terminated with a non-zero exit code. This

 * autoboxing and varargs array creation may happen as well, even when the verification succeeds and
 * the message ends up unneeded. Performance-sensitive verification checks should continue to use
 * usual form:
 *
 * <pre>{@code
 * Bill bill = remoteService.getLastUnpaidBill();
 * if (bill.status() != Status.UNPAID) {
 *   throw new VerifyException("Unexpected bill status: " + bill.status());
 * }