g := errgroup.WithNErrs(len(users))

	for index := range users {
		g.Go(func() error {
			userName := path.Dir(users[index])
			user, err := iamOS.loadUserIdentity(ctx, userName, userType)
			if err != nil && !errors.Is(err, errNoSuchUser) {
				return fmt.Errorf("unable to load the user `%s`: %w", userName, err)
			}
			userIdentities[index] = user
			return nil
		}, index)
	}

	err := errors.Join(g.Wait()...)

package okhttp3.internal

import okhttp3.Headers

internal fun Headers.commonName(index: Int): String = namesAndValues.getOrNull(index * 2) ?: throw IndexOutOfBoundsException("name[$index]")

internal fun Headers.commonValue(index: Int): String =
  namesAndValues.getOrNull(index * 2 + 1) ?: throw IndexOutOfBoundsException("value[$index]")

internal fun Headers.commonValues(name: String): List<String> {

import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotNull;

import java.util.Iterator;

import org.codelibs.core.exception.ClUnsupportedOperationException;

/**
 * {@link Iterator} with index. The index starts from {@literal 0}.
 *
 * <p>
 * Usage example:
 * </p>
 *
 * <pre>
 * import static org.codelibs.core.collection.IndexedIterator.*;
 *
 * List&lt;String&gt; list = ...;

                int index = auth.indexOf(':');
                String user = index != -1 ? auth.substring(0, index) : auth;
                final String password = index != -1 ? auth.substring(index + 1) : "";
                index = user.indexOf('\\');
                if (index == -1) {
                    index = user.indexOf('/');
                }

        }
      }
      return -1;
    }

    @Override
    public Character set(int index, Character element) {
      checkElementIndex(index, size());
      char oldValue = array[start + index];
      // checkNotNull for GWT (do not optimize)
      array[start + index] = checkNotNull(element);
      return oldValue;
    }

    @Override

          return i - start;
        }
      }
      return -1;
    }

    @Override
    public Short set(int index, Short element) {
      checkElementIndex(index, size());
      short oldValue = array[start + index];
      // checkNotNull for GWT (do not optimize)
      array[start + index] = checkNotNull(element);
      return oldValue;
    }

    @Override

          return i - start;
        }
      }
      return -1;
    }

    @Override
    public Short set(int index, Short element) {
      checkElementIndex(index, size());
      short oldValue = array[start + index];
      // checkNotNull for GWT (do not optimize)
      array[start + index] = checkNotNull(element);
      return oldValue;
    }

    @Override

            return len;
          }

          @Override
          public Range<K> get(int index) {
            checkElementIndex(index, len);
            if (index == 0 || index == len - 1) {
              return ranges.get(index + off).intersection(range);
            } else {
              return ranges.get(index + off);
            }
          }

          @Override
          boolean isPartialView() {

    final F fromSpliterator;
    long index;

    MapWithIndexSpliterator(F fromSpliterator, long index) {
      this.fromSpliterator = fromSpliterator;
      this.index = index;
    }

    abstract S createSplit(F from, long i);

    @Override
    public @Nullable S trySplit() {
      Spliterator<?> splitOrNull = fromSpliterator.trySplit();
      if (splitOrNull == null) {
        return null;

    return delegateList;
  }

  @SuppressWarnings("unchecked") // safe covariant cast!
  @Override
  public UnmodifiableListIterator<E> listIterator(int index) {
    return (UnmodifiableListIterator<E>) delegateList.listIterator(index);
  }

  @GwtIncompatible // not present in emulated superclass
  @Override
  public void forEach(Consumer<? super E> action) {
    delegateList.forEach(action);
  }