Optional<Object> getOptional() {
      if (extras.isEmpty()) {
        return Optional.ofNullable(element);
      } else {
        throw multiples(false);
      }
    }

    Object getElement() {
      if (element == null) {
        throw new NoSuchElementException();
      } else if (extras.isEmpty()) {
        return element;
      } else {
        throw multiples(false);

	CommentCharacter           string `xml:"Comments"`
	AllowQuotedRecordDelimiter bool   `xml:"AllowQuotedRecordDelimiter"`
	unmarshaled                bool
}

// IsEmpty - returns whether reader args is empty or not.
func (args *ReaderArgs) IsEmpty() bool {
	return !args.unmarshaled
}

// UnmarshalXML - decodes XML data.
func (args *ReaderArgs) UnmarshalXML(d *xml.Decoder, start xml.StartElement) (err error) {

	errInvalidTagValue = Errorf("The TagValue you have provided is invalid")
)

func (tag Tag) String() string {
	return tag.Key + "=" + tag.Value
}

// IsEmpty returns whether this tag is empty or not.
func (tag Tag) IsEmpty() bool {
	return tag.Key == ""
}

// Validate checks this tag.
func (tag Tag) Validate() error {
	if len(tag.Key) == 0 || utf8.RuneCountInString(tag.Key) > 128 {

            return Iterators.size(iterator());
          }

          @Override
          public boolean isEmpty() {
            return !iterator().hasNext();
          }
        };
      }

      Iterator<Entry<Range<K>, V>> entryIterator() {
        if (subRange.isEmpty()) {
          return emptyIterator();
        }
        Cut<K> cutToStart =
            MoreObjects.firstNonNull(

import android.os.StrictMode.ThreadPolicy
import android.os.strictmode.Violation
import androidx.test.filters.SdkSuppress
import assertk.assertThat
import assertk.assertions.hasSize
import assertk.assertions.isEmpty
import assertk.assertions.isEqualTo
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.internal.platform.Platform
import org.junit.jupiter.api.AfterEach

    }

    @Override
    public Server getServer() {
        return servers.isEmpty() ? null : servers.get(0);
    }

    @Override
    public List<Server> getServers() {
        return servers;
    }

    @Override
    public Proxy getProxy() {
        return proxies.isEmpty() ? null : proxies.get(0);
    }

    @Override
    public List<Proxy> getProxies() {

    @Override
    protected SortedSet<Integer> create(Integer[] elements) {
      SortedSet<Integer> set = nullCheckedTreeSet(elements);
      int tooHigh = set.isEmpty() ? 0 : set.last() + 1;
      set.add(tooHigh);
      return checkedCreate(set).headSet(tooHigh);
    }
  }

  public static class ContiguousSetTailsetGenerator extends AbstractContiguousSetGenerator {

                    if (arList.isEmpty()) {
                        emptyListCount++;
                    } else {
                        emptyListCount = 0; // reset
                    }
                    long hitCount = ((OpenSearchResultList<OpenSearchAccessResult>) arList).getTotalHits();
                    while (hitCount > 0) {
                        if (arList.isEmpty()) {

    return delegate.containsAll(targets);
  }

  @Override
  public int size() {
    return delegate.size();
  }

  @Override
  public boolean isEmpty() {
    return delegate.isEmpty();
  }

  @Override
  public Object[] toArray() {
    return delegate.toArray();
  }

  @Override
  public <T extends @Nullable Object> T[] toArray(T[] other) {

        return map.keySet().iterator();
    }

    @Override
    public int size() {
        return map.size();
    }

    @Override
    public boolean isEmpty() {
        return map.isEmpty();
    }

    @Override
    public boolean contains(final Object o) {
        return map.containsKey(o);
    }

    @Override
    public boolean add(final String o) {