@Override
    public int count(@Nullable Object element) {
      return standardCount(element);
    }

    @Override
    public boolean equals(@Nullable Object object) {
      return standardEquals(object);
    }

    @Override
    public int hashCode() {
      return standardHashCode();
    }

    @Override
    public boolean add(E element) {
      return standardAdd(element);
    }

        indexToRemove = currentIndex;
        E result = element(currentIndex);
        currentIndex = getSuccessor(currentIndex);
        return result;
      }

      @Override
      public void remove() {
        checkForConcurrentModification();
        checkRemove(indexToRemove >= 0);
        incrementExpectedModCount();
        CompactHashSet.this.remove(element(indexToRemove));

 [[1]] in a "groupId" directory: a "groupId" directory may contain Maven plugins artifacts, which are described in metadata's <<<plugins>>> element,

 [[2]] in a "groupId/artifactId" directory: metadata describes <<<groupId>>>, <<<artifactId>>> and <<<versioning>>> element that
       gives data about available versions (<<<latest>>>, <<<release>>>, <<<versions>>> list and <<<lastUpdated>>>),

    }

    @Override
    public List<@Nullable V> combine(List<@Nullable Present<V>> values) {
      List<@Nullable V> result = newArrayListWithCapacity(values.size());
      for (Present<V> element : values) {
        result.add(element != null ? element.value : null);
      }
      return unmodifiableList(result);
    }
  }

  /** The result of a successful {@code Future}. */

   $body.parent().parent().addClass('d-none')\n      }\n    })\n  }\n\n  toggleRow() {\n    let $element = this._element\n\n    if ($element[0].nodeName !== 'TR') {\n      $element = $element.parent()\n      if ($element[0].nodeName !== 'TR') {\n        $element = $element.parent()\n      }\n    }\n\n    const time = 500\n    const $type = $element.attr(SELECTOR_ARIA_ATTR)\n    const $body = $element.next(SELECTOR_EXPANDABLE_BODY).children().first().children()\n\n    $body.stop()\n    if ($type ===...

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package gradlebuild.docs.dsl.docbook;

import org.w3c.dom.Element;

import java.util.List;

public interface DocComment {
    List<Element> getDocbook();

 */
package org.codelibs.core.xml;

import javax.xml.parsers.DocumentBuilder;

import junit.framework.TestCase;

import org.codelibs.core.io.ResourceUtil;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

/**
 * @author higa
 *
 */
public class DomUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testGetContentsAsStream() throws Exception {

    switch (elements.length) {
      case 0:
        return emptySet(comparator);
      default:
        SortedSet<E> delegate = new TreeSet<E>(comparator);
        for (E element : elements) {
          checkNotNull(element);
          delegate.add(element);
        }
        return new RegularImmutableSortedSet<E>(delegate, false);
    }
  }

  // Unsafe, see ImmutableSortedSetFauxverideShim.

   * support concurrent multisets whose content may change while the method is running.
   *
   * <p>The serialized output consists of the number of distinct elements, the first element, its
   * count, the second element, its count, and so on.
   */
  static <E extends @Nullable Object> void writeMultiset(
      Multiset<E> multiset, ObjectOutputStream stream) throws IOException {

import org.junit.jupiter.params.provider.ValueSource;

/**
 * Test class for StringUtil utility methods
 */
class StringUtilTest {

    @Test
    @DisplayName("Should join single element without delimiter")
    void testJoinSingleElement() {
        String result = StringUtil.join(",", "hello");
        assertEquals("hello", result);
    }

    @Test