description: values is an array of string values. If the
                              operator is In or NotIn, the values array must be non-empty.
                              If the operator is Exists or DoesNotExist, the values
                              array must be empty. This array is replaced during a
                              strategic merge patch.
                            items:

rules:
  braces: disable
  brackets: disable
  colons: enable
  commas: disable
  comments: disable
  comments-indentation: disable
  document-end: disable
  document-start: disable
  empty-lines: disable
  empty-values: disable
  hyphens: enable
  indentation: disable
  key-duplicates: enable
  key-ordering: disable
  line-length: disable
  new-line-at-end-of-file: disable
  new-lines: enable

        public TextNormalizeContext(final Reader reader) {
            this.reader = reader;
        }

        public String execute() {
            if (reader == null) {
                return StringUtil.EMPTY;
            }
            final StringBuilder buf = new StringBuilder(initialCapacity);
            boolean isSpace = false;
            int alphanumSize = 0;
            int symbolSize = 0;
            int c;

    assertNull(Optional.toJavaUtil(null));
    assertEquals(java.util.Optional.empty(), Optional.toJavaUtil(Optional.absent()));
    assertEquals(java.util.Optional.of("abc"), Optional.toJavaUtil(Optional.of("abc")));
  }

  public void testToJavaUtil_instance() {
    assertEquals(java.util.Optional.empty(), Optional.absent().toJavaUtil());
    assertEquals(java.util.Optional.of("abc"), Optional.of("abc").toJavaUtil());

    assertEquals(empty, Sets.subSet(set, Range.open(20, 30)));

    assertEquals(set, Sets.subSet(set, Range.openClosed(0, 12)));
    assertEquals(ImmutableSortedSet.of(2, 4), Sets.subSet(set, Range.openClosed(0, 4)));
    assertEquals(ImmutableSortedSet.of(4, 6), Sets.subSet(set, Range.openClosed(2, 6)));
    assertEquals(ImmutableSortedSet.of(4, 6), Sets.subSet(set, Range.openClosed(3, 7)));

                               aria-controls="listSearchForm"><i class="fas fa-search" aria-hidden="true"></i></a>
                            <div class="collapse <c:if test="${!empty name || !empty paths || !empty description}">show</c:if>" id="listSearchForm">
                                <la:form action="/admin/fileconfig/">
                                    <div class="form-group row">

	targets := make([]Target, 0, len(list.targets))
	for _, tgt := range list.targets {
		targets = append(targets, tgt)
	}

	return targets
}

// Empty returns true if targetList is empty.
func (list *TargetList) Empty() bool {
	list.RLock()
	defer list.RUnlock()

	return len(list.targets) == 0
}

// List - returns available target IDs.

     *
     * @param pom The POM's string representation, may be empty or {@code null}.
     */
    public StringModelSource(CharSequence pom) {
        this(pom, null);
    }

    /**
     * Creates a new model source backed by the specified string.
     *
     * @param pom The POM's string representation, may be empty or {@code null}.
     * @param location The location to report for this use, may be {@code null}.

        return StringUtil.isBlank(s) ? StringUtil.EMPTY : "/" + s;
    }

    public String getVirtualHostKey() {
        return LaRequestUtil.getOptionalRequest().map(req -> (String) req.getAttribute(FessConfig.VIRTUAL_HOST_VALUE)).orElseGet(() -> {
            final String value = processVirtualHost(s -> s, StringUtil.EMPTY);

import java.util.Collection;
import java.util.Map.Entry;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import junit.framework.TestCase;

/**
 * {@link LoadingCache} tests that deal with empty caches.
 *
 * @author mike nonemacher
 */

public class EmptyCachesTest extends TestCase {

  public void testEmpty() {
    for (LoadingCache<Object, Object> cache : caches()) {
      checkEmpty(cache);