case nil:
		expAt, err = 0, nil
	default:
		expAt, err = 0, ErrInvalidDuration
	}
	if expAt < 0 {
		return 0, ErrInvalidDuration
	}
	return expAt, err
}

// GenerateCredentials - creates randomly generated credentials of maximum
// allowed length.
func GenerateCredentials() (accessKey, secretKey string, err error) {
	accessKey, err = GenerateAccessKey(accessKeyMaxLen, rand.Reader)
	if err != nil {

    assertThat(source1.readUtf8(10)).isEqualTo("abcdefghij")
    assertThat(source1.exhausted()).isTrue()
    source1.close()
    assertThat(relay1.isClosed).isTrue()

    // Since relay1 is closed, new sources cannot be created.
    assertThat(relay1.newSource()).isNull()
    val relay2 = read(file)
    assertThat(relay2.metadata()).isEqualTo(metadata)
    val source2 = relay2.newSource()!!.buffer()

        "type": "minhash",
        "bit_string": true,
        "minhash_analyzer": "minhash_analyzer"
      },
      "content_length": {
        "type": "long"
      },
      "created": {
        "type": "date",
        "format": "date_optional_time"
      },
      "timestamp": {
        "type": "date",
        "format": "date_optional_time"
      },
      "expires": {

		sort 연산자의 사용 방법은 sort:<field>.<order>입니다.
		<order> 는 asc 또는 desc 오름차순 · 내림차순을 지정할 수 있습니다.
		예를 들어, Fess를 포함한 문서 크기의 내림차순으로 정렬하려면 다음과 같이 입력합니다.
		<pre>Fess sort:content_length.desc</pre>
		기본으로 사용 가능한 필드는 created, content_length 및 last_modified됩니다.
		설정에서 지정하는 필드는 변경할 수 있습니다.
	</dd>
	<dt>AND검색</dt>
	<dd>
		AND 연산자는 선택적 연결 연산자입니다.
		AND 연산자는 지정한 검색어를 모두 포함한 문서와 일치합니다.
		예를 들어, Fess과 CodeLibs를 포함하는 문서 검색하려면 다음과 같이 입력합니다.

 * @author Chris Povirk
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class IteratorTester<E extends @Nullable Object>
    extends AbstractIteratorTester<E, Iterator<E>> {
  /**
   * Creates an IteratorTester.
   *
   * @param steps how many operations to test for each tested pair of iterators
   * @param features the features supported by the iterator
   */
  protected IteratorTester(
      int steps,

 * and extension, and it is stored in a repository for dependency management and build purposes.
 *
 * <p>Each {@code Artifact} instance is basically an exact pointer to a file in a Maven repository.
 * {@code Artifact} instances are created when <dfn>resolving</dfn> {@link ArtifactCoordinates} instances.
 * Resolving is the process that selects a {@linkplain #getVersion() particular version}

// JSON stored in RawExtension, turning it into the correct object type, and storing it
// in the Object. (TODO: In the case where the object is of an unknown type, a
// runtime.Unknown object will be created and stored.)
//
// +k8s:deepcopy-gen=true
// +protobuf=true
// +k8s:openapi-gen=true
message RawExtension {
  // Raw is the underlying serialization of this object.
  //

/**
 * Wraps an ordinary {@link URL} as a source.
 *
 */
public class UrlSource implements Source {

    private final URL url;

    private final int hashCode;

    /**
     * Creates a new source backed by the specified URL.
     *
     * @param url The file, must not be {@code null}.
     */
    public UrlSource(URL url) {
        this.url = Objects.requireNonNull(url, "url cannot be null");

 *
 * @author Colin Decker
 */
public class AbstractListeningExecutorServiceTest extends TestCase {

  public void testSubmit() throws Exception {
    /*
     * Mostly just tests that TrustedListenableFutureTask are created and run; tests for
     * TrustedListenableFutureTask should ensure that listeners are called correctly.
     */

    TestListeningExecutorService e = new TestListeningExecutorService();

import org.apache.maven.api.annotations.Nullable;

/**
 * Version constraint for dependency.
 * Constraint is either a range ("[1,2)") or recommended version ("1.0").
 *
 * {@code VersionConstraint} objects are created using the
 * {@linkplain org.apache.maven.api.services.VersionParser} service.
 *
 * @see Version
 * @see VersionRange
 * @see org.apache.maven.api.services.VersionParser#parseVersionConstraint(String)