The username and password parameters to `Credentials.basic()` are now non-null strings. In OkHttp
3.x, null would yield a username or password of "null".

#### HttpUrl.queryParameterValues()

The return type of `HttpUrl.queryParameterValues()` is `List<String?>`. Lists that may contain null
are uncommon and Kotlin callers may have incorrectly assigned the result to `List<String>`.


Code Cleanup
------------

### `UploadFile` { #uploadfile }

`UploadFile` 具有以下屬性：

* `filename`：一個 `str`，為上傳的原始檔名（例如 `myimage.jpg`）。
* `content_type`：一個 `str`，為內容類型（MIME type / media type）（例如 `image/jpeg`）。

    // ==================== Tests for getExtensionFromMimeType method ====================

    // Tests for GIF MIME type
    @Test
    public void test_getExtensionFromMimeType_gif() {
        assertEquals(".gif", generator.getExtensionFromMimeType("image/gif"));
    }

    // Tests for TIFF MIME type
    @Test
    public void test_getExtensionFromMimeType_tiff() {

    private SettingsDecrypter settingsDecrypter;

    @Override
    public Artifact createArtifact(String groupId, String artifactId, String version, String scope, String type) {
        return artifactFactory.createArtifact(groupId, artifactId, version, scope, type);
    }

    @Override
    public Artifact createArtifact(String groupId, String artifactId, String version, String packaging) {

				t.Errorf("generated SQL is not equal, expects %v, but got %v", result.Result, stmt.SQL.String())
			}
		})
	}
}

func TestNamedExpr(t *testing.T) {
	type Base struct {
		Name2 string
	}

	type NamedArgument struct {
		Name1 string
		Base
	}

	results := []struct {
		SQL          string
		Result       string
		Vars         []interface{}
		ExpectedVars []interface{}
	}{{

	EnvMQTTQueueDir          = "MINIO_NOTIFY_MQTT_QUEUE_DIR"
	EnvMQTTQueueLimit        = "MINIO_NOTIFY_MQTT_QUEUE_LIMIT"
)

// MQTTArgs - MQTT target arguments.
type MQTTArgs struct {
	Enable               bool           `json:"enable"`
	Broker               xnet.URL       `json:"broker"`
	Topic                string         `json:"topic"`
	QoS                  byte           `json:"qos"`

        return null;
    }

    // ===================================================================================
    //                                                                           Type Name
    //                                                                           =========
    @Override
    public String getEntityTypeName() {
        return "org.codelibs.fess.opensearch.config.exentity.BadWord";

        return null;
    }

    // ===================================================================================
    //                                                                           Type Name
    //                                                                           =========
    @Override
    public String getEntityTypeName() {

        for (socket in openSockets) {
          socket.closeQuietly()
        }
        Thread.currentThread().name = "SocksProxy"
      }
    }
  }

  fun proxy(): Proxy =
    Proxy(
      Proxy.Type.SOCKS,
      InetSocketAddress.createUnresolved("localhost", serverSocket!!.localPort),
    )

  fun connectionCount(): Int = connectionCount.get()

  fun shutdown() {
    serverSocket!!.close()

 * <p>The time complexity of all collection-returning accessors is O(1), since views are returned.
 *
 * @author James Sexton
 * @author Joshua O'Madadhain
 * @author Omar Darwish
 * @param <N> Node parameter type
 * @param <E> Edge parameter type
 */
class StandardNetwork<N, E> extends AbstractNetwork<N, E> {
  private final boolean isDirected;
  private final boolean allowsParallelEdges;
  private final boolean allowsSelfLoops;