public static UnaryOperator<String> prefix(String prefix, UnaryOperator<String> cb) {
        return s -> {
            String v = null;
            if (s.startsWith(prefix)) {
                v = cb.apply(s.substring(prefix.length()));
            }
            return v;
        };
    }

    @SafeVarargs
    @Nonnull
    public static UnaryOperator<String> or(UnaryOperator<String>... callbacks) {
        return s -> {

                    public final String @Nullable [] finalField = null;
                    public String @Nullable [] foo(String bar) { return null; }
                }
            """,
            v2 = """
                public class Source {
                    public final String[] finalField = new String[] {"bar"};
                    public String[] foo(String bar) { return new String[] {bar}; }
                }

    @Override
    public void transferInitiated(TransferEvent event) {
        String darkOn = MessageUtils.isColorEnabled() ? ANSI_DARK_SET : "";
        String darkOff = MessageUtils.isColorEnabled() ? ANSI_DARK_RESET : "";

        String action = event.getRequestType() == TransferEvent.RequestType.PUT ? "Uploading" : "Downloading";
        String direction = event.getRequestType() == TransferEvent.RequestType.PUT ? "to" : "from";

	testCase := struct {
		bucketName    string
		objName       string
		inputData     []byte
		inputMeta     map[string]string
		inputDataSize int64
		// flag indicating whether the test should pass.
		shouldPass bool
		// expected error output.
		expectedMd5   string
		expectedError error
	}{
		bucket,
		object,
		[]byte("mnop"),
		map[string]string{"etag": "e132e96a5ddad6da8b07bba6f6131fef"},

	}
}

const (
	PrimaryKey   string = "~~~py~~~" // primary key
	CurrentTable string = "~~~ct~~~" // current table
	Associations string = "~~~as~~~" // associations
)

var (
	currentTable  = Table{Name: CurrentTable}
	PrimaryColumn = Column{Table: CurrentTable, Name: PrimaryKey}
)

// Column quote with name
type Column struct {
	Table string
	Name  string
	Alias string
	Raw   bool
}

    // groupId -> (artifactId -> (version -> project)))
    private Map<String, Map<String, Map<String, MavenProject>>> projects;
    private Map<String, Map<String, Map<String, MavenProject>>> allProjects;
    private Path projectLocalRepository;
    // projectId -> Deque<lifecycle>
    private final Map<String, Deque<String>> lifecycles = new ConcurrentHashMap<>();

    @Inject
    ReactorReader(MavenSession session) {

    String getGroupId();

    String getArtifactId();

    String getVersion();

    String getClassifier();

    String getExtension();

    String getType();

    String getCoordinatesString();

    @Nonnull
    static ArtifactCoordinatesFactoryRequest build(
            @Nonnull Session session, String groupId, String artifactId, String version, String extension) {

 */
public class InvalidProjectVersionException extends ProjectBuildingException {

    private final String locationInPom;

    private final String offendingVersion;

    public InvalidProjectVersionException(
            String projectId,
            String locationInPom,
            String offendingVersion,
            File pomFile,
            InvalidVersionSpecificationException cause) {

public interface ArtifactFactoryRequest extends Request<Session> {

    String getGroupId();

    String getArtifactId();

    String getVersion();

    String getClassifier();

    String getExtension();

    String getType();

    static ArtifactFactoryRequest build(
            Session session, String groupId, String artifactId, String version, String extension) {
        return ArtifactFactoryRequest.builder()

		t.Error(err)
	}

	if string(toJSONString(got)) != string(toJSONString(want)) {
		t.Errorf("got %s; want %s", toJSONString(got), toJSONString(want))
	}
}

type LevelA1 struct {
	ID    uint
	Value string
}

type LevelA2 struct {
	ID       uint
	Value    string
	LevelA3s []*LevelA3 `json:",omitempty"`
}

type LevelA3 struct {