Blob.reload() does not work as intuitively expected about java-storage HOT 6 CLOSED

package storage;

import com.google.cloud.WriteChannel;
import com.google.cloud.storage.*;
import java.nio.ByteBuffer;

import static java.nio.charset.StandardCharsets.UTF_8;

public class Writer {

    public static void main(String... args) throws Exception {

        Storage storage = StorageOptions.getDefaultInstance().getService();
        String blobName = "my-blob-name";
        String bucketName = "bucket_versioning_off";

        BlobId blobId = BlobId.of(bucketName, blobName);
        byte[] content = "Hello, World!".getBytes(UTF_8);
        BlobInfo blobInfo = BlobInfo.newBuilder(blobId).setContentType("text/plain").build();
        Blob blob = storage.create(blobInfo);
        System.out.println("-- initial --");
        System.out.println(blob);
        System.out.println("size: " + blob.getContent().length);

        try (WriteChannel writer = blob.writer()) {
            writer.write(ByteBuffer.wrap(content));
        }
        System.out.println("\n-- right after upload --");
        System.out.println(blob);
        try {
            System.out.println("content '" + new String(blob.getContent()) + "'");
        } catch (StorageException e) {
            System.out.println("content " + e.getMessage());
        }

        System.out.println("\n-- after blob = blob.reload(Blob.BlobSourceOption.generationNotMatch()) --");

        try {
            blob = blob.reload(Blob.BlobSourceOption.generationNotMatch());
            System.out.println(blob);
        } catch (StorageException e) {
            System.out.println("exception: " + e.getMessage());
            System.out.println("\n-- after blob = blob.reload() --");
            blob = blob.reload();
            System.out.println(blob);
        }

        if (blob != null) {
            System.out.println("\n-- after blob = storage.get(blob.getBlobId()) --");
            blob = storage.get(blob.getBlobId());
            System.out.println(blob);
        }

        System.out.println("\n-- after blob = storage.get(blobId) --");
        blob = storage.get(blobId);
        System.out.println(blob);
    }
}