docs: public static void main(String[] args)
      throws IOException, NoSuchAlgorithmException, InvalidKeyException, XmlPullParserException {
      try {
        /* play.min.io for test and development. */
        MinioClient minioClient = new MinioClient("https://play.min.io:9000", "Q3AM3UQ867SPQQA43P2F",
                                                  "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG");
  
        /* Amazon S3: */
        // MinioClient minioClient = new MinioClient("https://s3.amazonaws.com", "YOUR-ACCESSKEYID",
        //                                           "YOUR-SECRETACCESSKEY");
  
        // Check whether 'my-bucketname' exist or not.
        boolean found = minioClient.bucketExists("my-bucketname");
        if (found) {
          // List all incomplete multipart upload of objects in 'my-bucketname'
          Iterable<Result<Upload>> myObjects = minioClient.listIncompleteUploads("my-bucketname");
          for (Result<Upload> result : myObjects) {
            Upload upload = result.get();
            System.out.println(upload.uploadId() + ", " + upload.objectName());
          }
        } else {
          System.out.println("my-bucketname does not exist");
        }
      } catch (MinioException e) {
        System.out.println("Error occurred: " + e);
      }
    }