errStr = throughputHighestResults[i].Error
				}

				// if the default concurrency yields zero results, throw an error.
				if throughputHighestResults[i].Downloads == 0 && opts.concurrencyStart == concurrency {
					errStr = fmt.Sprintf("no results for downloads upon first attempt, concurrency %d and duration %s",
						opts.concurrencyStart, opts.duration)
				}

    @Override
    public void transferProgressed(TransferEvent event) {
        TransferResource resource = event.getResource();
        downloads.put(resource, event.getTransferredBytes());

        StringBuilder buffer = new StringBuilder(64);

        for (Map.Entry<TransferResource, Long> entry : downloads.entrySet()) {
            long total = entry.getKey().getContentLength();
            long complete = entry.getValue();

  - [Downloads](#downloads-1)
  - [Changelog since v1.3.7](#changelog-since-v137)
    - [Other notable changes](#other-notable-changes-2)
- [v1.3.7](#v137)
  - [Downloads](#downloads-2)
  - [Changelog since v1.3.6](#changelog-since-v136)
    - [Other notable changes](#other-notable-changes-3)
- [v1.3.6](#v136)
  - [Downloads](#downloads-3)
  - [Changelog since v1.3.5](#changelog-since-v135)

- [v1.18.11](#v11811)
  - [Downloads for v1.18.11](#downloads-for-v11811)
  - [Changelog since v1.18.10](#changelog-since-v11810)
  - [Changes by Kind](#changes-by-kind-8)
    - [Bug or Regression](#bug-or-regression-8)
  - [Dependencies](#dependencies-9)
    - [Added](#added-9)
    - [Changed](#changed-9)
    - [Removed](#removed-9)
- [v1.18.10](#v11810)
  - [Downloads for v1.18.10](#downloads-for-v11810)

# "gsutil rsync -r" is recursive and makes directories work.
# "gsutil rsync -d" is "sync and delete files from destination if not present in source"

DOWNLOADS="$(mktemp -d)"
mkdir -p "$DOWNLOADS"
gsutil -m rsync -r "$TFCI_ARTIFACT_STAGING_GCS_URI" "$DOWNLOADS"
ls "$DOWNLOADS"

# Upload all build artifacts to e.g. gs://tensorflow/versions/2.16.0-rc1 (releases) or

- [v1.17.2](#v1172)
  - [Downloads for v1.17.2](#downloads-for-v1172)
    - [Client Binaries](#client-binaries-15)
    - [Server Binaries](#server-binaries-15)
    - [Node Binaries](#node-binaries-15)
  - [Changelog since v1.17.1](#changelog-since-v1171)
- [v1.17.1](#v1171)
  - [Downloads for v1.17.1](#downloads-for-v1171)
    - [Client Binaries](#client-binaries-16)
    - [Server Binaries](#server-binaries-16)

 * <li>Download and Cache: If Maven finds the artifact in a remote repository, it downloads it and stores it in the local repository for future use.</li>
 * </ol>
 * <p>By caching artifacts in the local repository, Maven minimizes the need to repeatedly download the same artifacts, thus optimizing the build process.</p>
 *
 * <h3>Projects</h3>
 *

- [v1.4.2](#v142)
  - [Downloads](#downloads-1)
  - [Changelog since v1.4.2-beta.1](#changelog-since-v142-beta1-1)
    - [Other notable changes](#other-notable-changes-8)
- [v1.4.2-beta.1](#v142-beta1)
  - [Downloads](#downloads-2)
  - [Changelog since v1.4.1](#changelog-since-v141)
    - [Other notable changes](#other-notable-changes-9)
- [v1.4.1](#v141)
  - [Downloads](#downloads-3)

  echo Error: curl is not installed or does not support https, wget is not installed. \
       Cannot download envoy. Please install wget or add support of https to curl.
  exit 1
}

# Downloads and extract an Envoy binary if the artifact doesn't already exist.
# Params:
#   $1: The URL of the Envoy tar.gz to be downloaded.
#   $2: The full path of the output binary.
#   $3: Non-versioned name to use

- [v1.2.5](#v125)
  - [Downloads for v1.2.5](#downloads-for-v125)
  - [Changes since v1.2.4](#changes-since-v124)
    - [Other notable changes](#other-notable-changes-2)
- [v1.2.4](#v124)
  - [Downloads for v1.2.4](#downloads-for-v124)
  - [Changes since v1.2.3](#changes-since-v123)
    - [Other notable changes](#other-notable-changes-3)
- [v1.2.3](#v123)
  - [Downloads for v1.2.3](#downloads-for-v123)
  - [Changes since v1.2.2](#changes-since-v122)