.build());
        options.addOption(Option.builder(NO_TRANSFER_PROGRESS)
                .longOpt("no-transfer-progress")
                .desc("Do not display transfer progress when downloading or uploading")
                .build());
        options.addOption(Option.builder()
                .longOpt(COLOR)
                .hasArg()
                .optionalArg(true)

    }

    @Override
    public void putArtifactMetadata(File source, ArtifactMetadata artifactMetadata, ArtifactRepository repository)
            throws TransferFailedException {
        logger.info("Uploading " + artifactMetadata);
        putRemoteFile(repository, source, repository.pathOfRemoteRepositoryMetadata(artifactMetadata), null);
    }

    @Override
    public void putRemoteFile(

loading.gif...

  /**
   * Returns a cache loader that uses {@code function} to load keys, without supporting either
   * reloading or bulk loading. This allows creating a cache loader using a lambda expression.
   *
   * <p>The returned object is serializable if {@code function} is serializable.
   *
   * @param function the function to be used for loading values; must never return {@code null}

 * loader and prevent it from being garbage collected. This poses a problem for environments where
 * you want to throw away the class loader. For example, dynamically reloading a web application or
 * unloading an OSGi bundle.
 *
 * <p>{@code com.google.common.base.FinalizableReferenceQueue} loads this class in its own class
 * loader. That way, this class doesn't prevent the main class loader from getting garbage

    @Nullable V get();

    /**
     * Waits for a value that may still be loading. Unlike get(), this method can block (in the case
     * of FutureValueReference).
     *
     * @throws ExecutionException if the loading thread throws an exception
     * @throws ExecutionError if the loading thread throws an error
     */
    V waitForValue() throws ExecutionException;

                    // ignore
                }
            }
        }
        lastModified = propertiesFile.lastModified();
    }

    /**
     * Returns the current properties, reloading them if the file has been updated.
     *
     * @return The current {@link Properties} instance.
     */
    protected Properties getProperties() {
        if (isUpdated()) {
            load();
        }

- Kubeadm: avoided uploading a defaulted flag value "--authorization-mode=Node,RBAC" for the kube-apiserver in the ClusterConfiguration stored in the "kube-system/kubeadm-config" ConfigMap. "Node,RBAC" are already the kubeadm defaults for this flag, so this action is redundant....

  /**
   * Returns the value associated with {@code key} in this cache, first loading that value if
   * necessary. No observable state associated with this cache is modified until loading completes.
   *
   * <p>If another call to {@link #get} or {@link #getUnchecked} is currently loading the value for
   * {@code key}, simply waits for that thread to finish and returns its loaded value. Note that

 * It includes functionality for updating configurations in a separate thread and controlling the reloading interval.
 */
public abstract class AbstractConfigHelper {

    /**
     * Default constructor.
     */
    public AbstractConfigHelper() {
        // Default constructor
    }

    /**
     * The interval for reloading.
     */
    protected long reloadInterval = 1000L;

    /**