*/
    public boolean hasError() {
        return hasError;
    }

    /**
     * Returns the list of errors.
     * @return The list of errors.
     */
    public List<Throwable> getErrors() {
        return errors;
    }

    /**
     * Returns the time taken for the operation.
     * @return The time taken in milliseconds.
     */
    public long getTook() {
        return took;
    }

        assertEquals(0, channelInfo.getBytesSent());
        assertEquals(0, channelInfo.getBytesReceived());
        assertEquals(0, channelInfo.getRequestsSent());
        assertEquals(0, channelInfo.getErrors());

        channelInfo.addBytesSent(1000);
        channelInfo.addBytesReceived(2000);
        channelInfo.incrementRequestsSent();
        channelInfo.incrementErrors();

     */
    public boolean hasError() {
        return !errors.isEmpty();
    }

    /**
     * Returns the list of errors.
     * @return The list of errors.
     */
    public List<Throwable> getErrors() {
        return errors;
    }

    /**
     * Returns the time taken for the operation.
     * @return The time taken in milliseconds.
     */
    public long getTook() {
        return took;
    }

@Deprecated
public interface UpdateCheckManager {

    boolean isUpdateRequired(Artifact artifact, ArtifactRepository repository);

    void touch(Artifact artifact, ArtifactRepository repository, String error);

    String getError(Artifact artifact, ArtifactRepository repository);

    boolean isUpdateRequired(RepositoryMetadata metadata, ArtifactRepository repository, File file);

     */
    public boolean isSuccess() {
        return returnCode == 0;
    }

    /**
     * Gets a human-readable error description.
     *
     * @return the error description
     */
    public String getError() {
        return error != null ? error : "Error code: " + returnCode;
    }

    /**
     * Sets the error message.
     *
     * @param error the error message
     */

        this.recommendedHeartbeatInterval = recommendedHeartbeatInterval;
    }

    /**
     * Gets the error message.
     *
     * @return the error message
     */
    public String getError() {
        return error;
    }

    /**
     * Sets the error message.
     *
     * @param error the error message
     */
    public void setError(String error) {
        this.error = error;

     */
    public boolean isSuccess() {
        return returnCode == 0;
    }

    /**
     * Gets a human-readable error description.
     *
     * @return the error description
     */
    public String getError() {
        return error != null ? error : "Error code: " + returnCode;
    }

    /**
     * Sets the error message.
     *
     * @param error the error message
     */

        this.error = error;
        this.completed = true;
    }

    /**
     * Get error if request failed
     *
     * @return exception if failed, null if successful
     */
    public Exception getError() {
        return error;
    }

    /**
     * Check if request failed
     *
     * @return true if failed, false otherwise
     */
    public boolean hasFailed() {

        this.artifactUri = artifactUri;
    }

    public String getWhy() {
        return why;
    }

    public void setWhy(String why) {
        this.why = why;
    }

    public String getError() {
        return error;
    }

    public void setError(String error) {
        this.error = error;
    }

    public boolean isError() {
        return error == null;
    }

    @Override
    public ArtifactRepository getMirrorRepository(ArtifactRepository repository) {

        Mirror mirror = mirrorSelector.getMirror(
                repository, legacySupport.getSession().getSettings().getMirrors());

        if (mirror != null) {
            String id = mirror.getId();
            if (id == null) {
                // TODO this should be illegal in settings.xml
                id = repository.getId();