descriptor's requiredConnectivity field.

  * If <<<(offline == true) && (requiresOnline != true)>>>, bind
    the mojo to the lifecycle.

    In this case, the client is <<offline>>, and the mojo does not require
    online status.

  * If <<<(offline == false) && (requiresOnline == true)>>>, bind
    the mojo to the lifecycle.

    In this case, the client is <<online>>, and the mojo either requires

        }
        request.setOffline(session.isOffline());
        request.setForceUpdate(session.getRequest().isUpdateSnapshots());

        return request;
    }

    public boolean isOffline() {
        return offline;
    }

    public DefaultRepositoryRequest setOffline(boolean offline) {
        this.offline = offline;

        return this;
    }

    public boolean isForceUpdate() {

  <expressions>
    <expression>
      <syntax>settings.offline</syntax>
      <configuration>
        <![CDATA[
    <offline>true</offline>
    ]]></configuration>
      <description>
        <![CDATA[
      Flags the system as offline, to prevent accessing the network to resolve artifacts or execute plugins.

      NOTE: It's also possible to switch to offline mode on a per-build basis, using the '-o' command-line option.

        this.resolveManagedVersions = resolveManagedVersions;

        return this;
    }

    public boolean isOffline() {
        return repositoryRequest.isOffline();
    }

    public DefaultMetadataResolutionRequest setOffline(boolean offline) {
        repositoryRequest.setOffline(offline);

        return this;
    }

    public boolean isForceUpdate() {

                .append(remoteRepositories);

        return sb.toString();
    }

    public boolean isOffline() {
        return offline;
    }

    public ArtifactResolutionRequest setOffline(boolean offline) {
        this.offline = offline;

        return this;
    }

    public boolean isForceUpdate() {
        return forceUpdate;
    }

     */
    boolean isOffline();

    /**
     * Enables/disables network access to remote repositories.
     *
     * @param offline {@code true} to disable remote access, {@code false} to allow network access.
     * @return This request, never {@code null}.
     */
    MetadataResolutionRequest setOffline(boolean offline);

    /**
     * Gets the artifact to resolve metadata for.

     */
    boolean isOffline();

    /**
     * Enables/disables network access to remote repositories.
     *
     * @param offline {@code true} to disable remote access, {@code false} to allow network access.
     * @return This request, never {@code null}.
     */
    RepositoryRequest setOffline(boolean offline);

    /**

        }

        if (mojoDescriptor.isOnlineRequired() && session.isOffline()) {
            if (MojoExecution.Source.CLI.equals(mojoExecution.getSource())) {
                Throwable cause = new IllegalStateException(
                        "Goal requires online mode for execution" + " but Maven is currently offline.");
                throw new LifecycleExecutionException(

        this.loggingLevel = loggingLevel;

        return this;
    }

    @Override
    public MavenExecutionRequest setOffline(boolean offline) {
        this.offline = offline;

        return this;
    }

    @Override
    public MavenExecutionRequest setUpdateSnapshots(boolean updateSnapshots) {
        this.updateSnapshots = updateSnapshots;

        if (isProjectSettings) {
            settings = Settings.newBuilder(settings, true)
                    .localRepository(null)
                    .interactiveMode(false)
                    .offline(false)
                    .proxies(List.of())
                    .usePluginRegistry(false)
                    .servers(settings.getServers().stream()
                            .map(s -> Server.newBuilder(s, true)