*            information along, may be <code>null</code>.
     */
    public void merge(Model target, Model source, boolean sourceDominant, Map<?, ?> hints) {
        Objects.requireNonNull(target, "target cannot be null");

        if (source == null) {
            return;
        }

        Map<Object, Object> context = new HashMap<>();
        if (hints != null) {
            context.putAll(hints);
        }

                    updateCheckManager.touch(artifact, repository, null);
                } catch (ResourceDoesNotExistException e) {
                    updateCheckManager.touch(artifact, repository, null);
                    throw e;
                } catch (TransferFailedException e) {
                    String error = (e.getMessage() != null)
                            ? e.getMessage()

        final String suppliedWorkstation = getSuppliedWorkstation();
        return "Type1Message[suppliedDomain=" + (suppliedDomain == null ? "null" : suppliedDomain) + ",suppliedWorkstation="
                + (suppliedWorkstation == null ? "null" : suppliedWorkstation) + ",flags=0x"
                + jcifs.smb1.util.Hexdump.toHexString(getFlags(), 8) + "]";
    }

    /**

            PluginInfo pluginInfo = extractPluginInfo(artifact);
            if (pluginInfo != null) {
                String key = pluginInfo.groupId;
                if (processedPlugins.get(key) == null) {
                    PluginsMetadata pluginMetadata = plugins.get(key);
                    if (pluginMetadata == null) {
                        pluginMetadata = new PluginsMetadata(pluginInfo, timestamp);

     *   <li>If the value is null, get the value from the context.</li>
     *   <li>If the value is null, but the context contains the expression, don't replace the expression string
     *       with the value, and continue to find other expressions.</li>
     *   <li>If the value is null, get it from the model properties.</li>
     * </ul>
     */
    @Override

        if (isInit.compareAndSet(false, true)) {
            init();
        }

        // start
        AccessTimeoutTarget accessTimeoutTarget = null;
        TimeoutTask accessTimeoutTask = null;
        if (accessTimeout != null) {
            accessTimeoutTarget = new AccessTimeoutTarget(Thread.currentThread());

    protected ResponseData processRequest(final String uri, final boolean includeContent) {
        if (smbAuthenticationHolder == null) {
            init();
        }

        // start
        AccessTimeoutTarget accessTimeoutTarget = null;
        TimeoutTask accessTimeoutTask = null;
        if (accessTimeout != null) {
            accessTimeoutTarget = new AccessTimeoutTarget(Thread.currentThread());

      when {
        response != null && response.code != 101 -> response.body.string()
        else -> null
      }

    override fun toString(): String =
      when (response) {
        null -> "Failure[$t]"
        else -> "Failure[$response]"
      }
  }

  internal data class Message(
    val bytes: ByteString? = null,
    val string: String? = null,
  )

  internal data class Ping(

        if (createdBy != null) {
            addFieldToSource(sourceMap, "createdBy", createdBy);
        }
        if (createdTime != null) {
            addFieldToSource(sourceMap, "createdTime", createdTime);
        }
        if (processType != null) {
            addFieldToSource(sourceMap, "processType", processType);
        }
        if (regex != null) {

    protected void assertObjectNotNull(String variableName, Object value) {
        if (variableName == null) {
            String msg = "The value should not be null: variableName=null value=" + value;
            throw new IllegalArgumentException(msg);
        }
        if (value == null) {
            String msg = "The value should not be null: variableName=" + variableName;
            throw new IllegalArgumentException(msg);
        }