有人能解释一下为什么我的班级是这样定义的吗

public abstract class GenericClient
{
  private static final Logger LOG = LoggerFactory.getLogger(GenericClient.class);

  @Inject
  @ConfigProperty( name = "dirx-ws.url" )
  private String              url;

  private final Client        client;

  private HttpHeaders         httpHeaders;

  public GenericClient()
  {
    this.client = ClientBuilder.newClient();
  }

  public void setHttpHeaders( final HttpHeaders httpHeaders )
  {
    this.httpHeaders = httpHeaders;
  }

  protected HttpHeaders getHttpHeaders()
  {
    return this.httpHeaders;
  }

  protected Client getClient()
  {
    return this.client;
  }

  protected MultivaluedMap<String, Object> getHeaders()
  {
    final MultivaluedMap<String, String> myHttpHeaders = this.httpHeaders.getRequestHeaders();

    final MultivaluedMap<String, Object> result = new MultivaluedHashMap<String, Object>();

    myHttpHeaders.forEach(( name, values ) -> {
      result.putSingle(name, values.size() != 1 ? values : values.get(0));
    });

    printHeaderInfo();

    return result;
  }

  protected UriBuilder createURIBuilder( final String... paths )
  {
    final UriBuilder uriBuilder = UriBuilder.fromUri(this.url);

    for (final String path : paths)
    {
      uriBuilder.path(path);
    }

    return uriBuilder;
  }
}

没有错误，但是如果我这样定义它（唯一的变化是私有的uribuilder createduri；以及更新的方法createuribuilder）

public abstract class GenericClient
{
  private static final Logger LOG = LoggerFactory.getLogger(GenericClient.class);

  @Inject
  @ConfigProperty( name = "dirx-ws.url" )
  private String              url;

  private final Client        client;

  private HttpHeaders         httpHeaders;

  private UriBuilder          createdURI;

  public GenericClient()
  {
    this.client = ClientBuilder.newClient();
  }

  public void setHttpHeaders( final HttpHeaders httpHeaders )
  {
    this.httpHeaders = httpHeaders;
  }

  protected HttpHeaders getHttpHeaders()
  {
    return this.httpHeaders;
  }

  protected Client getClient()
  {
    return this.client;
  }

  protected MultivaluedMap<String, Object> getHeaders()
  {
    final MultivaluedMap<String, String> myHttpHeaders = this.httpHeaders.getRequestHeaders();

    final MultivaluedMap<String, Object> result = new MultivaluedHashMap<String, Object>();

    myHttpHeaders.forEach(( name, values ) -> {
      result.putSingle(name, values.size() != 1 ? values : values.get(0));
    });

    printHeaderInfo();

    return result;
  }

  protected final UriBuilder createURIBuilder( final String... paths )
  {
    if (this.createdURI == null)
    {
      this.createdURI = UriBuilder.fromUri(this.url);

      for (final String path : paths)
      {
        this.createdURI.path(path);
      }
    }

    return this.createdURI;
  }
}

我得到了错误
weld-001410:注入点具有不可代理的依赖项：[backedannotatedfield]@inject private ch.ethz.id.sws.iamws.webservices.endpoint.requestinterceptor.userclient[信息]位于ch.ethz.id.sws.iamws.webservices.endpoint.requestinterceptor.userclient（requestinterceptor）。java:0)
我的requestscoped userclient类（仅）有一个空的公共构造函数，它扩展了genericclient。