}
                    }
                    String impl = properties.getProperty(slf4jBinding);
                    if (impl != null) {
                        return (Slf4jConfiguration) Class.forName(impl).newInstance();
                    }
                } catch (IOException | ClassNotFoundException | IllegalAccessException | InstantiationException ex) {
                    // ignore and move on to the next

    }

    protected void setupServletFileUpload(final JakartaServletDiskFileUpload upload, final HttpServletRequest request) {
        upload.setHeaderCharset(Charset.forName(request.getCharacterEncoding()));
        upload.setSizeMax(getSizeMax());
        upload.setFileCountMax(getFileCountMax()); // since commons-fileupload-1.5
    }

    protected long getSizeMax() {

  }

  private static boolean unsafeComparatorAvailable() {
    // See Java Puzzler #44
    // Use reflection instead of catching NoClassDefFoundError
    try {
      Class.forName(unsafeComparatorClassName());
      return true;
    } catch (Error | ClassNotFoundException tolerable) {
      /*
       * We're probably running on Android.
       *
       * A note on exception types:

        }
        return true;
      } else {
        return false;
      }
    }

    private static @Nullable MethodHandle updateByteBuffer() {
      try {
        Class<?> clazz = Class.forName("java.util.zip.Checksum");
        return MethodHandles.lookup()
            .findVirtual(clazz, "update", MethodType.methodType(void.class, ByteBuffer.class));
      } catch (ClassNotFoundException e) {

      return false;
    }
    try {
      Class.forName("com.google.appengine.api.utils.SystemProperty");
    } catch (ClassNotFoundException e) {
      return false;
    }
    try {
      // If the current environment is null, we're not inside AppEngine.
      return Class.forName("com.google.apphosting.api.ApiProxy")
              .getMethod("getCurrentEnvironment")

    URLClassLoader shadowLoader = new URLClassLoader(parseJavaClassPath(), null);
    @SuppressWarnings("unchecked")
    Class<WillBeUnloadedException> shadowClass =
        (Class<WillBeUnloadedException>)
            Class.forName(WillBeUnloadedException.class.getName(), false, shadowLoader);
    assertNotSame(shadowClass, WillBeUnloadedException.class);
    getChecked(immediateFuture("foo"), shadowClass);
    return new WeakReference<>(shadowLoader);

            } catch (final LinkageError e) {
                // drop through...
            }
        }

        try {
            // last chance - classic model
            return Class.forName(name);
        } catch (final Exception e) {
            throw new TypeNotPresentException(name, e);
        } catch (final LinkageError e) {
            throw new TypeNotPresentException(name, e);
        }
    }

        }
    }

    protected boolean isSupportedCharset(final String charsetName) {
        if (charsetName == null) {
            return false;
        }
        try {
            Charset.forName(charsetName);
        } catch (final Exception e) {
            return false;
        }
        return true;
    }

    protected String loadCharset(final InputStream inputStream) {

    private static final Logger logger = LoggerFactory.getLogger(AbstractCrawlerService.class);

    private static final String ID_SEPARATOR = ".";

    private static final Charset UTF_8 = Charset.forName("UTF-8");

    protected static final String ID = "id";

    protected static final String SESSION_ID = "sessionId";

    protected static final String URL = "url";

      local = Optional.absent();
      for (String currentValue : parameters.get(CHARSET_ATTRIBUTE)) {
        if (value == null) {
          value = currentValue;
          local = Optional.of(Charset.forName(value));
        } else if (!value.equals(currentValue)) {
          throw new IllegalStateException(
              "Multiple charset values defined: " + value + ", " + currentValue);
        }
      }