if (StringUtil.isBlank(key) || StringUtil.isBlank(value)) {
            throw new CrawlerSystemException("key or value is null.");
        }

        featureMap.put(key, value);
    }

    public void addProperty(final String key, final String value) {
        if (StringUtil.isBlank(key) || StringUtil.isBlank(value)) {
            throw new CrawlerSystemException("key or value is null.");
        }

    }

    private void validateParameters() {
        if (min < 0) {
            throw new IllegalArgumentException("The min parameter cannot be negative.");
        }
        if (max < 0) {
            throw new IllegalArgumentException("The max parameter cannot be negative.");
        }
        if (max < min) {
            throw new IllegalArgumentException("The length cannot be negative.");
        }
    }

            if (e.status() == RestStatus.CONFLICT) {
                throw new CrawlingAccessException("[" + e.status() + "] Failed to insert " + id, e);
            }
            throw new OpenSearchAccessException("[" + e.status() + "] Failed to insert " + id, e);
        } catch (final Exception e) {
            throw new OpenSearchAccessException("Failed to insert " + id, e);
        }
    }

          throw multiples(true);
        }
        return this;
      }
    }

    @IgnoreJRERequirement // see enclosing class (whose annotation Animal Sniffer ignores here...)
    Optional<Object> getOptional() {
      if (extras.isEmpty()) {
        return Optional.ofNullable(element);
      } else {
        throw multiples(false);
      }
    }

        "Map.merge(absent, value, function) should return value",
        v3(),
        getMap()
            .merge(
                k3(),
                v3(),
                (oldV, newV) -> {
                  throw new AssertionFailedError(
                      "Should not call merge function if key was absent");
                }));
    expectAdded(e3());
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})

): T {
  val contentLength = contentLength()
  if (contentLength > Int.MAX_VALUE) {
    throw IOException("Cannot buffer entire body for content length: $contentLength")
  }

  val bytes = source().use(consumer)
  val size = sizeMapper(bytes)
  if (contentLength != -1L && contentLength != size.toLong()) {
    throw IOException("Content-Length ($contentLength) and stream length ($size) disagree")
  }
  return bytes
}

    @Override
    public boolean checkUserLoginable(final LoginCredential credential) {
        throw new UnsupportedOperationException("checkUserLoginable is not supported.");
    }

    @Override
    protected void checkCredential(final TypicalLoginAssist<String, FessUserBean, FessUser>.CredentialChecker checker) {
        throw new UnsupportedOperationException("checkCredential is not supported.");
    }

    @Override

        } catch (SAXNotRecognizedException | SAXNotSupportedException e) {
            throw new SAXRuntimeException(e);
        } catch (final ParserConfigurationException e) {
            throw new ParserConfigurationRuntimeException(e);
        }
        return factory;
    }

    /**

        if (!sourceFile.name.endsWith('.java')) {
            throw new DocGenerationException("Parsing non-Java files is not supported: $sourceFile")
        }
        try {
            new JavaParser().parse(sourceFile).getResult().get().accept(new SourceMetaDataVisitor(), repository)
        } catch (Exception e) {
            throw new DocGenerationException("Could not parse '$sourceFile'.", e)
        }
    }

        .url("http://publicobject.com/helloworld.txt")
        .build();

    String response1Body;
    try (Response response1 = client.newCall(request).execute()) {
      if (!response1.isSuccessful()) throw new IOException("Unexpected code " + response1);

      response1Body = response1.body().string();
      System.out.println("Response 1 response:          " + response1);