*/
  operator fun hasNext(): Boolean = hasNextProxy() || postponedRoutes.isNotEmpty()

  @Throws(IOException::class)
  operator fun next(): Selection {
    if (!hasNext()) throw NoSuchElementException()

    // Compute the next set of routes to attempt.
    val routes = mutableListOf<Route>()
    while (hasNextProxy()) {

            final long now = SystemUtil.currentTimeMillis();
            if (now - previousTime < interval) {
                throw new IllegalStateException();
            }
            previousTime = now;

            count++;
            if (count <= exceptionCount) {
                throw new CrawlerSystemException("exception " + count);
            }

            final ResponseData responseData = new ResponseData();

     * @param params The parameters.
     * @return The extracted data.
     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }
        try {
            @SuppressWarnings("resource")
            final org.apache.poi.hssf.extractor.ExcelExtractor excelExtractor =

                            .execute();
                }
                return ReaderUtil.readText(reader);
            }
        } catch (final TikaException e) {
            throw e;
        } catch (final Exception e) {
            throw new ExtractException("Failed to read a content.", e);
        } finally {
            FileUtil.deleteInBackground(tempFile);
        }
    }

    /**
     * Creates a metadata.

        try (CurlResponse curlResponse = dictionaryManager.getContentResponse(this)) {
            reload(updater, curlResponse.getContentAsStream());
        } catch (final IOException e) {
            throw new DictionaryException("Failed to parse " + path, e);
        }
    }

    /**
     * Reloads the stemmer override dictionary from an input stream.
     *

        try {
            server.start();
        } catch (final Exception e) {
            throw new CrawlerSystemException(e);
        }
    }

    public void stop() {
        try {
            server.stop();
            server.join();
        } catch (final Exception e) {
            throw new CrawlerSystemException(e);
        } finally {
            if (tempDocRoot) {
                docRoot.delete();

        IOException error = new IOException("Test error");

        // Should not throw exception
        assertDoesNotThrow(() -> channelManager.handleChannelFailure(channel, error));
    }

    @Test
    void testEstablishReplacementChannel() {
        // Should not throw exception even when no interfaces are available
        assertDoesNotThrow(() -> channelManager.establishReplacementChannel());

    future.set(
        new Object() {
          @Override
          public String toString() {
            throw new OutOfMemoryError();
          }

          @Override
          public int hashCode() {
            throw new OutOfMemoryError();
          }
        });

    String unused = future.toString();

        for (int i = 0; i < 8; i++) {
            if (material[i] != NTLMSSP_SIGNATURE[i]) {
                throw new IOException("Not an NTLMSSP message.");
            }
        }
        if (readULong(material, 8) != 1) {
            throw new IOException("Not a Type 1 message.");
        }
        final int flags = readULong(material, 12);
        String suppliedDomain = null;

     * @throws CrawlerSystemException if the access result is null or already exists
     */
    @Override
    public void store(final AccessResultImpl<Long> accessResult) {
        if (accessResult == null) {
            throw new CrawlerSystemException("AccessResult is null.");
        }

        synchronized (idCountLock) {
            idCount++;
            accessResult.setId(idCount);