num = fessConfig.getPagingSearchPageMaxSizeAsInteger();
                }
            } catch (final NumberFormatException e) {
                num = fessConfig.getPagingSearchPageSizeAsInteger();
            }
        }
        return num;
    }

    @Override
    public String getQuery() {
        return q;

                                    directive.setCrawlDelay(Math.max(0, crawlDelay));
                                }
                            } catch (final NumberFormatException e) {
                                // ignore invalid crawl-delay values
                            }
                        }

                startPosition = fessConfig.getPagingSearchPageStartAsInteger();
            } else {
                try {
                    startPosition = Integer.parseInt(start);
                } catch (final NumberFormatException e) {
                    startPosition = fessConfig.getPagingSearchPageStartAsInteger();
                }
            }
            return startPosition;
        }

        @Override

      try {
        // 1.8, 9, 10, 11, 12 etc
        val version = jvmVersion.toInt()
        if (version >= 9) return null
      } catch (_: NumberFormatException) {
        // expected on >= JDK 9
      }

      // Find Jetty's ALPN extension for OpenJDK.
      try {
        val alpnClassName = "org.eclipse.jetty.alpn.ALPN"

        if (StringUtil.isNotBlank(value)) {
            try {
                nThreads = Integer.parseInt(value);
            } catch (final NumberFormatException e) {
                logger.warn("Failed to parse " + value, e);
            }
        }
        if (nThreads < 1) {
            nThreads = 1;
        }

        final String value = paramMap.getAsString("readInterval");
        if (StringUtil.isNotBlank(value)) {
            try {
                readInterval = Long.parseLong(value);
            } catch (final NumberFormatException e) {
                logger.warn("Invalid read interval: {}", value);
            }
        }
        return readInterval;
    }

    /**
     * Sleep for the specified interval.

  private static @Nullable Double referenceTryParse(String input) {
    if (input.trim().length() < input.length()) {
      return null;
    }
    try {
      return Double.valueOf(input);
    } catch (NumberFormatException e) {
      return null;
    }
  }

  @GwtIncompatible // Doubles.tryParse
  private static void checkTryParse(String input) {
    Double expected = referenceTryParse(input);

            String rawVal = props.getProperty(key);
            if (rawVal != null) {
                try {
                    return new Date(Long.parseLong(rawVal));
                } catch (NumberFormatException e) {
                    getLogger().debug("Cannot parse lastUpdated date: '" + rawVal + "'. Ignoring.", e);
                }
            }
        }
        return null;
    }

                && StringUtil.isNotBlank(maxAccessCount)) {
            try {
                return Long.parseLong(maxAccessCount);
            } catch (final NumberFormatException e) {
                if (logger.isDebugEnabled()) {
                    logger.warn("Failed to parse {}", maxAccessCount, e);
                } else {

            for (final String value : values) {
                try {
                    list.add(Integer.parseInt(value.trim()));
                } catch (final NumberFormatException e) {}
            }
            this.days = new int[list.size()];
            for (int i = 0; i < list.size(); i++) {
                this.days[i] = list.get(i);
            }
            this.delay = delay;