* comment: Path to SSL certificate authorities for secure HTTP connections.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     * @throws NumberFormatException When the property is not integer.
     */
    Integer getSearchEngineHttpSslCertificateAuthoritiesAsInteger();

    /**
     * Get the value for the key 'search_engine.username'. <br>

    // inclusive.
    assertThrows(
        NumberFormatException.class,
        () -> UnsignedBytes.parseUnsignedByte("0", Character.MIN_RADIX - 1));

    assertThrows(
        NumberFormatException.class,
        () -> UnsignedBytes.parseUnsignedByte("0", Character.MAX_RADIX + 1));

    // The radix is used as an array index, so try a negative value.

                    if (StringUtil.isNotBlank(port)) {
                        try {
                            smbAuth.setPort(Integer.parseInt(port));
                        } catch (final NumberFormatException e) {
                            logger.warn("Failed to parse {}", port, e);
                        }
                    }
                    smbAuth.setUsername(username);

        final String value = systemProperties.getProperty(key);
        if (value != null) {
            try {
                return Integer.parseInt(value);
            } catch (final NumberFormatException e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Invalid integer property value, using default: key={}, value={}, default={}", key, value, defaultValue);
                }

            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;
    }

                    int patch = Integer.parseInt(parts[2]);
                    return patch > 0;
                }
            }
        } catch (NumberFormatException e) {
            // If we can't parse it, assume it's not newer
            return false;
        }

        return false;
    }

    /**

                            logger.debug("role info is expired: {} > {}", time, maxAge);
                        }
                        return;
                    }
                } catch (final NumberFormatException e) {
                    logger.warn("Invalid role info: failed to parse timestamp from '{}'", rolesStr, e);
                    return;
                }
            }
            if (values.length > 1) {

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

    /**

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

        @Override

            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;