}


    @Override
    public boolean isGuest () {
        return this.type == AuthenticationType.GUEST;
    }


    static String unescape ( String str ) throws NumberFormatException, UnsupportedEncodingException {
        char ch;
        int i, j, state, len;
        char[] out;
        byte[] b = new byte[1];

        if ( str == null ) {
            return null;
        }

          "Unparseable port number: %s",
          hostPortString);
      try {
        port = Integer.parseInt(portString);
      } catch (NumberFormatException e) {
        throw new IllegalArgumentException("Unparseable port number: " + hostPortString);
      }
      checkArgument(isValidPort(port), "Port number out of range: %s", hostPortString);
    }

                dayForCleanupStr = options.expires;
                try {
                    dayForCleanup = Integer.parseInt(dayForCleanupStr);
                } catch (final NumberFormatException e) {}
            } else {
                dayForCleanup = ComponentUtil.getFessConfig().getDayForCleanup();
            }
            crawlingInfoHelper.updateParams(options.sessionId, options.name, dayForCleanup);

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

  @GwtIncompatible // Floats.tryParse
  private static void checkTryParse(String input) {
    assertThat(Floats.tryParse(input)).isEqualTo(referenceTryParse(input));

  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);

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

  @GwtIncompatible // Floats.tryParse
  private static void checkTryParse(String input) {
    assertThat(Floats.tryParse(input)).isEqualTo(referenceTryParse(input));

                        try {
                            DfTypeUtil.toLong(s);
                        } catch (final NumberFormatException e) {
                            consumer.accept(attrName);
                        }
                    }));
        } else {
            // do nothing
        }
    }

                        snapshot.setBuildNumber(Integer.parseInt(matcher.group(3)));
                        artifact.addMetadata(new SnapshotArtifactRepositoryMetadata(artifact, snapshot));
                    } catch (NumberFormatException e) {
                        logger.warn("Invalid artifact version " + artifact.getVersion() + ": " + e.getMessage());
                    }
                }
            }
        }
    }

        if (result < 0L || result > Integer.MAX_VALUE || line.isNotEmpty()) {
          throw IOException("expected an int but was \"$result$line\"")
        }
        return result.toInt()
      } catch (e: NumberFormatException) {
        throw IOException(e.message)
      }
    }

    /**
     * Returns true if none of the Vary headers have changed between [cachedRequest] and
     * [newRequest].
     */

        final String value = getSystemProperty(key);
        if (value != null) {
            try {
                return Integer.parseInt(value);
            } catch (final NumberFormatException e) {
                // ignore
            }
        }
        return defaultValue;
    }

    default void setSystemPropertyAsInt(final String key, final int value) {