digest == null &&
                auth != NtlmPasswordAuthentication.NULL &&
                NtlmPasswordAuthentication.NULL.equals( auth ) == false;
    }

    void ssn139() throws IOException {
        Name calledName = new Name( address.firstCalledName(), 0x20, null );
        do {

            }
            String name = config.getName();
            Object value = evaluator.evaluate(config.getValue());
            return new XmlNodeImpl(name, value != null ? value.toString() : null, null, children, null);
        }
    }

    static class PathConverter extends AbstractBasicConverter {
        @Override
        public boolean canConvert(Class<?> type) {

        this.versionResolver = Objects.requireNonNull(versionResolver, "versionResolver cannot be null");
        this.versionRangeResolver = Objects.requireNonNull(versionRangeResolver, "versionRangeResolver cannot be null");
        this.artifactResolver = Objects.requireNonNull(artifactResolver, "artifactResolver cannot be null");

      return null;
    }
    long accum = -digit;

    long cap = Long.MIN_VALUE / radix;

    while (index < string.length()) {
      digit = AsciiDigits.digit(string.charAt(index++));
      if (digit < 0 || digit >= radix || accum < cap) {
        return null;
      }
      accum *= radix;
      if (accum < Long.MIN_VALUE + digit) {
        return null;
      }
      accum -= digit;

      return null;
    }
    long accum = -digit;

    long cap = Long.MIN_VALUE / radix;

    while (index < string.length()) {
      digit = AsciiDigits.digit(string.charAt(index++));
      if (digit < 0 || digit >= radix || accum < cap) {
        return null;
      }
      accum *= radix;
      if (accum < Long.MIN_VALUE + digit) {
        return null;
      }
      accum -= digit;

    return (javaUtilOptional == null) ? null : fromNullable(javaUtilOptional.orElse(null));
  }

  /**
   * Returns the equivalent {@code java.util.Optional} value to the given {@code
   * com.google.common.base.Optional}, or {@code null} if the argument is null.
   *
   * <p>If {@code googleOptional} is known to be non-null, use {@code googleOptional.toJavaUtil()}
   * instead.
   *

    assertEquals("null [null, null]", Strings.lenientFormat("%s", null, null, null));
    assertEquals("null [5, 6]", Strings.lenientFormat(null, 5, 6));
    assertEquals("null", Strings.lenientFormat("%s", (Object) null));
  }

  @J2ktIncompatible // TODO(b/319404022): Allow passing null array as varargs
  public void testLenientFormat_nullArrayVarargs() {

    /**
     * Reads the model from the specified file.
     *
     * @param input The file to deserialize the model from, must not be {@code null}.
     * @param options The options to use for deserialization, may be {@code null} to use the default values.
     * @return The deserialized model, never {@code null}.
     * @throws IOException If the model could not be deserialized.
     * @throws ModelParseException If the input format could not be parsed.

                .installationSettingsSource(
                        installationSettingsPath != null && Files.exists(installationSettingsPath)
                                ? Source.fromPath(installationSettingsPath)
                                : null)
                .projectSettingsSource(
                        projectSettingsPath != null && Files.exists(projectSettingsPath)

                    val someVal: String? = null
                    var someVar: String? = null
                    fun foo(): String? = null
                }
            """
        ) {
            assertHasErrors(
                "Method com.example.Source.foo(): From non-null returning to null returning breaking change.",
                "Method com.example.Source.getSomeVal(): From non-null returning to null returning breaking change.",