Collector.of(
          () -> new ToOptionalState<>(null),
          ToOptionalState::add,
          ToOptionalState::combine,
          ToOptionalState::getOptional,
          Collector.Characteristics.UNORDERED);

  /**
   * A collector that converts a stream of zero or one elements to an {@code Optional}.
   *

      Collector.of(
          () -> new ToOptionalState<>(null),
          ToOptionalState::add,
          ToOptionalState::combine,
          ToOptionalState::getOptional,
          Collector.Characteristics.UNORDERED);

  /**
   * A collector that converts a stream of zero or one elements to an {@code Optional}.
   *

                        dependency = dependency.withScope(managedDependency.getScope());
                    }
                    if (dependency.getOptional() == null && managedDependency.getOptional() != null) {
                        dependency = dependency.withOptional(managedDependency.getOptional());
                    }
                    if (dependency.getExclusions().isEmpty()

            exclusions.add(convert(exclusion));
        }

        return new Dependency(
                artifact,
                dependency.getScope(),
                dependency.getOptional() != null ? dependency.isOptional() : null,
                exclusions);
    }

    private Exclusion convert(org.apache.maven.model.Exclusion exclusion) {

    public boolean isOptional() {
        return (getOptional() != null) ? Boolean.parseBoolean(getOptional()) : false;
    }

            ]]>
          </code>
        </codeSegment>
        <codeSegment>
          <version>4.0.0/4.0.99</version>
          <code>
            <![CDATA[
    public void setOptional(boolean optional) {
        setOptional(String.valueOf(optional));
    }

    @get:Input
    @get:Optional
    abstract val commitId: Property<String>

    @get:Input
    @get:Optional
    abstract val scriptTemplateCommitId: Property<String>

    @get:Input
    abstract val snapshot: Property<Boolean>

    @get:Input
    abstract val promotionBuild: Property<Boolean>

    @get:Input
    @get:Optional
    abstract val buildTimestamp: Property<Date>

     */
    @get:Input
    @get:Optional
    @get:Option(option = "fix", description = "When enabled, will write the correct computed runtimes back to the build files")
    abstract val fix: Property<Boolean>

    /**
     * If enabled, prints extra details describing why a target runtime declaration is invalid.
     */
    @get:Input
    @get:Optional