* requirements.
     *
     * @param validationContext the validation context
     * @param propertyName the name of the property
     * @param beanType the type of the bean
     */
    public static void validateBeanType(
        TypeValidationContext validationContext,
        String propertyName,
        Class<?> beanType
    ) {
        getUnsupportedReason(beanType).ifPresent(reason ->

            // And being empty archives is not reflected in the fingerprint.
            return hasEmptyFingerprints(sourceFileProperties, propertyName -> !propertiesRequiringIsEmptyCheck.contains(propertyName))
                && hasEmptyInputFileCollections(work, propertiesRequiringIsEmptyCheck::contains);
        }
    }

public interface PropertyVisitor {
    default void visitInputFileProperty(String propertyName, boolean optional, InputBehavior behavior, DirectorySensitivity directorySensitivity, LineEndingSensitivity lineEndingSensitivity, @Nullable FileNormalizer fileNormalizer, PropertyValue value, InputFilePropertyType filePropertyType) {}

    default void visitInputProperty(String propertyName, PropertyValue value, boolean optional) {}

    @Nullable
    @Override
    public String obtain() {
        @Nullable String propertyName = propertyNameOrNull();
        if (propertyName == null) {
            return null;
        }
        return System.getProperty(propertyName);
    }

    @Override
    public String getDisplayName() {
        return String.format("system property '%s'", propertyNameOrNull());

            if (targetMetadata.hasProperty(null, propertyName) == null) {
                if (propertyName == "class") {
                    return javaClass
                }
                throw MissingPropertyException(propertyName)
            }
            scriptReferenced()
        }

        override fun setProperty(propertyName: String, newValue: Any?) {

        }
    }

    protected InputFilePropertySpec propertySpec(String propertyName) {
        InputFilePropertySpec propertySpec = propertySpecsByName.get(propertyName);
        if (propertySpec == null) {
            throw new IllegalStateException("Unknown input property '" + propertyName + "' (known: " + propertySpecsByName.keySet() + ")");
        }
        return propertySpec;
    }

            String propertyName = entry.getKey();
            ValueSnapshot currentSnapshot = entry.getValue();
            ValueSnapshot previousSnapshot = previous.get(propertyName);
            if (previousSnapshot != null) {
                if (!currentSnapshot.equals(previousSnapshot)) {
                    changedBuilder.put(
                        propertyName,

    }

    @Override
    public boolean hasPropertyDesc(final String propertyName) {
        assertArgumentNotEmpty("propertyName", propertyName);

        return propertyDescCache.get(propertyName) != null;
    }

    @Override
    public PropertyDesc getPropertyDesc(final String propertyName) {
        assertArgumentNotEmpty("propertyName", propertyName);

        final PropertyDesc pd = propertyDescCache.get(propertyName);

    private final List<ReplacedAccessor> replacedAccessors;

    public UpgradedProperty(String containingType, String propertyName, String methodName, String methodDescriptor, List<ReplacedAccessor> replacedAccessors) {
        this.containingType = containingType;
        this.propertyName = propertyName;
        this.methodName = methodName;
        this.methodDescriptor = methodDescriptor;

        GradleLazyType propertyType,
        DeprecationSpec deprecationSpec,
        BinaryCompatibility binaryCompatibility
    ) {
        this.propertyName = propertyName;
        this.methodName = methodName;
        this.methodDescriptor = methodDescriptor;
        this.propertyType = propertyType;
        this.isFluentSetter = isFluentSetter;
        this.implementationClassName = implementationClassName;