"System.getProperties().get(\"some.property\")"            | _
        "System.getProperty(\"some.property\")"                    | _
        "System.getProperty(\"some.property\", \"default.value\")" | _
        "System.setProperty(\"some.property\", \"new.value\")"     | _
        "System.clearProperty(\"some.property\")"                  | _
    }

        if (activation == null) {
            return false;
        }

        ActivationProperty property = activation.getProperty();

        if (property == null) {
            return false;
        }

        String name = property.getName();
        boolean reverseName = false;

        if (name != null && name.startsWith("!")) {
            reverseName = true;

// tag::set-prop[]
// Setting a property
val simpleMessageProperty: Property<String> = project.objects.property(String::class)
simpleMessageProperty.set("Hello, World from a Property!")
// Accessing a property
println(simpleMessageProperty.get())
// end::set-prop[]

// tag::set-prov[]
// Setting a provider
val simpleMessageProvider: Provider<String> = project.providers.provider { "Hello, World from a Provider!" }
// Accessing a provider

     * </p>
     * <p>
     * If a shared build service with the specified name is not found, and no value or convention
     * is explicitly set on the property:
     * </p>
     * <ul>
     * <li>if the property is optional, an exception will only occur if an attempt is made to obtain the value of the property (see {@link Property#get()});</li>

    private final Property<String> property = getProject().getObjects().property(String.class);

    /**
     * Defines a specific property to report. If not set then all properties will appear in the report.
     *
     * @since 7.5
     */
    @Incubating
    @Input
    @Optional
    @Option(option = "property", description = "A specific property to output")
    public Property<String> getProperty() {

            <la:form action="/admin/pathmap/">
                <la:hidden property="crudMode"/>
                <c:if test="${crudMode==2}">
                    <la:hidden property="id"/>
                    <la:hidden property="versionNo"/>
                </c:if>
                <la:hidden property="createdBy"/>
                <la:hidden property="createdTime"/>
                <div class="row">

/**
 * Provides a [TaskProvider] delegate for the task named after the property.
 */
operator fun ExistingDomainObjectDelegateProvider<out TaskContainer>.provideDelegate(
    receiver: Any?,
    property: KProperty<*>
) = ExistingDomainObjectDelegate.of(
    delegateProvider.named(property.name)
)


/**
 * Provides a [TaskProvider] delegate for the task named after the property after configuring it with the given action.
 */

            println "buildscript.property = \${propertyProvider.get()}"

            task check {}
        """

        when:
        succeeds("check", "-Dproperty=value")

        then:
        outputContains("backgroundJob.property = value")
        outputContains("buildscript.property = value")
        configurationCache.assertStateStored()

        when:

            <la:form action="/admin/keymatch/">
                <la:hidden property="crudMode"/>
                <c:if test="${crudMode==2}">
                    <la:hidden property="id"/>
                    <la:hidden property="versionNo"/>
                </c:if>
                <la:hidden property="createdBy"/>
                <la:hidden property="createdTime"/>
                <div class="row">

     *
     * @param name The name of the property to check for
     * @return {@code true} if a property has been registered with this name, otherwise {@code false}.
     */
    boolean has(String name);

    /**
     * Returns the value for the registered property with the given name.
     *
     * When using an extra properties extension from Groovy, you can also get properties via Groovy's property syntax.