return []
    }

    static List<SystemPropertyInjection> all(String prop, String value) {
        return [
            commandLine(prop, value),
            gradleProperties(prop, value),
            clientJvmArgs(prop, value)
        ]
    }

    static SystemPropertyInjection commandLine(String prop, String value) {
        return new SystemPropertyInjection() {
            @Override

assert custom.prop.get() == "new value"

tasks.create('t', SomeTask)
tasks.t.prop = custom.prop
assert tasks.t.prop.get() == "new value"

custom.prop = "changed"
assert custom.prop.get() == "changed"
assert tasks.t.prop.get() == "changed"

"""

        expect:
        succeeds()
    }

    def "can set String property value using a GString"() {
        given:

                SomeTask() {
                    value = new OtherBean(prop: 'a')
                    bean.value = new OtherBean(prop: 'b')
                }

                @TaskAction
                void run() {
                    println "this.value = " + value.prop
                    println "bean.value = " + bean.value.prop
                }
            }

            task ok(type: SomeTask)
        """

private fun <T> PrettyPrinter.appendProperty(
    prop: KProperty<T>,
    renderer: (T, Boolean) -> Unit,
    endWithNewLine: Boolean = true
) {
    appendLine(prop.name + ":")
    withIndent {
        renderer(prop.call(), endWithNewLine)
    }
}

private fun PrettyPrinter.appendSimpleProperty(prop: KProperty<Any>, endWithNewLine: Boolean = true) {
    append(prop.name + ": ")
    append(prop.call().toString())

        given:
        buildFile """
class ContactExtension {
    String prop
}

extensions.create('contacts', ContactExtension)
ext.contacts = { args ->
    return args
}

contacts {
    assert delegate instanceof ContactExtension
    prop = "value"
}
assert extensions.contacts.prop == "value"

assert contacts() == null
assert contacts("a") == "a"
"""

        expect:

        return getOperatingSystem() + getBitModel();
    }

    private int getBitModel() {
        String prop = System.getProperty("sun.arch.data.model");
        if (prop == null) {
            prop = System.getProperty("com.ibm.vm.bitmode");
        }
        if (prop != null) {
            return Integer.parseInt(prop);
        }
        return -1;
    }

            it.parameters.prop = "value 1"
        }
        def parameters = registry.registrations.getByName("service").parameters
        def service = provider.get()

        when:
        parameters.prop = "ignore me 1"

        then:
        service.prop == "value 1"

        when:
        service.parameters.prop = "ignore me 2"

        then:

			}
		}
		if (prop.ValueValidation == nil || len(prop.ValueValidation.Enum) == 0) && len(f.EnumValues()) != 0 {
			t.Errorf("field had more enum values than the property. field: %s", f.Name)
		}
		if prop.ValueValidation != nil {
			fevs := f.EnumValues()
			for _, fev := range fevs {
				found := false
				for _, pev := range prop.ValueValidation.Enum {

        configurationCacheRun 'ok', '-Dsome.prop=42'

        then:
        outputContains 'sys prop value at configuration time = 42'
        outputContains 'sys prop value at execution time = 42'
        configurationCache.assertStateStored()

        when:
        configurationCacheRun 'ok', '-Dsome.prop=42'

        then:
        outputDoesNotContain 'sys prop value at configuration time = 42'

		Extensions:           s.Extensions,
		ValueValidation:      s.ValueValidation,
		ValidationExtensions: s.ValidationExtensions,
	}
	props := make(map[string]schema.Structural, len(s.Properties))
	for k, prop := range s.Properties {
		props[k] = prop
	}
	stringType := schema.Structural{Generic: schema.Generic{Type: "string"}}
	props["kind"] = stringType
	props["apiVersion"] = stringType
	props["metadata"] = schema.Structural{