buildFile """
            class Plugin1 implements Plugin {
                void apply(project) {
                    project.rootProject.project(":b").apply(plugin: Plugin2)
                }
            }
            class Plugin2 implements Plugin {
                void apply(project) {

                }
            }

            project(":a").apply plugin: Plugin1
        """
        succeeds("help")

        then:
        outputContains("settings: plugin 1 visible")
        outputContains("buildSrc settings: plugin 1 visible")
        outputContains("buildSrc settings: plugin 2 visible")
        outputContains("buildSrc: plugin 1 visible")
        outputContains("buildSrc: plugin 2 visible")
        outputContains("project: plugin 1 visible")
        outputContains("project: plugin 2 not visible")
    }

            "gradle-workers-runtime",
            "gradle-dependency-management-runtime",
            "gradle-plugin-use-runtime",
            "gradle-tooling-api-builders-runtime",
            "gradle-configuration-cache-runtime",
            "gradle-unit-test-fixtures-runtime",
            "plugin1-runtime",
            "plugin2-runtime"
        ]

        and:

        executer.requireOwnGradleUserHomeDir()
    }

    def "non declarative plugin implementation can access core plugins and not core impl"() {
        given:
        publishPlugin """
            project.apply plugin: 'java'

            // Can see plugin classes
            getClass().classLoader.loadClass('org.gradle.api.plugins.JavaPlugin')

            // Can't see core impl classes

        convention = new DefaultConvention(instantiator)
        convention1 = new TestPluginConvention1()
        convention2 = new TestPluginConvention2()
        convention.plugins.plugin1 = convention1
        convention.plugins.plugin2 = convention2
    }

    @Test void mixesInEachPropertyOfConventionObject() {
        assertEquals(convention1.b, convention.extensionsAsDynamicObject.b)
    }

			setRecommendedPluginOrder: []string{"pluginA", "pluginB", "pluginC", "pluginD"},
			setDefaultOffPlugins:      sets.Set[string]{},
		},

		// scenario 3: use default off plugins and specified by enable-admission-plugins with RecommendedPluginOrder
		{
			expectedPluginNames:       []string{"pluginA", "pluginB", "pluginC", "pluginD"},
			setRecommendedPluginOrder: []string{"pluginA", "pluginB", "pluginC", "pluginD"},

    </plugin>
    <plugin id="codenarc" description="CodeNarc Plugin">
        <extends targetClass="org.gradle.api.Project" id="codenarc" extensionClass="org.gradle.api.plugins.quality.CodeNarcExtension"/>
    </plugin>
    <plugin id="pmd" description="PMD Plugin">
        <extends targetClass="org.gradle.api.Project" id="pmd" extensionClass="org.gradle.api.plugins.quality.PmdExtension"/>
    </plugin>
    <plugin id="jacoco" description="JaCoCo Plugin">

	deny.Register(plugins) // DEPRECATED as no real meaning
	eventratelimit.Register(plugins)
	extendedresourcetoleration.Register(plugins)
	gc.Register(plugins)
	imagepolicy.Register(plugins)
	limitranger.Register(plugins)
	autoprovision.Register(plugins)
	exists.Register(plugins)
	noderestriction.Register(plugins)
	nodetaint.Register(plugins)
	podnodeselector.Register(plugins)

)

// RegisterAllAdmissionPlugins registers all admission plugins
func RegisterAllAdmissionPlugins(plugins *admission.Plugins) {
	lifecycle.Register(plugins)
	validatingwebhook.Register(plugins)
	mutatingwebhook.Register(plugins)
	validatingadmissionpolicy.Register(plugins)

	// initialized later.

	// Each plugin can make use of VolumeConfig.  The single arg to this func contains *all* enumerated
	// options meant to configure volume plugins.  From that single config, create an instance of volume.VolumeConfig
	// for a specific plugin and pass that instance to the plugin's ProbeVolumePlugins(config) func.

	// HostPath recycling is for testing and development purposes only!