if lvl == rootLevel {
		// metadata is a shallow copy. We can mutate it.
		_, foundName := s.Properties["name"]
		_, foundGenerateName := s.Properties["generateName"]
		if foundName && foundGenerateName && len(s.Properties) == 2 {
			s.Properties = nil
		} else if (foundName || foundGenerateName) && len(s.Properties) == 1 {
			s.Properties = nil
		}
		s.Type = ""

								},
							},
							Properties: map[string]apiextensions.JSONSchemaProps{
								"subRule": {
									Type: "object",
									XValidations: apiextensions.ValidationRules{
										{
											Rule:    "isTest == true",
											Message: "isTest should be true.",
										},
									},
									Properties: map[string]apiextensions.JSONSchemaProps{
										"isTest": {

        where:
        systemPropsCleaner                       | _
        'System.properties.clear()'              | _
        'System.properties.keySet().clear()'     | _
        'System.properties.entrySet().clear()'   | _
        'System.setProperties(new Properties())' | _
    }

    def "system property removed after update at the configuration phase is removed when running from cache"() {

                if (propertiesFile.isFile()) {
                    Properties properties = GUtil.loadProperties(propertiesFile);
                    return module(moduleName, properties, implementationClasspath);
                }
            }
        }
        return null;
    }

    private Module module(String moduleName, Properties properties, Set<File> implementationClasspath) {

import org.gradle.internal.fingerprint.LineEndingSensitivity
import org.gradle.internal.properties.InputBehavior
import org.gradle.internal.properties.InputFilePropertyType
import org.gradle.internal.properties.OutputFilePropertyType
import org.gradle.internal.properties.PropertyValue
import org.gradle.internal.properties.PropertyVisitor
import org.gradle.internal.serialize.graph.Codec

import org.gradle.internal.properties.InputFilePropertyType
import org.gradle.internal.properties.OutputFilePropertyType
import org.gradle.internal.properties.PropertyVisitor
import org.gradle.internal.properties.annotations.DefaultTypeMetadataStore
import org.gradle.internal.properties.annotations.MissingPropertyAnnotationHandler
import org.gradle.internal.properties.annotations.PropertyAnnotationHandler

         */
        void onRemove(Object key);

        /**
         * Called when the caller unconditionally removes all properties in this Properties object, for example by calling {@link Properties#clear()}.
         * <p>
         * The state of the observed Properties object is undefined for the duration of the call: it may be already completely or partially
         * modified to reflect the result of the operation.

include::sample[dir="snippets/ant/properties/groovy",files="build.gradle[tags=set-property]"]
====

Many Ant tasks set properties when they execute.
There are several ways to get the value of these properties.
You can get the property directly from the `AntBuilder` instance.
The Ant properties are also available as a Map:

====
include::sample[dir="snippets/ant/properties/groovy",files="build.xml[tags=getproperty]"]
====

====

    new File(projectDirectory, "gradle.properties") << "\norg.gradle.workers.max=${maxWorkers}\n"

}

private void setMaxHeap(File projectDirectory, String maxHeap) {
    new File(projectDirectory, "gradle.properties") << "\norg.gradle.jvmargs=-Xmx${maxHeap}\n"

}

private void setParallel(File projectDirectory, boolean parallel) {
    new File(projectDirectory, "gradle.properties") << "\norg.gradle.parallel=${parallel}\n"

        configurationCache.assertStateStored()
        outputContains "because the set of Gradle properties has changed."

        where:
        dynamicPropertyExpression << [
            'gradleProp',
            'ext.gradleProp'
        ]
    }

    @Issue("https://github.com/gradle/gradle/issues/19793")
    def "gradle properties must be accessible from task in #build"() {
        given: