*
     * @param systemProperties The system properties, may be {@code null}.
     * @return This request, never {@code null}.
     */
    ProjectBuildingRequest setSystemProperties(Properties systemProperties);

    /**
     * Gets the system properties to use for interpolation and profile activation. The system properties are collected

import org.gradle.util.SetSystemProperties
import org.gradle.util.internal.TextUtil
import org.junit.Rule
import spock.lang.Issue

abstract class MavenConversionIntegrationTest extends AbstractInitIntegrationSpec {

    @Rule
    public final TestResources resources = new TestResources(temporaryFolder)

    @Rule
    public final SetSystemProperties systemProperties = new SetSystemProperties()

import org.gradle.test.precondition.Requires;
import org.gradle.test.precondition.TestPrecondition;
import org.gradle.util.EmptyStatement;
import org.gradle.util.Matchers;
import org.gradle.util.SetSystemProperties;
import org.gradle.util.TestClassLoader;
import org.gradle.util.UsesNativeServices;
import org.gradle.util.UsesNativeServicesExtension;

import javax.annotation.Nullable;
import java.lang.annotation.Annotation;

        settingsRequest.setGlobalSettingsFile(globalSettingsFile);
        settingsRequest.setProjectSettingsFile(projectSettingsFile);
        settingsRequest.setUserSettingsFile(userSettingsFile);
        settingsRequest.setSystemProperties(cliRequest.getSystemProperties());
        Properties props = cliRequest.getUserProperties();
        if (cliRequest.getRootDirectory() != null) {
            props = new Properties();

                    if (session != null) {
                        configuration.setSystemProperties(session.getSystemProperties());
                        configuration.setUserProperties(session.getUserProperties());
                    } else {
                        configuration.setSystemProperties(getSystemProperties());
                        configuration.setUserProperties(new Properties());

                .setRemoteRepositories(request.getRemoteRepositories())
                .setPluginArtifactRepositories(request.getPluginArtifactRepositories())
                .setSystemProperties(executionProperties)
                .setUserProperties(new Properties());

        initRepoSession(configuration);

        MavenSession session = new MavenSession(

                .setRemoteRepositories(request.getRemoteRepositories())
                .setPluginArtifactRepositories(request.getPluginArtifactRepositories())
                .setSystemProperties(executionProperties)
                .setUserProperties(new Properties());

        List<MavenProject> projects = new ArrayList<>();

        if (pom != null) {

                // This merge is on purpose because otherwise user properties would override model
                // properties in dependencies the user does not know. See MNG-7563 for details.
                modelRequest.setSystemProperties(
                        toProperties(session.getUserProperties(), session.getSystemProperties()));
                modelRequest.setUserProperties(new Properties());

        systemPropertyQueried(key, oldValue, consumer);
        listener().systemPropertyRemoved(key, consumer);
        return oldValue;
    }

    public static void setSystemProperties(Properties properties, String consumer) {
        listener().systemPropertiesCleared(consumer);
        properties.forEach((k, v) -> listener().systemPropertyChanged(k, v, consumer));

        }

        public Builder setInjectedPluginClasspath(ClassPath classPath) {
            this.injectedPluginClasspath = classPath;
            return this;
        }

        public Builder setSystemProperties(Map<String, String> systemProperties) {
            this.systemProperties = systemProperties;
            return this;
        }