return builder(nonNull(request, "request cannot be null"))
                .source(nonNull(source, "source cannot be null"))
                .build();
    }

    @Nonnull
    static ModelBuilderRequest build(@Nonnull Session session, @Nonnull ModelSource source) {
        return builder()
                .session(nonNull(session, "session cannot be null"))

class TestApiStandalone {

    @Test
    void testStandalone() {
        Session session = ApiRunner.createSession();

        ModelBuilder builder = session.getService(ModelBuilder.class);
        ModelBuilderResult result = builder.build(ModelBuilderRequest.builder()
                .session(session)
                .source(ModelSource.fromPath(Paths.get("pom.xml").toAbsolutePath()))
                .projectBuild(true)

    <groupId>org.apache.maven</groupId>
    <artifactId>maven</artifactId>
    <version>4.0.0-beta-1-SNAPSHOT</version>
  </parent>

  <artifactId>maven-builder-support</artifactId>

  <name>Maven Builder Support</name>
  <description>Support for descriptor builders (model, setting, toolchains)</description>

  <dependencies>
    <dependency>
      <groupId>org.junit.jupiter</groupId>

        <artifactId>maven-artifact</artifactId>
        <version>${project.version}</version>
      </dependency>
      <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-builder-support</artifactId>
        <version>${project.version}</version>
      </dependency>
      <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-core</artifactId>

    override val frontendKind: FrontendKind get() = FrontendKind.Fe10

    override val testPrefix: String
        get() = "descriptors"

    override fun configureTest(builder: TestConfigurationBuilder, disposable: Disposable) {
        builder.apply {
            useAdditionalService<KtTestModuleFactory> { KtSourceTestModuleFactory }

        return result;
    }

    private void missingDescriptor(
            RepositorySystemSession session, RequestTrace trace, Artifact artifact, Exception exception) {
        RepositoryEvent.Builder event = new RepositoryEvent.Builder(session, EventType.ARTIFACT_DESCRIPTOR_MISSING);
        event.setTrace(trace);
        event.setArtifact(artifact);
        event.setException(exception);

        this.artifact = artifact;
    }

    private static Metadata createRepositoryMetadata(Artifact artifact) {

        Metadata.Builder metadata = Metadata.newBuilder();
        metadata.groupId(artifact.getGroupId());
        metadata.artifactId(artifact.getArtifactId());

        Versioning.Builder versioning = Versioning.newBuilder();
        versioning.versions(List.of(artifact.getBaseVersion()));
        if (!artifact.isSnapshot()) {

 * is meant for exclusive consumption by the model builder and is opaque to the cache implementation. The cache key is
 * formed by a combination of group id, artifact id, version and tag. The first three components generally refer to the
 * identity of a model. The tag allows for further classification of the associated data on the sole discretion of the
 * model builder.
 *
 */
public interface ModelCache {

        private int getParallelism(ProjectBuildingRequest request) {
            int parallelism = DEFAULT_BUILDER_PARALLELISM;
            try {
                String str = request.getUserProperties().getProperty(BUILDER_PARALLELISM);
                if (str == null) {
                    str = request.getSystemProperties().getProperty(BUILDER_PARALLELISM);
                }
                if (str != null) {

  @Test fun inUseConnectionsNotEvicted() {
    val pool = factory.newConnectionPool()
    val poolApi = ConnectionPool(pool)
    val c1 = factory.newConnection(pool, routeA1, 50L)
    val client =
      OkHttpClient.Builder()
        .connectionPool(poolApi)
        .build()
    val call = client.newCall(Request(addressA.url)) as RealCall
    call.enterNetworkInterceptorExchange(call.request(), true, factory.newChain(call))