throw new IllegalArgumentException("Provided component selector may not be null");
        }

        Implementation implementation = resolveImplementation(value);

        encoder.writeByte(implementation.getId());

        if (implementation == Implementation.MODULE) {
            ModuleComponentSelector moduleComponentSelector = (ModuleComponentSelector) value;

        byte id = decoder.readByte();
        Implementation implementation = Implementation.valueOf(id);
        if (implementation == null) {
            throw new IllegalArgumentException("Unable to find component identifier type with id: " + id);
        }
        switch (implementation) {
            case ROOT_PROJECT: {

import java.util.Queue;
import java.util.concurrent.atomic.AtomicReference;

public class IsolationScheme<IMPLEMENTATION, PARAMS> {
    private final Class<IMPLEMENTATION> interfaceType;
    private final Class<PARAMS> paramsType;
    private final Class<? extends PARAMS> noParamsType;

    public IsolationScheme(Class<IMPLEMENTATION> interfaceType, Class<PARAMS> paramsType, Class<? extends PARAMS> noParamsType) {

    @Override
    public TransformRegistration create(ImmutableAttributes from, ImmutableAttributes to, Class<? extends TransformAction<?>> implementation, @Nullable TransformParameters parameterObject) {
        TypeMetadata actionMetadata = actionMetadataStore.getTypeMetadata(implementation);
        boolean cacheable = implementation.isAnnotationPresent(CacheableTransform.class);

     *     <li>Must provide a zero-args constructor that is not private.</li>
     *     <li>Must not define or inherit any instance fields.</li>
     *     <li>Should not provide an implementation for {@link Named#getName()} and should define this method as abstract. Any implementation will be overridden.</li>
     *     <li>Must not define or inherit any other abstract methods.</li>
     * </ul>
     *

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.function.Function;

/**
 * Constructs the application and implementation classpaths for a test process,
 * while also optionally loading test framework implementation dependencies from
 * the distribution.
 *
 * @see ForkedTestClasspath
 */
public class ForkedTestClasspathFactory {

          .build();

  /**
   * type → implementation. Inherently mutable interfaces and abstract classes are mapped to their
   * default implementations and are "new"d upon get().
   */
  private static final ConcurrentMap<Class<?>, Class<?>> implementations = Maps.newConcurrentMap();

  private static <T> void setImplementation(Class<T> type, Class<? extends T> implementation) {

     *
     * @param parser The XML parser
     * @return Name of the custom implementation; otherwise {@code null}
     */
    private static String parseImplementation(final XmlPullParser parser) {
        return parser.getAttributeValue(null, "implementation");
    }

    /**
     * Attempts to load the named implementation, uses default implementation if no name is given.

          .build();

  /**
   * type → implementation. Inherently mutable interfaces and abstract classes are mapped to their
   * default implementations and are "new"d upon get().
   */
  private static final ConcurrentMap<Class<?>, Class<?>> implementations = Maps.newConcurrentMap();

  private static <T> void setImplementation(Class<T> type, Class<? extends T> implementation) {

        configurations.getByName(mainSourceSet.getRuntimeClasspathConfigurationName()).extendsFrom(implementation, runtimeOnly);
        // Update the default test suite's source set to extend our "extension" feature's dependency scopes.
        configurations.getByName(JvmConstants.TEST_COMPILE_CLASSPATH_CONFIGURATION_NAME).extendsFrom(implementation);