Collection<T> foundComponents = new LinkedHashSet<>();
        Collection<ClassLoader> scannedRealms = new HashSet<>();

        Thread currentThread = Thread.currentThread();
        ClassLoader originalContextClassLoader = currentThread.getContextClassLoader();
        try {
            for (MavenProject project : projects) {
                ClassLoader projectRealm = project.getClassRealm();

            pluginManager.setupPluginRealm(pluginDescriptor, session, null, null, null);
        } catch (Exception e) {
            throw new PluginManagerException(plugin, e.getMessage(), e);
        }

        ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader();
        try {
            Thread.currentThread().setContextClassLoader(pluginDescriptor.getClassRealm());

        this.packages = Collections.unmodifiableSet(new HashSet<>(packages));
        this.key = key;
        this.configuration = configuration;
    }

    /**
     * Returns ClassLoader used to load extension classes.
     */
    public ClassRealm getClassRealm() {
        return realm;
    }

    /**
     * Returns artifacts exported by the extension, identified by groupId:artifactId string key.

 * that is more mercury related and not Maven related i.e. no POMs - workspace resolver - we need
 * tools to pre-populate this repository
 *
 * h3. create an isolated classloader
 *
 * h3. lookup the plugin with a configuration
 *
 * h3. execute the plugin
 *
 * h3. plugins may have to deal with particular actions when a plugin is - installed - loaded -
 * unloaded - update - uninstalled

        if (null == name) {
            return defaultClazz; // just use the default type
        }

        // TCCL allows surrounding container to influence class loading policy
        final ClassLoader tccl = Thread.currentThread().getContextClassLoader();
        if (tccl != null) {
            try {
                return tccl.loadClass(name);
            } catch (final Exception e) {

      try {
        // Trigger an early exception over a fatal error, prefer a RuntimeException over Error.
        Class.forName("org.bouncycastle.jsse.provider.BouncyCastleJsseProvider", false, javaClass.classLoader)

        true
      } catch (_: ClassNotFoundException) {
        false
      }

    fun buildIfSupported(): BouncyCastlePlatform? = if (isSupported) BouncyCastlePlatform() else null
  }

    @Override
    protected Invoker<MavenInvokerRequest<MavenOptions>> createInvoker() {
        return new DefaultLocalMavenInvoker(ProtoLookup.builder()
                .addMapping(ClassWorld.class, new ClassWorld("plexus.core", ClassLoader.getSystemClassLoader()))
                .build());
    }

    @Override
    protected Parser<MavenInvokerRequest<MavenOptions>> createParser() {
        return new DefaultMavenParser();
    }

    @Test

  // TODO(cgdecker): maybe add a better way to check if a resource exists
  // e.g. Optional<URL> tryGetResource or boolean resourceExists
  public static URL getResource(String resourceName) {
    ClassLoader loader =
        MoreObjects.firstNonNull(
            Thread.currentThread().getContextClassLoader(), Resources.class.getClassLoader());
    URL url = loader.getResource(resourceName);

    hostname: String?,
    protocols: List<Protocol>,
  ) {
    val names = alpnProtocolNames(protocols)

    try {
      val alpnProvider =
        Proxy.newProxyInstance(
          Platform::class.java.classLoader,
          arrayOf(clientProviderClass, serverProviderClass),
          AlpnProvider(names),
        )
      putMethod.invoke(null, sslSocket, alpnProvider)
    } catch (e: InvocationTargetException) {

        return markerFile.getAbsoluteFile().getParentFile();
    }

    protected static File getFileForClasspathResource(String resource)
            throws FileNotFoundException, URISyntaxException {
        ClassLoader cloader = Thread.currentThread().getContextClassLoader();

        URL resourceUrl = cloader.getResource(resource);

        if (resourceUrl == null) {