return (Set<String>) session.getData()
                .computeIfAbsent(
                        PomInlinerTransformer.class.getName() + ".needsInlining", ConcurrentHashMap::newKeySet);
    }

    @Override
    public void injectTransformedArtifacts(RepositorySystemSession session, MavenProject project) throws IOException {
        if (!Features.consumerPom(session.getConfigProperties())) {

    private val projectsWithNullAwayEnabled = ConcurrentHashMap.newKeySet<String>()
    private val projectsWithUncheckedDeps = ConcurrentHashMap.newKeySet<String>()
    private val projectsToEnableNullaway = ConcurrentHashMap.newKeySet<String>()

    private fun ensureProjectNotSeen(projectPath: String) {
        require(projectPath !in projectsWithNullAwayEnabled)

    return Sets.newHashSetWithExpectedSize(expectedSize);
  }

  /** Returns the platform preferred implementation of a thread-safe hash set. */
  static <E> Set<E> newConcurrentHashSet() {
    return ConcurrentHashMap.newKeySet();
  }

  /**
   * Returns the platform preferred implementation of an insertion ordered set based on a hash
   * table.
   */

)

private class ConcurrentMultiMap<K, V> {
    private val map = ConcurrentHashMap<K, MutableSet<V>>()

    fun add(key: K, value: V) =
        map.computeIfAbsent(key, { _ -> ConcurrentHashMap.newKeySet() }).add(value)

    fun getOrEmpty(key: K): Set<V> = map[key] ?: emptySet()
}

abstract class TestFilesCleanupService @Inject constructor(
    private val fileSystemOperations: FileSystemOperations,

  private var serverSocket: ServerSocket? = null
  private val connectionCount = AtomicInteger()
  private val openSockets: MutableSet<Socket> = ConcurrentHashMap.newKeySet()

  fun play() {
    serverSocket = ServerSocket(0)
    executor.execute {
      val threadName = "SocksProxy ${serverSocket!!.localPort}"
      Thread.currentThread().name = threadName
      try {