* proxy server can issue an auth challenge and then close the connection.
   *
   * @return the next plan to attempt, or null if no further attempt should be made either because
   *     we've successfully connected or because no further attempts should be made.
   */
  @Throws(IOException::class)
  internal fun connectTunnel(): ConnectResult {
    val nextTunnelRequest =
      createTunnel()

     */
    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.
     *
     * @param name The optional implementation name
     * @param defaultClazz The default implementation type

     *
     * @param key The name of the method.
     * @return List list of methods
     */
    List<Method> get(String key) {
        return methodByNameMap.get(key);
    }

    /**
     * Find a method.  Attempts to find the
     * most specific applicable method using the
     * algorithm described in the JLS section
     * 15.12.2 (with the exception that it can't
     * distinguish a primitive type argument from

        assertEquals(State.CLOSED, circuitBreaker.getState(), "Circuit should be CLOSED after success threshold");

        // Test max attempts in half-open with failure scenario
        circuitBreaker.trip(); // Open again
        Thread.sleep(1100); // Wait for reset

        // First attempt transitions to HALF_OPEN
        try {
            circuitBreaker.executeWithCircuitBreaker(() -> {

        Map<String, String> initParams = new HashMap<>();
        initParams.put("jcifs.smb.client.domain", "TEST_DOMAIN");
        // Don't set domainController to avoid real connection attempts
        initParams.put("jcifs.http.loadBalance", "false");
        initParams.put("jcifs.http.enableBasic", "false");

      }
      return false;
    }

    @Override
    Entry<K, V> forEntry(int entry) {
      return new EntryForKey(entry);
    }
  }

  /**
   * An {@code Entry} implementation that attempts to follow its key around the map -- that is, if
   * the key is moved, deleted, or reinserted, it will account for that -- while not doing any extra

     */
    ServiceManagerState(ImmutableCollection<Service> services) {
      this.numberOfServices = services.size();
      servicesByState.putAll(NEW, services);
    }

    /**
     * Attempts to start the timer immediately prior to the service being started via {@link
     * Service#startAsync()}.
     */
    void tryStartTiming(Service service) {
      monitor.enter();
      try {

     */
    ServiceManagerState(ImmutableCollection<Service> services) {
      this.numberOfServices = services.size();
      servicesByState.putAll(NEW, services);
    }

    /**
     * Attempts to start the timer immediately prior to the service being started via {@link
     * Service#startAsync()}.
     */
    void tryStartTiming(Service service) {
      monitor.enter();
      try {

        }
        return getPath("WEB-INF/", "conf", names);
    }

    /**
     * Gets the path to configuration files, falling back to classpath resources if not found.
     * First attempts to find the file in the configuration directory, then searches the classpath.
     *
     * @param names the path components to append to the configuration directory

		// Protect against integer overflow
		panic("unit cannot exceed one hour")
	}
	return func(attempt uint) time.Duration {
		if attempt > 16 {
			// Protect against integer overflow
			attempt = 16
		}
		// sleep = random_between(unit, min(cap, base * 2 ** attempt))
		sleep := min(unit*time.Duration(1<<attempt), maxSleep)
		sleep -= time.Duration(r.Float64() * float64(sleep-unit))
		return sleep
	}
}