service.startAsync().awaitRunning();
    assertEquals(1, service.startUpCalled);
    assertEquals(Service.State.RUNNING, service.state());
    assertThat(service.transitionStates).containsExactly(Service.State.STARTING);
  }

  public void testStart_failed() {
    final Exception exception = new Exception("deliberate");
    TestService service =
        new TestService() {
          @Override

# CORS (Cross-Origin Resource Sharing)

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS or "Cross-Origin Resource Sharing"</a> refers to the situations when a frontend running in a browser has JavaScript code that communicates with a backend, and the backend is in a different "origin" than the frontend.

## Origin

                }
                else {
                    // at least on samba, SmbComOpenAndX fails without the pipe prefix
                    this.handle = this.pipe
                            .openUnshared("\\pipe" + getUncPath(), this.openFlags, this.access, this.sharing, SmbConstants.ATTR_NORMAL, 0);
                }

    service.startAsync().awaitRunning();
    assertEquals(1, service.startUpCalled);
    assertEquals(Service.State.RUNNING, service.state());
    assertThat(service.transitionStates).containsExactly(Service.State.STARTING);
  }

  public void testStart_failed() {
    final Exception exception = new Exception("deliberate");
    TestService service =
        new TestService() {
          @Override

  public void testStateOrdering() {
    // List every valid (direct) state transition.
    assertLessThan(NEW, STARTING);
    assertLessThan(NEW, TERMINATED);

    assertLessThan(STARTING, RUNNING);
    assertLessThan(STARTING, STOPPING);
    assertLessThan(STARTING, FAILED);

    assertLessThan(RUNNING, STOPPING);
    assertLessThan(RUNNING, FAILED);

    assertLessThan(STOPPING, FAILED);

[2020-01-01 00:00:00] Q10000 starting              : OkHttp ConnectionPool
[2020-01-01 00:00:00] Q10000 run again after 300 s : OkHttp ConnectionPool
[2020-01-01 00:00:00] Q10000 finished run in   1 ms: OkHttp ConnectionPool
[2020-01-01 00:00:00] Q10001 scheduled after   0 µs: OkHttp squareup.com applyAndAckSettings
[2020-01-01 00:00:00] Q10001 starting              : OkHttp squareup.com applyAndAckSettings

class="external-link" target="_blank">Verwenden Sie dafür das Präfix 'X-'</a>.

Wenn Sie jedoch benutzerdefinierte Header haben, die ein Client in einem Browser sehen soll, müssen Sie sie zu Ihrer CORS-Konfigurationen ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) hinzufügen, indem Sie den Parameter `expose_headers` verwenden, der in der <a href="https://www.starlette.io/middleware/#corsmiddleware" class="external-link" target="_blank">Starlette-CORS-Dokumentation</a>...

     * 
     * @param mode
     *            access mode (r|rw)
     * @param sharing
     *            flags indicating for which operations others may concurrently open the file
     * @return random access file, needs to be closed when finished
     * @throws CIFSException
     * 
     */
    SmbRandomAccess openRandomAccess ( String mode, int sharing ) throws CIFSException;


    /**
     * Opens the file for random access

    /**
     * Called when the service transitions from {@linkplain State#NEW NEW} to {@linkplain
     * State#STARTING STARTING}. This occurs when {@link Service#startAsync} is called the first
     * time.
     */
    public void starting() {}

    /**
     * Called when the service transitions from {@linkplain State#STARTING STARTING} to {@linkplain
     * State#RUNNING RUNNING}. This occurs when a service has successfully started.
     */

# CORS (Cross-Origin Resource Sharing)

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS ou "Cross-Origin Resource Sharing"</a> refere-se às situações em que um frontend rodando em um navegador possui um código JavaScript que se comunica com um backend, e o backend está em uma "origem" diferente do frontend.

## Origem