// Last thread wipes password
                        auth.secureWipePassword();
                    } else {
                        // Other threads try to read password
                        String pwd = auth.getPassword();
                        // Password might be null if already wiped
                        assertTrue(pwd == null || pwd.equals("ConcurrentPass123!"));

 * elements FIFO (first-in-first-out). The head of the queue is that element that has been
 * on the queue the longest time. The tail of the queue is that element that has been on
 * the queue the shortest time. New elements are inserted at the tail of the queue, and the queue
 * retrieval operations obtain elements at the head of the queue.
 *

We see that we are going to need some dependencies used in several places of the application.

So we put them in their own `dependencies` module (`app/dependencies.py`).

We will now use a simple dependency to read a custom `X-Token` header:

{* ../../docs_src/bigger_applications/app_an_py39/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}

/// tip

We are using an invented header to simplify this example.

#### Operação { #operation }

"Operação" aqui se refere a um dos "métodos" HTTP.

Um dos:

* `POST`
* `GET`
* `PUT`
* `DELETE`

...e os mais exóticos:

* `OPTIONS`
* `HEAD`
* `PATCH`
* `TRACE`

No protocolo HTTP, você pode se comunicar com cada path usando um (ou mais) desses "métodos".

---

#### Operación { #operation }

"Operación" aquí se refiere a uno de los "métodos" HTTP.

Uno de:

* `POST`
* `GET`
* `PUT`
* `DELETE`

...y los más exóticos:

* `OPTIONS`
* `HEAD`
* `PATCH`
* `TRACE`

En el protocolo HTTP, puedes comunicarte con cada path usando uno (o más) de estos "métodos".

---

        Build build = getModel().getBuild();
        return build != null ? build : Build.newInstance();
    }

    /**
     * Returns the path to the pom file for this project.
     * A project is usually read from a file named {@code pom.xml},
     * which contains the {@linkplain #getModel() model} in an XML form.
     * When a custom {@code org.apache.maven.api.spi.ModelParser} is used,
     * the path may point to a non XML file.

        response.setContentCache(cache);

        try (InputStream stream = response.getContentAsStream()) {
            assertNotNull(stream);
            byte[] buffer = new byte[1024];
            int bytesRead = stream.read(buffer);
            assertEquals(data.length, bytesRead);
            assertArrayEquals(data, Arrays.copyOf(buffer, bytesRead));
        }
    }

    @Test
    public void testGetContentAsStreamWithoutCache() {

            try {
                Map<String, ?> options = Collections.singletonMap(MetadataReader.IS_STRICT, Boolean.FALSE);

                Metadata pluginGroupMetadata =
                        metadataReader.read(metadata.getPath().toFile(), options);

                List<org.apache.maven.artifact.repository.metadata.Plugin> plugins = pluginGroupMetadata.getPlugins();

                if (plugins != null) {

//     compress: true # S2/Snappy compressed archive
//     smallerThan: 5MiB # create archive for all objects smaller than 5MiB
//     skipErrs: false # skips any source side read() errors

// BatchJobSnowball describes the snowball feature when replicating objects from a local source to a remote target
type BatchJobSnowball struct {
	line, col   int

	var sub *subHandlerID
	if m.Payload == nil {
		m.Payload = GetByteBuffer()[:0]
	}
	h, err := m.UnmarshalMsg(b)
	if err != nil {
		return nil, nil, fmt.Errorf("read write: %v", err)
	}
	if len(m.Payload) == 0 && m.Flags&FlagPayloadIsZero == 0 {
		PutByteBuffer(m.Payload)
		m.Payload = nil
	}
	if m.Flags&FlagCRCxxh3 != 0 {
		const hashLen = 4
		if len(h) < hashLen {