public void testDelegateRejection() {
    AtomicInteger numCalls = new AtomicInteger();
    AtomicBoolean reject = new AtomicBoolean(true);
    SequentialExecutor executor =
        new SequentialExecutor(
            new Executor() {
              @Override
              public void execute(Runnable r) {
                if (reject.get()) {
                  throw new RejectedExecutionException();
                }

func setRequestLimitMiddleware(h http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		tc, ok := r.Context().Value(mcontext.ContextTraceKey).(*mcontext.TraceCtxt)

		// Reject unsupported reserved metadata first before validation.
		if containsReservedMetadata(r.Header) {
			if ok {
				tc.FuncName = "handler.ValidRequest"
				tc.ResponseRecorder.LogErrBody = true
			}

 * directory metadata and reduce network round-trips for directory operations.
 */
public class DirectoryLeaseState {

    /**
     * Private constructor to prevent instantiation of this utility class
     */
    private DirectoryLeaseState() {
        // Utility class - prevent instantiation
    }

    /**
     * Directory Read and Handle caching (RH) - recommended for directory operations
     */

{* ../../docs_src/path_operation_configuration/tutorial005_py310.py hl[19] *}

/// info

Notice that `response_description` refers specifically to the response, the `description` refers to the *path operation* in general.

///

/// check

OpenAPI specifies that each *path operation* requires a response description.

After you have tests, then you can upgrade the **FastAPI** version to a more recent one, and make sure that all your code is working correctly by running your tests.

If everything is working, or after you make the necessary changes, and all your tests are passing, then you can pin your `fastapi` to that new recent version.

## About Starlette { #about-starlette }

You shouldn't pin the version of `starlette`.

  @SuppressWarnings("InlineMeInliner") // String.repeat unavailable under Java 8
  static final String LOTS_OF_DELTAS = Strings.repeat(DELTA, 62);

  @SuppressWarnings("InlineMeInliner") // String.repeat unavailable under Java 8
  private static final String ALMOST_TOO_MANY_LEVELS = Strings.repeat("a.", 127);

  @SuppressWarnings("InlineMeInliner") // String.repeat unavailable under Java 8

		res.buckets[i] = bucket[K, V]{entries: make(map[K]*Entry[K, V])}
	}

	// enable deleteExpired() running in separate goroutine for cache with non-zero TTL
	//
	// Important: done channel is never closed, so deleteExpired() goroutine will never exit,
	// it's decided to add functionality to close it in the version later than v2.
	if res.ttl != noEvictionTTL {
		go func(done <-chan struct{}) {
			ticker := time.NewTicker(res.ttl / numBuckets)

### Teste os arquivos estáticos

Inicialize seu aplicativo e vá para <a href="http://127.0.0.1:8000/static/redoc.standalone.js" class="external-link" target="_blank">http://127.0.0.1:8000/static/redoc.standalone.js</a>.

Você deverá ver um arquivo JavaScript muito longo para o **ReDoc**.

Esse arquivo pode começar com algo como:

```JavaScript
/*! For license information please see redoc.standalone.js.LICENSE.txt */

   * selecting the {@code VarHandleAtomicHelper} strategy.
   */
  private static final ClassLoader NO_VAR_HANDLE =
      getClassLoader(ImmutableSet.of("java.lang.invoke.VarHandle"));

  /**
   * This classloader disallows {@link java.lang.invoke.VarHandle} and {@link sun.misc.Unsafe},
   * which will prevent us from selecting the {@code UnsafeAtomicHelper} strategy.
   */

        assertTrue(key.isZero());
        assertArrayEquals(zeroBytes, key.getKey());
    }

    @Test
    @DisplayName("Should reject null key")
    void testNullKey() {
        assertThrows(IllegalArgumentException.class, () -> new Smb2LeaseKey(null));
    }

    @Test
    @DisplayName("Should reject wrong size key")
    void testWrongSizeKey() {
        assertThrows(IllegalArgumentException.class, () -> new Smb2LeaseKey(new byte[15]));