// We avoid allocating anything.
      return of();
    }
    // Collection<E>.toArray() is required to contain only E instances, and all we do is read them.
    // TODO(cpovirk): Consider using Object[] anyway.
    @SuppressWarnings("unchecked")
    E[] array = (E[]) elements.toArray();
    /*
     * For a Set, we guess that it contains no duplicates. That's just a guess for purpose of

   * empty arrays. Presumably {@link NullPointerTester} could likewise misbehave under j2objc, but I
   * don't know that anyone uses it there, anyway.
   */
  private enum NullnessAnnotationReader {
    FROM_DECLARATION_AND_TYPE_USE_ANNOTATIONS {
      @Override
      boolean isNullable(Invokable<?, ?> invokable) {

                  service.awaitTermination(terminationTimeout, timeUnit);
                } catch (InterruptedException ignored) {
                  // We're shutting down anyway, so just ignore.
                }
              }));
    }

    @VisibleForTesting
    void addShutdownHook(Thread hook) {
      Runtime.getRuntime().addShutdownHook(hook);
    }
  }

  }

  @Test
  fun bodyResponseUnknownEncoded() {
    setLevel(Level.BODY)
    server.enqueue(
      MockResponse
        .Builder() // It's invalid to return this if not requested, but the server might anyway
        .setHeader("Content-Encoding", "br")
        .setHeader("Content-Type", PLAIN)
        .body(Buffer().write("iwmASGVsbG8sIEhlbGxvLCBIZWxsbwoD".decodeBase64()!!))
        .build(),
    )

    public void checkArray(Converter<String, Integer> c, String s) {
      calledWith(c, s);
    }

    void check() {
      runTester();
      @SuppressWarnings("unchecked") // We are checking it anyway
      Converter<String, Integer> defaultConverter =
          (Converter<String, Integer>) getDefaultParameterValue(0);
      assertEquals(Integer.valueOf(0), defaultConverter.convert("anything"));

     * perform even a cast, much less a runtime check.
     *
     * All that said, don't forget that everyone should call converter.convert() instead of
     * converter.apply(), anyway. If clients use only converter.convert(), then their nullness
     * checkers are unlikely to ever look at the annotations on this declaration.
     *

     * <p>
     * If there are Maven3 passwords presents in settings, this results in doubled warnings emitted. So Plexus DI
     * creation call keeps "emitSettingsWarnings" false. If there are fatal issues, it will anyway "die" at that
     * spot before warnings would be emitted.
     * <p>
     * The method returns a "cleaner" runnable, as during extension loading the context needs to be "cleaned", restored

---

**Note**: You can mix `def` and `async def` in your *path operation functions* as much as you need and define each one using the best option for you. FastAPI will do the right thing with them.

Anyway, in any of the cases above, FastAPI will still work asynchronously and be extremely fast.

But by following the steps above, it will be able to do some performance optimizations.

## Technical Details { #technical-details }

   * Reads all bytes from an input stream into a byte array. The given expected size is used to
   * create an initial byte array, but if the actual number of bytes read from the stream differs,
   * the correct result will be returned anyway.
   */
  static byte[] toByteArray(InputStream in, long expectedSize) throws IOException {
    checkArgument(expectedSize >= 0, "expectedSize (%s) must be non-negative", expectedSize);
    if (expectedSize > MAX_ARRAY_LEN) {

 * publicly visible subclass), and I doubt any of our current or future Kotlin extensions for the
 * package will refer to the class. Plus, @ParametricNullness is only a temporary workaround,
 * anyway, so we just need to get by without the annotations here until Kotlin better understands
 * our other nullness annotations.
 */
final class Synchronized {
  private Synchronized() {}