@Override
  public String toString() {
    long nanos = elapsedNanos();

    TimeUnit unit = chooseUnit(nanos);
    double value = (double) nanos / NANOSECONDS.convert(1, unit);

    // Too bad this functionality is not exposed as a regular method call
    return Platform.formatCompact4Digits(value) + " " + abbreviate(unit);
  }

  private static TimeUnit chooseUnit(long nanos) {

```

</div>

## Verifique-o { #check-it }

Vá até a documentação interativa em: <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

Você verá algo deste tipo:

<img src="/img/tutorial/security/image01.png">

/// check | Botão Autorizar!

Você já tem um novo botão 'Authorize'.

Y también puede ser utilizada por ti mismo, para depurar, revisar y probar la misma aplicación.

## El flujo `password` { #the-password-flow }

Ahora retrocedamos un poco y entendamos qué es todo eso.

El "flujo" `password` es una de las formas ("flujos") definidas en OAuth2, para manejar la seguridad y la autenticación.

          }
        };
    try {
      Hashing.hmacMd5(badKey);
      fail();
    } catch (IllegalArgumentException expected) {
    } catch (NullPointerException toleratedOnAndroid) {
      // TODO(cpovirk): In an ideal world, we'd check here that we're running on Android.
    }
  }

  public void testEmptyInputs() throws Exception {
    String knownOutput = "8cbf764cbe2e4623d99a41354adfd390";

  project
- nice little sample projects that could be run in the core as well as integration tests

All Possible Errors
- invalid lifecycle phase (maybe same as bad CLI param, though you were talking about embedder too)
- <module> specified is not found
- malformed settings
- malformed POM
- local repository not writable
- remote repositories not available
- artifact metadata missing
- extension metadata missing

/**
 * Tests for {@link ImmutableMultiset}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public class ImmutableMultisetTest extends TestCase {

  @J2ktIncompatible
  @GwtIncompatible // suite // TODO(cpovirk): add to collect/gwt/suites
  @AndroidIncompatible // test-suite builders
  public static Test suite() {
    TestSuite suite = new TestSuite();
    suite.addTestSuite(ImmutableMultisetTest.class);

            fail("Expected IORuntimeException for large file");
        } catch (final IORuntimeException e) {
            assertTrue("Error message should mention file size", e.getMessage().contains("File too large"));
        }
    }

    /**
     * Test readBytes with file within size limit
     *
     * @throws Exception
     */
    @Test
    public void testReadBytes_NormalFile() throws Exception {

## HTTP/2 Connections

The HttpURLConnection API is a blocking API. You make a blocking write to send a request, and a blocking read to receive the response.

#### Blocking APIs

Blocking APIs are convenient because you get top-to-bottom procedural code without indirection. Network calls work like regular method calls: ask for data and it is returned. If the request fails, you get a stacktrace right where the call was made.

        } finally {
            synchronized (run_thread) {
                if (run_thread != thread) {
                    /* Thread no longer the one setup for this transport --
                     * doConnect returned too late, just ignore.
                     */
                    if ((ex0 != null) && (LogStream.level >= 2)) {
                        ex0.printStackTrace(log);
                    }
                    return;

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