private int alt;

    /**
     * This is really just for {@link jcifs.netbios.UniAddress}. It does
     * not throw an {@link java.net.UnknownHostException} because this
     * is queried frequently and exceptions would be rather costly to
     * throw on a regular basis here.
     *
     * @param host the hostname to resolve
     * @param tc the CIFS context
     * @return resolved name, null if not found
     */

 * possibly run in another thread. That cause should itself be an {@code Error}; if not, use {@code
 * ExecutionException} or {@link UncheckedExecutionException}. This allows the client code to
 * continue to distinguish between exceptions and errors, even when they come from other threads.
 *
 * @author Chris Povirk
 * @since 10.0
 */
@GwtCompatible
public class ExecutionError extends Error {
  /*

   changing `.java` files.

 * **Kotlin source compatibility** is the ability to upgrade Kotlin uses of OkHttp 3.x to 4.x
   without changing `.kt` files.

With a few small exceptions (below), OkHttp 4.x is both binary- and Java source-compatible with
OkHttp 3.x. You can use an OkHttp 4.x .jar file with applications or libraries built for OkHttp 3.x.

Todo lo que necesitamos hacer es manejar el request dentro de un bloque `try`/`except`:

{* ../../docs_src/custom_request_and_route/tutorial002.py hl[13,15] *}

Si ocurre una excepción, la `Request instance` aún estará en el alcance, así que podemos leer y hacer uso del request body cuando manejamos el error:

{* ../../docs_src/custom_request_and_route/tutorial002.py hl[16:18] *}

class WebSocketWriterTest {
  private val data = Buffer()
  private val random = Random(0)

  /**
   * Check all data as verified inside of the test. We do this in an AfterEachCallback so that
   * exceptions thrown from the test do not cause this check to fail.
   */
  @RegisterExtension
  val noDataLeftBehind =
    AfterEachCallback { context: ExtensionContext ->

Ahora, obtén los datos del usuario desde la base de datos (falsa), usando el `username` del campo del form.

Si no existe tal usuario, devolvemos un error diciendo "Incorrect username or password".

Para el error, usamos la excepción `HTTPException`:

{* ../../docs_src/security/tutorial003_an_py310.py hl[3,79:81] *}

### Revisa el password

En este punto tenemos los datos del usuario de nuestra base de datos, pero no hemos revisado el password.

        assertNotSame(supplied, got, "Zero-sized cache must not return the released instance");
    }

    // Edge: releasing null must be a no-op without exceptions
    @Test
    @DisplayName("releaseBuffer(null) is a no-op and does not throw")
    void releaseNullIsNoop() {
        BufferCacheImpl impl = new BufferCacheImpl(1, 4);

   `X-Android-Selected-Transport` to read the negotiated transport.


## Version 1.0.2

_2013-05-11_

 * Fix: Remove use of Java 6-only APIs.
 * Fix: Properly handle exceptions from `NetworkInterface` when querying MTU.
 * Fix: Ensure MTU has a reasonable default and upper-bound.


## Version 1.0.1

_2013-05-06_

      }
    }, {
      "testProject" : "withVerboseTestNG",
      "coverage" : {
        "per_day" : [ "linux" ]
      }
    } ]
  }, {
    "testId" : "org.gradle.performance.regression.inception.BuildSrcApiChangePerformanceTest.buildSrc abi change",
    "groups" : [ {
      "testProject" : "largeJavaMultiProject",
      "coverage" : {
        "per_day" : [ "linux" ]
      }
    }, {

  "durations" : [ {
    "testProject" : "withVerboseJUnit",
    "linux" : 209
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    "testProject" : "withVerboseTestNG",
    "linux" : 198
  } ]
}, {
  "scenario" : "org.gradle.performance.regression.inception.BuildSrcApiChangePerformanceTest.buildSrc abi change",
  "durations" : [ {
    "testProject" : "largeJavaMultiProject",
    "linux" : 678
  }, {
    "testProject" : "largeJavaMultiProjectKotlinDsl",