int errorCode = 0xC0000022; // Example error code

        // Mock the behavior of sendrecv for MsrpcSamrOpenAlias to simulate failure
        doAnswer(invocation -> {
            MsrpcSamrOpenAlias rpc = invocation.getArgument(0);
            rpc.retval = errorCode; // Simulate failure
            return null;
        }).when(mockDcerpcHandle).sendrecv(any(MsrpcSamrOpenAlias.class));

        // Act & Assert

     * @param message The error message describing the command execution failure.
     */
    public CommandExecutionException(final String message) {
        super(message);
    }

    /**
     * Constructor with error message and cause.
     * @param message The error message describing the command execution failure.
     * @param e The cause of the exception.
     */

 * This exception wraps the original cause of the execution failure.
 *
 * @since 4.0.0
 */
@Experimental
public class MavenExecutionException extends MavenException {

    /**
     * Constructs a new MavenExecutionException with the specified cause.
     *
     * @param cause The underlying exception that caused the execution failure
     */
    public MavenExecutionException(Throwable cause) {

    assertTrue(future.setException(new Exception("failure")));
    tester.testFailedFuture("failure");
  }

  public void testSetFailureNull() throws Exception {
    assertThrows(NullPointerException.class, () -> future.setException(null));
    assertFalse(future.isDone());
    assertTrue(future.setException(new Exception("failure")));
    tester.testFailedFuture("failure");
  }

  public void testCancel() throws Exception {

          // misconfigured mock. Try to switch to Failure.
          Failure failure;
          try {
            failure = new Failure(t);
          } catch (Exception | Error oomMostLikely) { // sneaky checked exception
            failure = Failure.FALLBACK_INSTANCE;
          }

    @Nullable private String value = null;
    @Nullable private Throwable failure = null;
    private boolean wasCalled = false;
    private final Object monitor = new Object();

    MockCallback(String expectedValue) {
      this.value = expectedValue;
    }

    MockCallback(Throwable expectedFailure) {
      this.failure = expectedFailure;
    }

    @Override

            "Logon failure: unknown user name or bad password.", "Logon failure: user account restriction.",
            "Logon failure: account logon time restriction violation.", "Logon failure: user not allowed to log on to this computer.",
            "Logon failure: the specified account password has expired.", "Logon failure: account currently disabled.",

 * used so that OkHttp can learn from its mistakes: if there was a failure attempting to connect to
 * a specific IP address or proxy server, that failure is remembered and alternate routes are
 * preferred.
 */
class RouteDatabase {
  private val _failedRoutes = mutableSetOf<Route>()

  val failedRoutes: Set<Route>
    @Synchronized get() = _failedRoutes.toSet()

  /** Records a failure connecting to [failedRoute]. */

    /**
     * Execution must occur before any executions of the phase proper. Failure of any {@code #BEFORE} dynamic phase
     * execution will prevent the {@link #AT} phase but will not prevent any {@link #AFTER} dynamic phases.
     */
    BEFORE("before:"),
    /**
     * Execution is the execution of the phase proper. Failure of any {@code #AT} dynamic phase execution will fail

            .build()
        connection.start()
      } catch (e: IOException) {
        logger.log(Level.INFO, "Http2Server connection failure: $e")
        socket?.closeQuietly()
      } catch (e: Exception) {
        logger.log(Level.WARNING, "Http2Server unexpected failure", e)
        socket?.closeQuietly()
      }
    }
  }

  private fun doSsl(socket: Socket): SSLSocket {
    val sslSocket =