/*
           * We fail this `ListenableFuture`, whose result is exposed to the user through the
           * `ListenableScheduledTask` we return from the `schedule*` methods.
           */
          setException(t);

          /*
           * We fail the current run of the recurring task so that it is not rescheduled. This also
           * fails the `ScheduledFuture`, which might be visible only to users who operate directly

                            problems.add(new ModelProblemCollectorRequest(Severity.ERROR, Version.BASE)
                                    .setMessage(e.getMessage())
                                    .setException(e));
                        }
                        cache.put(value, c);
                    }
                    return c;
                }
                return value;
            }
        };

   *
   * <ul>
   *   <li>{@code null} initial state, nothing has happened.
   *   <li>{@link Cancellation} terminal state, {@code cancel} was called.
   *   <li>{@link Failure} terminal state, {@code setException} was called.
   *   <li>{@link DelegatingToFuture} intermediate state, {@code setFuture} was called.
   *   <li>{@link #NULL} terminal state, {@code set(null)} was called.

    @CanIgnoreReturnValue
    public boolean set(@Nullable V newValue) {
      return futureValue.set(newValue);
    }

    @CanIgnoreReturnValue
    public boolean setException(Throwable t) {
      return futureValue.setException(t);
    }

    private ListenableFuture<V> fullyFailedFuture(Throwable t) {
      return immediateFailedFuture(t);
    }

    @Override

   *
   * <ul>
   *   <li>{@code null} initial state, nothing has happened.
   *   <li>{@link Cancellation} terminal state, {@code cancel} was called.
   *   <li>{@link Failure} terminal state, {@code setException} was called.
   *   <li>{@link DelegatingToFuture} intermediate state, {@code setFuture} was called.
   *   <li>{@link #NULL} terminal state, {@code set(null)} was called.

        when(mockResponse.getException()).thenReturn(testException);
        assertEquals(testException, mockResponse.getException());

        // Test null exception
        when(mockResponse.getException()).thenReturn(null);
        assertNull(mockResponse.getException());

        // Verify the method was called
        verify(mockResponse, times(2)).getException();
    }

    @Test

    }

    @Test
    @DisplayName("Test Response interface methods - getException")
    void testGetException() {
        // Given
        Exception expectedException = new Exception("Test exception");
        when(response.getException()).thenReturn(expectedException);

        // When
        Exception actualException = response.getException();

        // Then
        assertEquals(expectedException, actualException);

        logger.debug("Installing {} to {}", event.getMetadata(), event.getFile());
    }

    @Override
    public void metadataResolved(RepositoryEvent event) {
        Exception e = event.getException();
        if (e != null) {
            if (e instanceof MetadataNotFoundException) {
                logger.debug(e.getMessage());
            } else if (logger.isDebugEnabled()) {

        return Optional.ofNullable(delegate.getMojoExecution()).map(me -> new DefaultMojoExecution(session, me));
    }

    @Override
    public Optional<Exception> getException() {
        return Optional.ofNullable(delegate.getException());
    }

    }

    @Override
    public void transferFailed(TransferEvent event) {
        transferCompleted(event);

        println(
                "transferFailed",
                event.getException().getClass() + ": " + event.getException().getMessage());
    }

    private void transferCompleted(TransferEvent event) {
        downloads.remove(event.getResource());

        StringBuilder buffer = new StringBuilder(64);