};
    }

    @Override
    protected void run() throws Exception {}
  }

  public void testStopWhileStarting_runNotCalled() throws Exception {
    CountDownLatch started = new CountDownLatch(1);
    FakeService service =
        new FakeService() {
          @Override
          protected void startUp() throws Exception {
            super.startUp();
            started.await();
          }

          try {
            nextToRun.call(listener);
          } catch (Exception e) { // sneaky checked exception
            // Log it and keep going.
            logger
                .get()
                .log(
                    Level.SEVERE,
                    "Exception while executing callback: " + listener + " " + nextLabel,
                    e);
          }
        }

    void testRootDirectoryNotPrefixed() throws Exception {
        ExpressionEvaluator ee = createExpressionEvaluator(createDefaultProject(), new Properties());
        assertNull(ee.evaluate("${rootDirectory}"));
    }

    @Test
    void testRootDirectoryWithNull() throws Exception {
        ExpressionEvaluator ee = createExpressionEvaluator(createDefaultProject(), new Properties());

          while (!canceled && reader.processNextEvent()) {
          }
        }
      } catch (e: Exception) {
        val exception =
          when {
            canceled -> IOException("canceled", e)
            else -> e
          }
        listener.onFailure(this, exception, response)
        return
      }
      if (canceled) {
        listener.onFailure(this, IOException("canceled"), response)

    public void fire(
            ExecutionEvent.Type eventType, MavenSession session, MojoExecution mojoExecution, Exception exception) {
        ExecutionListener listener = session.getRequest().getExecutionListener();

        if (listener != null) {
            ExecutionEvent event = new DefaultExecutionEvent(eventType, session, mojoExecution, exception);

            switch (eventType) {
                case ProjectDiscoveryStarted:

  public void testBuildTesterRequirements_class_notAnnotated() throws Exception {
    class Tester {}

    TesterRequirements requirements = buildTesterRequirements(Tester.class);

    assertThat(requirements.getPresentFeatures()).isEmpty();
    assertThat(requirements.getAbsentFeatures()).isEmpty();
  }

  public void testBuildTesterRequirements_class_empty() throws Exception {
    @Require
    class Tester {}

    TestCloseable c2 = closer.register(TestCloseable.normal());

    IOException exception = new IOException();

    try {
      try {
        throw exception;
      } catch (Throwable e) {
        throw closer.rethrow(e);
      } finally {
        closer.close();
      }
    } catch (Throwable expected) {
      assertSame(exception, expected);
    }

    assertTrue(c1.isClosed());
    assertTrue(c2.isClosed());

    assertThat(cache.getUnchecked(key)).isEqualTo(key + suffix);
  }

  static <T> Callable<T> throwing(Exception exception) {
    return new Callable<T>() {
      @Override
      public T call() throws Exception {
        throw exception;
      }
    };
  }

        }

        @Test
        @DisplayName("should handle strategy exceptions gracefully")
        void shouldHandleStrategyExceptionsGracefully() throws Exception {
            UpgradeContext context = createMockContext();
            Map<Path, Document> pomMap = Map.of(Paths.get("pom.xml"), mock(Document.class));

            // Mock first strategy to throw exception
            when(mockStrategies.get(0).isApplicable(context)).thenReturn(true);

    private final MojoExecution mojoExecution;

    private final Exception exception;

    DefaultExecutionEvent(Type type, MavenSession session, MojoExecution mojoExecution, Exception exception) {
        this.type = type;
        this.session = session;
        this.mojoExecution = mojoExecution;
        this.exception = exception;
    }

    @Override
    public Type getType() {
        return type;
    }