* Multiple threads call stop() simultaneously - should be safe.
     */
    @Test
    public void test_stop_concurrentAccess() throws Exception {
        final int threadCount = 10;
        final Thread[] threads = new Thread[threadCount];
        final Exception[] exceptions = new Exception[threadCount];

        for (int i = 0; i < threadCount; i++) {
            final int index = i;
            threads[i] = new Thread(() -> {

        // Execute
        final SsoMessageException exception = new SsoMessageException(null, message, cause);

        // Verify
        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
        assertNull(exception.getMessageCode());
    }

    @Test

    private Model read(String pom) throws Exception {
        String resource = "/poms/validation/" + pom;
        try (InputStream is = getClass().getResourceAsStream(resource)) {
            assertNotNull(is, "missing resource: " + resource);
            return new Model(new MavenStaxReader().read(is));
        }
    }

    private SimpleProblemCollector validate(String pom) throws Exception {

              MyException exception3 = new MyException();

              MyException sameInstance = new MyException();
              exception1.initCause(sameInstance);
              exception2.initCause(sameInstance);
              exception3.initCause(exception2);
              getDone(
                  allAsList(immediateFailedFuture(exception1), immediateFailedFuture(exception3)));
            });

              MyException exception3 = new MyException();

              MyException sameInstance = new MyException();
              exception1.initCause(sameInstance);
              exception2.initCause(sameInstance);
              exception3.initCause(exception2);
              getDone(
                  allAsList(immediateFailedFuture(exception1), immediateFailedFuture(exception3)));
            });

        final Exception cause = new RuntimeException("Underlying error");

        // Execute
        final InvalidQueryException exception = new InvalidQueryException(null, message, cause);

        // Verify
        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
        assertNull(exception.getMessageCode());
    }

    @Test

  }

  public void testSetFailure() throws Exception {
    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");
  }

   * @param exceptionType the exception type that triggers use of {@code fallback}. The exception
   *     type is matched against the input's exception. "The input's exception" means the cause of
   *     the {@link ExecutionException} thrown by {@code input.get()} or, if {@code get()} throws a
   *     different kind of exception, that exception itself. To avoid hiding bugs and other

        // When
        SmbException exception = new SmbException(ntStatus, false);

        // Then
        assertTrue(exception.getMessage().toLowerCase().contains("sharing") || exception.getMessage().toLowerCase().contains("violation")
                || exception.getMessage().toLowerCase().contains("used") || exception.getMessage().toLowerCase().contains("being used")
                || exception.getMessage().toLowerCase().contains("process"));

        executor.shutdown();

        // Then - No unexpected exceptions
        assertTrue(exceptions.isEmpty(), "No unexpected exceptions should occur");
    }

    /**
     * Test that CopyOnWriteArrayList prevents ConcurrentModificationException.
     */
    @Test
    public void testNoConcurrentModificationException() throws Exception {
        // Given