problem = new DefaultProblem(null, null, null, -1, Integer.MIN_VALUE, null);
        assertEquals(Integer.MIN_VALUE, problem.getColumnNumber());
    }

    @Test
    void testGetException() {
        DefaultProblem problem = new DefaultProblem(null, null, null, -1, -1, null);
        assertNull(problem.getException());

        Exception e = new Exception();

    // Check that the future has been set properly.
    assertTrue(future.isDone());
    assertFalse(future.isCancelled());
    assertEquals(42, (int) future.get());
  }

  public void testSetException() throws Exception {
    SettableFuture<Object> future = SettableFuture.create();
    Exception e = new Exception("foobarbaz");
    assertTrue(future.setException(e));

    // Check that the future has been set properly.
    assertTrue(future.isDone());
    assertFalse(future.isCancelled());
    assertEquals(42, (int) future.get());
  }

  public void testSetException() throws Exception {
    SettableFuture<Object> future = SettableFuture.create();
    Exception e = new Exception("foobarbaz");
    assertTrue(future.setException(e));