return systemHelper.eolTime - 1000L;
            }
        };
        helper2.eolTime = systemHelper.eolTime;
        assertFalse(helper2.isEoled());
    }

    public void test_updateConfiguration() {
        assertNotNull(systemHelper.updateConfiguration());
        systemHelper.addUpdateConfigListener("XXX", () -> "OK");
        assertTrue(systemHelper.updateConfiguration().contains("XXX: OK"));
    }