    @Test
    public void testLongAbnormal() {

        MyConfigurationManager myManager = new MyConfigurationManager();
        DefaultTypedProperty<Long> p = (DefaultTypedProperty<Long>) myManager.getProperty("long", "iKey", "9999999a");
        assertNull(null, p.typedValue());
        p = (DefaultTypedProperty<Long>) myManager.getProperty("long", "iKey", null);
        assertNull(null, p.typedValue());
        p = (DefaultTypedProperty<Long>) myManager.getProperty("long", "iKey", "    ");
        assertNull(null, p.typedValue());
    }