/**
     * @throws Exception
     */
    @Test
    public void testEqaulas() throws Exception {
        @SuppressWarnings("unchecked")
        Map<String, String> copy = (ArrayMap<String, String>) map.clone();
        assertThat(map.equals(copy), is(true));
        assertThat(map.equals(null), is(not(true)));
        map.put("3", "test3");
        assertThat(map.equals(copy), is(not(true)));
    }

    /**

        header.next = header;
        header.previous = header;
        for (int i = 0; i < size; i++) {
            addLast((E) s.readObject());
        }
    }

    @Override
    public Object clone() {
        final SLinkedList<E> copy = new SLinkedList<>();
        for (Entry e = header.next; e != header; e = e.next) {
            copy.addLast(e.element);
        }
        return copy;
    }

    /**

            final K key = (K) in.readObject();
            final V value = (V) in.readObject();
            put(key, value);
        }
    }

    @Override
    public Object clone() {
        final ArrayMap<K, V> copy = new ArrayMap<>();
        copy.threshold = threshold;
        copy.mapTable = Arrays.copyOf(mapTable, size);
        copy.listTable = Arrays.copyOf(listTable, size);

            load();
        }
        return properties;
    }

    @Override
    public void clear() {
        getProperties().clear();
    }

    @Override
    public Object clone() {
        final DynamicProperties dynamicProperties = new DynamicProperties(propertiesFile.getAbsolutePath());
        dynamicProperties.checkInterval = checkInterval;
        return dynamicProperties;
    }