}

    public void test_multipleInstances() {
        // Test that different instances have independent ID values
        TestDictionaryItem item1 = new TestDictionaryItem();
        TestDictionaryItem item2 = new TestDictionaryItem();

        item1.id = 100L;
        item2.id = 200L;

        assertEquals(100L, item1.getId());
        assertEquals(200L, item2.getId());