item.id = 999L;

        // Verify through getter
        assertEquals(999L, item.getId());

        // Verify direct field access
        assertEquals(999L, item.id);
    }

    public void test_sequentialIdAssignment() {
        // Test sequential ID assignment pattern
        TestDictionaryItem[] items = new TestDictionaryItem[5];

        for (int i = 0; i < items.length; i++) {