### Question:
ListComboBoxModel extends AbstractListModel<E> implements MutableComboBoxModel<E> { public ListComboBoxModel() { myObjects = New.list(); } ListComboBoxModel(); @SafeVarargs @SuppressWarnings({ "varargs", "PMD.ConstructorCallsOverridableMethod" })  ListComboBoxModel(E... items); @SuppressWarnings("PMD.ConstructorCallsOverridableMethod")  ListComboBoxModel(Collection<? extends E> items); private  ListComboBoxModel(List<E> items); @SuppressWarnings("unchecked") @Override @Deprecated void setSelectedItem(Object anObject); void setSelectedElement(E anObject); @Override E getSelectedItem(); @Override int getSize(); @Override E getElementAt(int index); int getIndexOf(Object anObject); @Override void addElement(E anObject); @Override void insertElementAt(E anObject, int index); @Override void removeElementAt(int index); @Override void removeElement(Object anObject); void removeAllElements();  }### Answer:
@Test public void testListComboBoxModel() { ListComboBoxModel<Object> model = new ListComboBoxModel<>(); Assert.assertEquals(0, model.getSize()); }