### Question:
IntegerAccessor implements PropertyAccessor<Integer> { @Override public Integer getCopy(Object object) { return object != null ? (Integer) object : null; }  @Override final Integer fromBytes(Class targetClass, byte[] b); @Override final byte[] toBytes(Object val); @Override String toString(Object object); @Override Integer fromString(Class targetClass, String s); @Override Integer getCopy(Object object); Integer getInstance(Class<?> clazz);  }### Answer:
@Test public void testGetCopy() { Integer d1 = new Integer(4); Integer d2 = accessor.getCopy(d1); Assert.assertEquals(d1, d2); }