### Question:
PnfExtCpData { public void setCpProtocolData(List<CpProtocolData> cpProtocolData) { this.cpProtocolData = cpProtocolData; }  String getCpInstanceI16(); void setCpInstanceI16(String cpInstanceI16); String getCpdId(); void setCpdId(String cpdId); List<CpProtocolData> getCpProtocolData(); void setCpProtocolData(List<CpProtocolData> cpProtocolData);  }### Answer:
@Test public void setCpProtocolData() { pnfExtCpData.setCpProtocolData(new List<CpProtocolData>() { @Override public int size() { return 0; } @Override public boolean isEmpty() { return false; } @Override public boolean contains(Object o) { return false; } @Override public Iterator<CpProtocolData> iterator() { return null; } @Override public Object[] toArray() { return new Object[0]; } @Override public <T> T[] toArray(T[] a) { return null; } @Override public boolean add(CpProtocolData cpProtocolData) { return false; } @Override public boolean remove(Object o) { return false; } @Override public boolean containsAll(Collection<?> c) { return false; } @Override public boolean addAll(Collection<? extends CpProtocolData> c) { return false; } @Override public boolean addAll(int index, Collection<? extends CpProtocolData> c) { return false; } @Override public boolean removeAll(Collection<?> c) { return false; } @Override public boolean retainAll(Collection<?> c) { return false; } @Override public void clear() { } @Override public CpProtocolData get(int index) { return null; } @Override public CpProtocolData set(int index, CpProtocolData element) { return null; } @Override public void add(int index, CpProtocolData element) { } @Override public CpProtocolData remove(int index) { return null; } @Override public int indexOf(Object o) { return 0; } @Override public int lastIndexOf(Object o) { return 0; } @Override public ListIterator<CpProtocolData> listIterator() { return null; } @Override public ListIterator<CpProtocolData> listIterator(int index) { return null; } @Override public List<CpProtocolData> subList(int fromIndex, int toIndex) { return null; } }); }