### Question:
NewAssetEvent extends AssetEvent { public Date getCreationTime() { return creationTime; } NewAssetEvent();  NewAssetEvent(NewAssetEvent template); Date getCreationTime(); void setCreationTime(Date creationTime); @Override String toString();  }### Answer:
@Test public void testNullObject() { NewAssetEvent nullObject = new NewAssetEvent(); assertTrue(nullObject.getEventType() == null); assertTrue(nullObject.getCreationTime() == null); assertTrue(nullObject.getAsset() == null); nullObject = new NewAssetEvent(null); assertTrue(nullObject.getEventType() == null); assertTrue(nullObject.getCreationTime() == null); assertTrue(nullObject.getAsset() == null); }