### Question:
Vendor implements com.iabtcf.extras.gvl.Vendor { @Override public Optional<Overflow> getOverflow() { return Optional.ofNullable(overflow); }  @Override int getId(); @Override String getName(); @Override List<Integer> getPurposes(); @Override List<Integer> getLegIntPurposes(); @Override List<Integer> getFlexiblePurposes(); @Override List<Integer> getSpecialPurposes(); @Override List<Integer> getFeatures(); @Override List<Integer> getSpecialFeatures(); @Override String getPolicyUrl(); @Override Optional<Instant> getDeletedDate(); @Override Optional<Overflow> getOverflow(); @Override boolean isDeleted();  }### Answer:
@Test public void testGetOverflow() { Assert.assertNotNull(vendorEight.getOverflow()); }