code: @Override
      public List<Object> getContextValues(final String label) {
          final List<Object> values = new ArrayList<>();
          for (final Pair<String, Object> pair : contextValues) {
              if (StringUtils.equals(label, pair.getKey())) {
                  values.add(pair.getValue());
              }
          }
          return values;
      }
docs: {@inheritDoc}