code: @Override
      public List<Object> getAttributeValues(final String name) {
          final List<Object> values = this.attributes.get(name);
          if (values == null) {
              return null;
          }
  
          return values;
      }
docs: /* (non-Javadoc)
  @see org.jasig.services.persondir.IPersonAttributes#getAttributeValues(java.lang.String)