code: @Override
      public List<GroupDef> getGroups() {
          List<GroupDef> groups = new ArrayList<GroupDef>();
          for (Node group : model.get("group")) {
              groups.add(new GroupDefImpl(getDescriptorName(), model, group));
          }
          return groups;
      }
docs: /* (non-Javadoc)
  @see org.jboss.arquillian.impl.configuration.api.ArquillianDescriptor#getGroups()