public @NlsSafe String suggestGroupName() {
    int groupNumber = 1;
    group: while(true) {
      @NonNls String suggestedName = "buttonGroup" + groupNumber;
      // we don't have a project in snapshooter
      if (getModule() != null) {
        SuggestedNameInfo nameInfo =
          JavaCodeStyleManager.getInstance(getProject()).suggestVariableName(VariableKind.FIELD, suggestedName, null, null);
        suggestedName = nameInfo.names[0];
      }
      for(RadButtonGroup group: myButtonGroups) {
        if (group.getName().equals(suggestedName)) {
          groupNumber++;
          continue group;
        }
      }
      return suggestedName;
    }
  }
public @NlsSafe String suggestGroupName()