code: @Override
      public boolean setActive() {
          WebLocator inactiveTab = getTitleInactiveEl().setExcludeClasses("x-tab-active");
          boolean activated = isActive() || inactiveTab.click();
          if (activated) {
              log.info("setActive : " + toString());
          }
          return activated;
      }
docs: After the tab is set to active
  
  @return true or false