code: public boolean setActiveWithExtJS() {
          String baseTabPath = "//*[" + getPathBuilder().getBasePath() + "]";
          WebLocator tabElement = new WebLocator(getPathBuilder().getContainer()).setElPath(baseTabPath);
          String id = tabElement.getAttributeId();
          String path = "//*[@id='" + id + "']//*[contains(@class, 'x-tab-strip-inner')]";
          int tabIndex = getTabIndex(getPathBuilder().getText(), path);
          String script = "return Ext.getCmp('" + id + "').setActiveTab(" + tabIndex + ");";
          LOGGER.warn("force TabPanel setActive with js: " + script);
          WebLocatorUtils.doExecuteScript(script);
          return true;
      }
docs: TO Be used in extreme cases when simple {@link #setActive()} is not working
  
  @return true or false