code: @When("^I create the zNode '(.+?)'( with content '(.+?)')? which (IS|IS NOT) ephemeral$")
      public void createZNode(String path, String foo, String content, boolean ephemeral) throws Exception {
          if (content != null) {
              commonspec.getZookeeperSecClient().zCreate(path, content, ephemeral);
          } else {
              commonspec.getZookeeperSecClient().zCreate(path, ephemeral);
          }
      }
docs: Create zPath and domcument
  
  @param path      path at zookeeper
  @param foo       a dummy match group
  @param content   if it has content it should be defined
  @param ephemeral if it's created as ephemeral or not