code: public static void createWar(LibertyServer server, String dir, String warName, boolean addWarResources, String jarName, boolean addJarResources,
                                   String... packageNames) throws Exception {
          addEarToServer(server, dir, null, false, warName, addWarResources, jarName, addJarResources, packageNames);
      }
docs: /*
  Helper method to create a war and placed it to the specified directory which is relative from /publish/servers/ directory.