private void addAuxJarsToSet(Set<String> auxJarSet, String auxJars, String delimiter) {
    if (StringUtils.isNotEmpty(auxJars)) {
      // TODO: transitive dependencies warning?
      String[] jarPaths = auxJars.split(delimiter);
      for (String jarPath : jarPaths) {
        if (!jarPath.isEmpty()) {
          auxJarSet.add(jarPath);
        }
      }
    }
  }
Copy auxiliary jars for the tarball.
llap-server/src/java/org/apache/hadoop/hive/llap/cli/service/AsyncTaskCopyAuxJars.java