@Override
    public void schedule(Runnable childStatement) {
      executor.submit(childStatement);
    }
Class to run Parameterized test in parallel.
Source: http://hwellmann.blogspot.hu/2009/12/running-parameterized-junit-tests-in.html
itests/util/src/main/java/org/apache/hive/beeline/Parallelized.java