static <T extends MultiThreadedTest.Once>void runTestThreadsOnce(Class<T> cls,int threadCount){
  runTestThreads(cls,threadCount,300000000000L);
}

static < T extends MultiThreadedTest . Once > void runTestThreadsOnce ( Class < T > cls , int threadCount ) { runTestThreads ( cls , threadCount , 300000000000L ) ; }
instantiate and run the once each test with given threadcount .
