ExecutorServiceHelper { public static ExecutorServiceHelper getInstance() { return SingletonHolder.INSTANCE; } private  ExecutorServiceHelper(); static ExecutorServiceHelper getInstance(); int getExecutorPoolSize(); int getLargeJobExecutorPoolSize(); double getLargeJobPercentage(); Map getTimeoutValues(); boolean checkExecutorTaskIsLarge(int targetListCount); static void outputCompleteException(Exception e); static String getFormattedExceptionInfo(Exception ex, NhinTargetSystemType target, String serviceName);  }
@Test public void testGetInstance() { ExecutorServiceHelper result = ExecutorServiceHelper.getInstance(); assertNotNull(result); }