DefaultSpeculator.class,
Speculator.class);
Constructor<? extends Speculator> speculatorConstructor
= speculatorClass.getConstructor
(Configuration.class, AppContext.class);
Speculator result = speculatorConstructor.newInstance(conf, context);
return result;
} catch (InstantiationException ex) {
LOG.error("Can't make a speculator -- check "
+ MRJobConfig.MR_AM_JOB_SPECULATOR, ex);