preRunChecks(myReducer);
initDistributedCache();
final OutputCollectable<K2, V2> outputCollectable = mockOutputCreator
.createMapredOutputCollectable(getConfiguration(),
getOutputSerializationConfiguration());
final MockReporter reporter = new MockReporter(
MockReporter.ReporterType.Reducer, getCounters());
ReflectionUtils.setConf(myReducer, new JobConf(getConfiguration()));
for (Pair<K1, List<V1>> kv : inputs) {