aAdditionalParams.put(PARAM_UIMA_CONTEXT, getUimaContextAdmin());
// create pool (REMOVE pool size parameter from map so we don't try to
// fill pool with other MultiprocessingAnalysisEngines!)
aAdditionalParams.remove(PARAM_NUM_SIMULTANEOUS_REQUESTS);
mPool = new AnalysisEnginePool("", poolSize, aSpecifier, aAdditionalParams);
// update metadata from pool (this gets the merged type system for aggregates)
this.setMetaData(mPool.getMetaData());
return true;
}