public void setupExecutors() throws ExecutorManagerException {
    final ImmutableSet<Executor> newExecutors = loadExecutors();
    if (newExecutors.isEmpty()) {
      final String error = "No active executors found";
      logger.error(error);
      throw new ExecutorManagerException(error);
    } else {
      this.activeExecutors = newExecutors;
    }
  }
public void setupExecutors ( ) throws ExecutorManagerException { final ImmutableSet < Executor > newExecutors = loadExecutors ( ) ; if ( newExecutors . isEmpty ( ) ) { final String error = "No active executors found" ; logger . error ( error ) ; throw new ExecutorManagerException ( error ) ; } else { this . activeExecutors = newExecutors ; } }
Loads executors. Can be also used to reload executors if there have been changes in the DB.

@throws ExecutorManagerException if no active executors are found or if loading executors
fails.