code: public VoltTable[] run(SystemProcedureExecutionContext ctx,
                             String selector) throws VoltAbortException
      {
          VoltDB.crashLocalVoltDB("This should never be called.", false, null);
          return null;
      }
docs: Returns the cluster info requested by the provided selector
  @param ctx          Internal. Not exposed to the end-user.
  @param selector     Selector requested
  @return             The property/value table for the provided selector
  @throws VoltAbortException