docs: private static void sendCrashSNMPTrap(String msg) {
          if (msg == null || msg.trim().isEmpty()) {
              return;
          }
          VoltDBInterface vdbInstance = instance();
          if (vdbInstance == null) {
              return;
          }
          SnmpTrapSender snmp = vdbInstance.getSnmpTrapSender();
          if (snmp == null) {
              return;
          }
          try {
              snmp.crash(msg);
          } catch (Throwable t) {
              VoltLogger log = new VoltLogger("HOST");
              log.warn("failed to issue a crash SNMP trap", t);
          }
      }