We are building OSGi (particularly using Apache Karaf on Equinox) applications that need to be delivered into customer environments that commonly employ SNMP based monitoring tools. Can anyone suggest a cost effective (Open source is ideal, but has to use a license that we can ship as part of our commercial offering) framework/package that will support SNMP? Bonus points for avoiding SNMP API bleeding into the applications bundles we deploy (I'd rather have our developers define JMX MBeans instead). Our customers may dictate the monitoring system we need to plug into for deployment, but we use Nagios for internal testing, so further points for nagios-friendly solutions.