joeSNMP

mibble

Mibble is an open-source SNMP MIB parser library for Java.

Westhawk's SNMP

An open-sourced Java library that can be used for SNMP v1/v2c/v3. Supports traps, authentication and privacy. As authentication protocols it offers MD5 and SHA1

SNMP4J-Agent

SNMP4J-Agent is a Java™ API on top of the core SNMP4J API for the development of SNMP agents (command responders)

SNMP4J

SNMP4J is an enterprise class, free open source, and state-of-the-art SNMP v1/2c/v3 implementation for Java™