Scouter is open source APM (Application Performance Management) tool
Apache HertzBeat(incubating) is a real-time monitoring system
A high performance Java RPC framework
High performance Java APM. Powered by ASM
Visibility into servers, applications, and infrastructure
Pure Java FTP server. Free portable cross-platform multi-threaded.
AS2 1.1 server implementation in Java
Amateur Radio AX.25 chat and PBBS program using Linux's AX.25 stack
Pure Java TFTP server.
LSJ-Server-Terra (Java Multipurpose Sever connected with MariaDB)
Open source cross-platform Java Visual Traceroute
A P2P filesharing client which connects to the Gnutella network.
Ribbon is an inter process communication library
A software that implements AS2 protocol to send and receive messages
Pure Java NTP server.
A modern graphical SSH client
Java SSH API
inspectIT is the leading Open Source APM
Database monitoring agent for zabbix
The open source grid computing solution
Multi-protocol server written in Java
An eclipse plugin for the openCONFIGURATOR configuration tool
Provides situational awareness of Industrial Control Systems (ICS)
SIP Video Multiconference Media Server with WebRTC support.