SPIZD stands for Stress Probing Invasive Zap Destructor; it's a command-line stress test tool used to determine how many simultaneous (concurrent) connections servers can handle. Protocols: http, pop3, pop3s, imap, imaps, smtp, smtps, ssh, radius.
Retic is a free EAI Server written in Jython (Java).
It permits to execute adaptors composed of sources, pipes (transformations) and sinks.
Connectivity with : JMS,HTTP,SOAP,UDDI,FTP,Xindice,JDBC,Jabber,SMTP...
XML Support : XSLT, Xpath.
Has GUI for