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QuickFIX/J is an 100% Java implementation of the popular QuickFIX open source FIX protocol engine. QuickFIX/J features include support for FIX protocol versions 4.0 through 4.4 and 5.0/FIXT1.1 (www.fixprotocol.org).
Please note that the SourceForge SVN repo is read-only. Current repo can be found here: https://github.com/quickfix-j