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 (www.fixprotocol.org).
Several new features are included in the 1.2.0 release along with several bug fixes. An upgrade from previous versions is recommended. See the change log for more details.