TIBCO FTL Java API
I am the lead developer on the FTL Java API, currently in version 3.0. TIBCO FTL is a low latency messaging system. The primary FTL library is written in C, the Java API uses JNI to access to the C API. Using JNI has allowed FTL to achieve very high performance and very low latency, under 1 µsecond when using shared memory to communicate between processes on the same machine.