libmbassador-java - 1.3.1-1 main

MBassador is a light-weight, high-performance event bus implementing the
publish subscribe pattern. It is designed for ease of use and aims to be
feature rich and extensible while preserving resource efficiency and
performance.
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The core of MBassador is built around a custom data structure that provides
non-blocking reads and minimized lock contention for writes such that
performance degradation of concurrent read/write access is minimal.