FST: fast java serialization drop in-replacement
a fast, scalable, multi-language and extensible build system
A fast build system that encourages the creation of small, reusable modules over a variety of platforms and languages.
A super fast build tool for Android, an alternative to Instant Run
fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists and queues.
A fast JSON parser/generator for Java.
A fast way to build ElasticSearch query string, even without writing implement code.