Immutables allows you to embrace immutablity to tackle complexity and concurrency challenges. To get the benefits of immutability in Java, there's an annotation processor to easily create simple and consistent value objects. You can think of it as Guava's Immutable Collections but for regular objects. It includes support for JSON marshaling, MongoDB repositories, and JAX-RS.
Canumb aims to crunch data on various forms and turn them into something meaningful. A variety of inputs are currently supported, such as different number base conversions (decimal to hexadecimal, binary to hexadecimal, octal to decimal, etc.) and various encoded formats (a base64 encoder decoder and a URI encoder decoder). It's built to allow for extension when the future demands other input formats be crunched.
Ada Util is a collection of utility packages for Ada 2005. Several packages are inspired from Java packages and libraries (Java properties, log4j, listeners, streams). The library provides a logging framework, a serialization/deserialization framework for XML, JSON, CSV, an Ada beans framework, a composition stream framework (raw, files, buffers, pipes, sockets), several concurrency tools (reference counters, counters, pools, fifos, arrays), a REST client framework, and more.
Flora is a minimalistic but very powerful NoSQL database. It is easy to understand with data readable by both humans and machines, schemaless, Lua-scriptable, remotely accessible through TCP, and portable. It is especially suited for A. I. tasks, and a longer-term goal is support for "natural language" queries.