LibJAD is collection of miscellaneous routines for a variety of purposes. This library includes functions of reading ini style files, multi-threaded programming, finding the number of processors available on the system, computing combinations and permutations, base64 and URL encoding, and working with ASN1 and PGM files.
Prefixed Properites extends java.util.Properties with the advantage that it supports filtering of properties by a prefix or set environment. You can have cascading environments like a staging level, a host, a group, a service, a component, and many more. Use them all together within one configuration file, and define defaults for any key on any environment level. Use XML, properties, and JSON files to load and store your configuration. You can also change the configuration on the fly on a request-dependent level. Prefixed Properties can be used on a standalone basis, or you can use it within your SpringContext.
Hydro is an independent implementation of ICE, the object-oriented RPC protocol by ZeroC, for the O'Caml programming language. Hydro (like ICE) allows you to bridge language barriers by letting components written in different programming languages communicate with each other. ZeroC's ICE product currently includes implementations for C++, Java, C#, Python, Ruby, VB, and PHP. Hydro adds support for O'Caml. Hydro includes an asynchronous runtime and a generator called hydrogen.