libGlass is a scalable set of components that can be used by applications to perform distributed computing. Applications are built by reusing the available components as needed. One of the major goals of Glass is to be a user-friendly framework, not only suitable for new applications, but also for legacy code. This is an important feature, as most available solutions for distributed computing require a substantial amount of rewrite of legacy code.
abiCloud is a cloud computing platform manager that allows you to easily deploy a private cloud infrastructure. One of the key features is the Web rich interface for managing the infrastructure. You can deploy a new service just dragging and dropping a virtual machine. It allows you to deploy instances over VirtualBox, VMware, KVM, and Xen. It features user management through ACL, infrastructure and network management, an appliance repository, and the ability to easily design virtual datacenters.
Athena Framework for Java is a full fledged enterprise object-relational mapping (ORM) framework that employs metadata as mapping configuration. It greatly simplifies Java Web application development by removing the requirement of manual mapping and manual database schema updating. In addition to features like Java object persistence, powerful EJBQL querying execution, and comprehensive code generation, Athena has built-in support for multi-tenancy, which enables developers to build cloud applications easily. Athena can be easily integrated with other libraries like Struts or Spring to provide full stacks of service.