Spring is a lightweight Java/J2EE application framework based on code published in "Expert One-on-One J2EE Design and Development" by Rod Johnson. It includes powerful JavaBeans-based configuration management applying Inversion-of-Control principles, a generic abstraction layer for transaction management allowing for pluggable transaction managers, a JDBC abstraction layer, integration with Hibernate, JDO, Apache OJB, and iBATIS SQL Maps, AOP functionality, and a flexible MVC Web application framework with multiple view technologies. There is also a .NET port available.
Morph is a Java framework that eases the internal interoperability of an application. As information flows through an application, it undergoes multiple transformations. Morph provides a standard way to implement these transformations. In addition to providing a framework for performing transformations, Morph provides implementations of many common transformations. It has been built from the ground up for flexibility and extensibility, and it integrates seamlessly with dependency injection frameworks such as Spring, PicoContainer, and Hivemind.
Ammentos is a lightweight persistence framework for JDK 5. It does not require any installation nor configuration; just put a jar file into your classpath and start writing code. It is designed so that your persistence code will be dramatically short and so that you won't have to spend a lot of time to learn how to use it. It is about 72Kb large and it does not require any external library except for your database JDBC driver. You can use it in desktop applications or in server-based environments.
XMLImportDB provides an easy-to-use interface that allows developers to create a baseline database environment that can be embedded in their source code for use in jUnit test cases. The database environment can be described in a separate file in the same package as the tests, in a hard coded string in the test case classes, or in any other location for which a java.io.Reader can be created at runtime.
Native XmlDB Query Daemon is a client-server version of the Sleepycat native XML database deployed as an Apache module. The client is a pure Java API, supporting XQuery, XPath, and an Xml:DB API layer. It comes with a graphical admin console. Server binaries are provided for Linux x86 and x86-AMD64; for other platforms, compile from source.
LibMySequoia provides an alternative library for MySQL C client library (libmysqlclient.so) to benefit from the Sequoia high availability and performance scalability clustering solution. Native MySQL client programs can use the Sequoia clustering solution without changing any line of code in the application. The benefit of this solution is that native C applications, PHP, Perl, and Python programs using the MySQL C API interface now can transparently connect to a Sequoia cluster.