Liberty Data Base Connectivity is a JDBC driver that provides vendor-independent database access. With LDBC, applications will just work on all major databases without source code changes. It is based on ANSI SQL and JDBC. It is very easy to use and learn, small and fast, and based on standards.
SwitchRMI is a framework for remote method invocation from Java that allows the client to choose from one of several RMI protocols. Objects can be made available over a number of transports; HTTP and SMTP are implemented. Any object vended can respond to an RMI request in any one of the supported protocols. Clients and servers can interact with third party implementations of supported protocols. New protocols and transports can be plugged in to the framework at runtime.
Java DIME Library implements Direct Internet Message Encapsulation (DIME), which is a lightweight binary encapsulation format that can be used to encapsulate multiple payloads of arbitrary types and sizes into a single message. DIME is ideal for incorporating binary attachments into any XML-based protocol. The library fully supports the latest DIME specifications.
The Runabout is an extension of the Java libraries that adds two-argument multi-dispatch to Java without changing the language or the VM. It uses reflection to find visit methods, which are invoked using dynamically generated and loaded code. The Runabout does not need a special compiler or changes to Java's syntax. Dispatch with the Runabout is fairly fast, typically a factor of two to ten times slower than double dispatch. The Runabout is useful since it can help to make code faster and more readable. For example, a sequence of instanceof tests is a clear sign that a Runabout should be used instead.