When debugging it becomes necessary to dump the thread state of the application, this is usually to find a deadlock, lock contention or leaking connections.

Web Application Description Language (WADL) is a machine process-able XML description of HTTP-based Web applications, such as REST web services.

Change data capture (CDC) encompasses database design patterns to keep track of changed data and perform actions with it.

A security manager is an object that defines a security policy for an application. This policy specifies actions that are unsafe or sensitive. Any actions not allowed by the security policy cause a SecurityException to be thrown. An application can also query its security manager to discover which actions are allowed.

Error correction is the detection of errors and reconstruction of the original, error-free data.

MapServer is an Open Source geographic data rendering engine written in C, designed for fast display of dynamic maps on the Internet. Beyond browsing GIS data, MapServer allows you create “geographic image maps”, that is, maps that can direct users to content.

Blueprint is a CSS framework, which aims to cut down on your development time. It gives you a solid foundation to build your project on top of, with an easy-to-use grid, sensible typography, useful plugins, and even a stylesheet for printing.