JBup (Java Backup) aims to become a robust, professional backup tool. It creates a mirror of the current file set and compares it to the previous version. The deltas are saved and the previous mirror is removed. By applying the increments in reverse time order, complete backups of arbitrary versions can be created. It is an Ant task and can therefore be used in Ant scripts that perform additional backup actions, such as archiving directories or sending emails.
OpenVPS is a set of software built on top of the Linux VServer aimed specifically at Web Hosting. It is not another set of kernel patches, but a set of scripts to create virtual servers, collect resource utilization information, and provide an interface to the customer as well as the administrator.
Drools is a Rete-based rules engine written in Java, but able to run on Java and .Net. it is designed to allow pluggeable language implementations. Currently, rules can be written in Java, Python, and Groovy. It also enables domain-specific languages (DSLs) via XML using a schema defined for your problem domain. DSLs consist of XML elements and attributes that represent the problem domain. An XML authoring tool provides a semi-rapid development environment with a drag and drop type interface based on the provided schema.
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.
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.
The svnmailer is a tool that is usually called by a subversion hook to submit commit notifications in various ways (at the moment: mail via SMTP or a pipe to a sendmail like program, news via NNTP, or CIA live tracker notification via XML-RPC). It is derived from the original mailer.py distributed with subversion, but should be much more consistent, more extensible, and have many more features.
Nennius is an object-oriented application engine. Although initially intended to be a time and expense tracking tool, it has since been improved upon to support a wide array of data types and relationships. It offers the ability to run multiple, concurrent Web applications from a single Nennius engine. Each Web application is fully customizable and can easily be modified to fit almost any existing business model.