R2build system is a tool/framework to establish your daily build(or nightly build, or build automation, or continuous integration system) in a very easy way . It includes, but is not limited to, plug-ins for email notification, FTP, various installer packaging tool, Java/C++/Ant/Nant/.Net/Delphi/C++Builder, and various source control tools.

Execute Query is an operating system independent database utility written entirely in Java. Using the power provided by Java Database Connectivity (JDBC), Execute Query provides the means by which to manipulate almost any database from simple queries to table creation and import/export of an entire schema's data.

Source code documentation generator tool. Doxygen is a documentation system for C++, C, Java, Objective-C, Python, IDL (Corba and Microsoft flavors) and to some extent PHP, C#, and D.

The universal freeware editor, useful for people who:
* work with plain text - the editor has a wealth of formatting functions, including a spell checker
* create web pages - as a web authoring editor, PSPad contains many unique tools that save your time
* want to use a good IDE for their compiler - PSPad catches and parses compiler output, integrates external help files, compares versions and much more...

There is no complex installation process, PSPad is ready to work immediately without requiring customization. The editor supports many file types and languages, with syntax highlighting. There are macros, clip files and templates to automate repetative tasks. Integrated HEX Editor, Project support, FTP Client, Macro Recorder, File Search/Replace, Code Explorer, Code page conversion... these are just some of the many features that PSPad offers.

JavaChecker is a static analyzer of Java source code. This tool allows to detect code defects, such as inaccurate exceptions handling, style defects, violations of standard usage contracts, inaccurate resource usage and so on. Also it is possible to extend JavaChecker by writing own rules in Java or as set of tern rewriting rules.

Maven is a software project management and comprehension tool. Based on the concept of a project object model (POM), Maven can manage a project's build, reporting and documentation from a central piece of information.

EMMA is an open-source toolkit for measuring and reporting Java code coverage. EMMA distinguishes itself from other tools by going after a unique feature combination: support for large-scale enterprise software development while keeping individual developer's work fast and iterative.

JExcel provides an effective way to integrate Microsoft Excel into Swing applications.
Its functionality can be divided into the following parts:

* Automation of an Excel application, workbooks, worksheets, etc. This is the core functionality of JExcel library which provides access to Excel applications, workbooks, worksheets, ranges and cells.
* Embedding a workbook in a Java Swing application. JExcel provides the JWorkbook component that allows you to embed an Excel workbook in a Java Swing application as an ordinary Swing component.
* Handling Excel workbook or worksheet events. Workbook and Worksheet JExcel classes allow adding listeners for the events generated by a workbook or worksheet as well as event handlers to affect the application behavior.
* Working with native peers. Native peers are provided to allow you to add custom functionality based on JExcel.

A free UML tool. 1)Support UML 2.xx; 2)Used in Windows(2000/XP/Vista); 3)Can generate source code /CHM from model, or parse source code into model by JavaScript; 4)Support 12 kinds of diagram except object diagram; 5)Very nice, simple, and easy to use

JGiven is a developer-centric Behavior-Driven Development (BDD) tool for Java. Scenarios are written in plain Java with a fluent Java API - Neither text files, nor Groovy is needed. Method names are parsed at runtime and define the scenario text - No duplicate text in annotations is needed. Scenarios are executed by either JUnit or TestNG - No extra test runner is needed, thus JGiven works with all existing IDEs and build tools for Java out-of-the-box