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JDBM is a transactional persistence engine for Java. It aims to be for Java what GDBM is for other languages: a fast, simple persistence engine. You can use it to store a mix of objects and BLOBs, and all updates are done in a transactionally safe manner. JDBM also provides scalable data structures, such as HTree and B+Tree, to support persistence of large object collections. JDBM2 provides HashMap and TreeMap which are backed by disk storage. It is very easy and fast way to persist your data. JDBM2 also have minimal hardware requirements and is highly embeddable.

SciMark 2.0 is a Java benchmark for scientific and numerical computing. It measures several computational kernels and reports a composite score in approximate Mflops (Millions of floating point operations per second). Results of this benchmark can be sent to pozo@nist.gov and are listed at <http://math.nist.gov/cgi-bin/ScimarkSummary>;.

PMD scans Java source code and looks for potential problems like: * Possible bugs - empty try/catch/finally/switch statements * Dead code - unused local variables, parameters and private methods * Suboptimal code - wasteful String/StringBuffer usage * Overcomplicated expressions - unnecessary if statements, for loops that could be while loops * Duplicate code - copied/pasted code means copied/pasted bugs

Naval Robocode is a programming game, where the goal is to develop a robot battle ship to battle against other ships in Java or .NET. The robot battles are running in real-time and on-screen. Naval Robocode is based on Robocode v1.9.2.1.

Robocode is a programming game, where the goal is to develop a robot battle tank to battle against other tanks in Java or .NET. The robot battles are running in real-time and on-screen. The motto of Robocode is: Build the best, destroy the rest!

The LDAP Browser/Editor provides a user-friendly Windows Explorer-like interface to LDAP directories with tightly integrated browsing and editing capabilities. It is entirely written in Java with the help of the JFC (SwingSet) and JNDI class libraries. It connects to LDAP v2 and v3 servers.

The Apache PDFBox library is an open source Java tool for working with PDF documents. This project allows creation of new PDF documents, manipulation of existing documents and the ability to extract content from documents. Apache PDFBox also includes several command line utilities. Features: - Text extraction - Merging & Splitting - Forms Filling - PDF/A Validation - PDF Printing - PDF to Image Conversion - PDF Creation - PDF Signing

Jericho HTML Parser is a simple but powerful java library allowing analysis and manipulation of parts of an HTML document, including some common server-side tags, while reproducing verbatim any unrecognised or invalid HTML. It also provides high-level HTML form manipulation functions.

NoScript provides extra protection for your Mozilla/Firefox or Flock browser: this extension allows JavaScript and Java execution only for trusted domains of your choice (e.g. your home-banking web site). This whitelist based pre-emptive script blocking approach prevents exploitation of security vulnerabilities (known and even not known yet!) with no loss of functionality...

In a nutshell Jenkins CI is the leading open-source continuous integration server. Built with Java, it provides over 300 plugins to support building and testing virtually any project.