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Duplicated source code blocks can harm maintainability of software systems. Duplo is a tool to find duplicated code blocks in large C/C++/Java systems.

Clone Digger aims to detect similar code in Python and Java programs. The synonyms for the term "similar code" are "clone" and "duplicate code".

Commons Math is a library of lightweight, self-contained mathematics and statistics components addressing the most common problems not available in the Java programming language or Commons Lang.

Commons Math is a library of lightweight, self-contained mathematics and statistics components addressing the most common problems not available in the Java programming language or Commons Lang.

[ excerpt from developer's web site ] Utilizado para preenchimento da declaracao para envio via Internet, para microcomputador com maquina virtual Java instalada.

This is a Java SSH Client, which has a whole bunch of features, but supports SSH Protocol 1 connections only. This version does not depend on the Java Development Kit, since it is the binary version, which runs out-of-the-box in webbrowsers that support Java. A minimal sample HTML page is installed as well. If you want to use the client from shell, you have to install the JDK first (${PORTSDIR}/java/jdk/). A commercial version for SSH-2 is available here: (This version is no longer supported)

Source-highlight is a simple program that, given a source C/C++, Prolog, Perl, PHP3, Python or Java file, produces an html source with syntax highlighting.

JLine is a Java library for handling console input. It is similar in functionality to BSD editline and GNU readline. People familiar with the readline/editline capabilities for modern shells (such as bash and tcsh) will find most of the command editing features of JLine to be familiar. JLine is distributed under the BSD license, meaning that you are completely free to redistribute, modify, or sell it with almost no restrictions. API documentation can be found in the apidocs directory. You can use the jline.ConsoleRunner application to set up the system input stream and continue on the launch another program. For example, to use JLine as the input handler for the popular BeanShell console application, you can run: java jline.ConsoleRunner bsh.Interpreter

OpenJUMP is an open source GIS software written in Java. It is based on JUMP GIS by Vivid Solutions. It's features include: * It is a Vector GIS that can read rasters as well. * OpenJUMP is known to work on Windows, Linux and Mac platforms, but should work on any operating system that runs Java 1.5 or later. * It is not just another free demo viewer, but you can edit, save, analyze etc. with JUMP / OpenJUMP. * It works, even with medium size datasets, and with professional touch. * It provides a GIS API with a flexible plugin structure, so that new features are relatively easy to develope around the sound mapping platform. * It utilises standards like GML, WMS and WFS. * It is already translated in English, Finnish, French, German, Italian, Portugese and Spanish. The translation in other languages is in progress. Extensions and plugins can be found at

Log4J, a fast and flexible logging library for Java. Log4J is an open source library based on the work of many authors. It allows the developer to control which log statements are output with arbitrary granularity. It is fully configurable at runtime using external configuration files. Best of all, Log4J has a gentle learning curve. Beware: judging from user feedback, it is also quite addictive.