Geronimo is a Java EE 5 application server which is developed by the
Apache Software Foundation and it is under the Apache Software License 2.0.
CHARVA is a Java framework for presenting a "graphical" user interface,
composed of elements such as windows, dialogs, menus, textfields and
buttons, on a traditional character-cell ASCII terminal.
It has an API based on that of "Swing" (a.k.a. the Java Foundation Classes).
DrJava is a lightweight development environment for writing Java programs.
It is designed primarily for students, providing an intuitive interface
and the ability to interactively evaluate Java code. It also includes
powerful features for more advanced users. DrJava is available for free
under the DrJava Open Source License, and it is under active development
by the JavaPLT group at Rice University.
JTransforms is the first, open source, multithreaded FFT library
written in pure Java. Currently, four types of transforms are
available: Discrete Fourier Transform (DFT), Discrete Cosine Transform
(DCT), Discrete Sine Transform (DST) and Discrete Hartley Transform
(DHT). The code is derived from General Purpose FFT Package written
by Takuya Ooura and from Java FFTPack written by Baoshe Zhang.
Pauker is a Java program for flashcard learning based on the Leitner system.
XStream is a simple library to serialize Java objects
to XML and back again.
dnsjava is an implementation of DNS in Java. It supports all defined record
types (including the DNSSEC types), and unknown types. It can be used for
queries, zone transfers, and dynamic updates. It includes a cache which can be
used by clients, and a minimal implementation of a server. It supports TSIG
authenticated messages, partial DNSSEC verification, and EDNS0.
dnsjava provides functionality above and beyond that of the InetAddress class.
Since it is written in pure Java, dnsjava is fully threadable, and in many
cases is faster than using InetAddress.
dnsjava provides both high and low level access to DNS. The high level
functions perform queries for records of a given name, type, and class, and
return an array of records. There is also a clone of InetAddress, which is even
simpler. A cache is used to reduce the number of DNS queries sent. The low
level functions allow direct manipulation of DNS messages and records, as well
as allowing additional resolver properties to be set.
JIIC is a Java-based implementation for creating CD-ROM filesystem
images according to ISO 9660, also known as ECMA-119. It provides
support for the El Torito, Joliet and Rock Ridge extensions.
OmegaT is a free translation memory application written in Java.
It does not translate for you, but help you during the translation process.
This tool is intended for professional translators.
JRuby is a 100% Java implementation of the Ruby programming language.
It is Ruby for the JVM, offering high performance, real threading and
support for vast array of libraries.
JRuby is highly compatible with Ruby 1.8.7 & 1.9.2 (both versions in
single install).