The Codehaus

Codehaus.org has 8 URLs listed in 8 Dmoz categories.

Qdox
A small footprint parser for extracting class/interface/method definitions from source files complete with JavaDoc @tags. It is designed to be used by active code generators or documentation tools. [Open source, Apache Software License]
http://qdox.codehaus.org/
Top/Computers/Programming/Languages/Java/Class_Libraries/Text_Processing

jMock
A library for testing Java code using mock objects. [Open source]
http://jmock.codehaus.org/
Top/Computers/Programming/Languages/Java/Development_Tools/Performance_and_Testing

XStream - About XStream
XStream is a simple library to serialize objects to XML and back again. One advantage is ease of use. [Open Source]
http://xstream.codehaus.org
Top/Computers/Programming/Languages/Java/Enterprise_Edition/Libraries_and_Frameworks

AspectWerkz
Dynamic, lightweight and high-performing AOP framework for Java; uses bytecode modification to weave classes at project build-, class-load-, or run-time. [Open Source, LGPL]
http://aspectwerkz.codehaus.org/
Top/Computers/Programming/Languages/Java/Extensions/Aspect-Oriented

Groovy
Object-oriented language alternative for Java platform; Java-like syntax, dynamically compiles to JVM bytecodes; compiler can emit bytecodes, or can be used dynamically for scripting; has features not in standard Java, from Python, Ruby, Smalltalk. Open
http://groovy.codehaus.org/
Top/Computers/Programming/Languages/Java/Extensions/Groovy

Boo
New object-oriented statically typed language for Common Language Infrastructure (.NET, Mono), Python inspired syntax, focus on language and compiler extensibility.
http://boo.codehaus.org/
Top/Computers/Programming/Languages/Python/Implementations

JRuby
Ruby implemented in pure Java: newer Ruby interpreter done in Java, most built-in Ruby classes, supports interacting with and defining Java classes in Ruby, Bean Scripting Framework (BSF); news, downloads, FAQ, tutorials, limits, credits. Open source CPL
http://jruby.codehaus.org/
Top/Computers/Programming/Languages/Ruby/Java

PL-J
A stored procedure platform that provides Java and other object oriented language integration.
http://plj.codehaus.org/
Top/Computers/Software/Databases/PostgreSQL