Castor is an open source data binding framework for Java[tm]. It’s the shortest path between Java objects, XML documents and relational tables.

The core XML data binding framework with support for marshalling Java objects to and unmarshalling from XML documents.

Java 1.5 Runtime Signatures excluding vendor specific implementation classes.

A Common Cookbook for Java

A plugin that wraps the keytool program bundled with Java SDK. Allows to manipulate keystores.

This plugin is for processing IDL files into java sources.

Translates Java 5 classes to be compatible with J2SE 1.4 using Retrotranslator.

SonarQube Java Properties Analyzer :: Frontend

FindBugs is a program that uses static analysis to look for bugs in Java code. It can detect a variety of common coding mistakes, including thread synchronization problems, misuse of API methods.

Checkstyle is a code analyser to help programmers write Java code that adheres to a coding standard.