NetBeans IDE 6.5 Final

"A free, open-source Integrated Development Environment for software developers. You get all the tools you need to create professional desktop, enterprise, web, and mobile applications with the Java language, C/C++, and even dynamic languages such as PHP, JavaScript, Groovy, and Ruby. NetBeans IDE is easy to install and use straight out of the box and runs on many platforms including Windows, Linux, Mac OS X and Solaris.

The NetBeans IDE 6.5 provides several new features and enhancements, such as rich PHP, JavaScript and Ajax editing features, improved support for using the Hibernate web framework and the Java Persistence API, and tighter GlassFish v3 and MySQL integration."

GlassFish ESB Release Candidate 1

This is the most stable recent distribution of OpenESB. It contains a subset of the components. This build was tested and no critical issues were found.

A short explanation, as some doubts are still hanging around: GlassFish ESB is the stable release of the OpenESB opensource code-base. OpenESB is the community edition, where you can find all the components and even the untested ones. GlassFish ESB is commercially supported by Sun, components coming from OpenESB are incrementally added to the GlassFish ESB distribution as far as they are tested by Sun QA and proven to be stable enough. GlassFish ESB itself is still opensource, you can freely download and use it but additionally you can opt for commercial support and professional services from Sun and its partners.

GlassFish ESB distribution = GlassFish v2 JEE5 Application Server + Netbeans 6.1 IDE + OpenESB