InfraRED
- A low overhead, non-intrusive performance monitoring tool for J2EE applications. [Open source, Apache License]
- http://infrared.sourceforge.net/versions/latest/

JUnitEE
- A unit testing framework providing a TestRunner which outputs HTML and a servlet which can be used as an entry point to test cases. JUnit based. [Open Source, GPL]
- http://www.junitee.org/

Sygel: Wonder Machine
- Generates J2EE applications from UML domain models and existing database schemas. [Commercial]
- http://www.sygel.com/

Bugkilla
- A set of alpha state tools for functional acceptance testing of J2EE Web applications. Specification and execution of tests will be automated for both the web front end and business logic layer. [Open Source, LGPL]
- http://bugkilla.sourceforge.net/

RapidJ
- A commercial Java code generator that produces customisable J2EE web applications based on popular technologies such as Struts, Java Server Pages (JSP) and Java Database Connectivity (JDBC).
- http://www.codecanvas.com.au/rapidj/

Java Web Services Developer Pack (Java WSDP)
- A free integrated toolkit to build, test and deploy XML applications, Web services, and Web applications with the latest Web service technologies and standards implementations.
- http://java.sun.com/webservices/jwsdp/

zeroCode
- An application platform that enables rapid construction of pure-Java web applications, using a metadata-driven, visual paradigm. [Commercial]
- http://www.zerocode.com/

OpenEnterpriseX
- A free, open source, comprehensive and standards-based Java/J2EE development suite distribution for building enterprise application.
- http://www.openenterprisex.org

Project WONDER
- A collection of frameworks and tools for the WebObjects application server.
- http://wonder.sourceforge.net/

JPlates
- Object-oriented template processing language. Includes documentation and beta participation information.
- http://home.comcast.net/~daniel.s.jacobs/jplates.com/

eKnowlogie ColdFusion to J2EE Migrator
- a software transformation tool to automatically migrate ColdFusion applications to Java J2EE. It will re-architect the original monolithic ColdFusion application into a modular Model-View-Controller (MVC) application framework using Struts and JSP.
- http://www.eknowlogie.com/ColdFusionToJSP.html

MyEclipse
- A Eclipse-based J2EE development platform. [Shareware]
- http://www.myeclipseide.com/

JeeWiz!
- End-to-end (i.e. model-to-code) Java and J2EE Application Development Environment for the enterprise. [Commercial]
- http://www.jeewiz.com/

jVantage
- A J2EE rapid application development (RAD) tool for creating web-enabled J2EE enterprise applications visually, on-the-fly, interactively, using a web browser as a development environment.
- http://www.jvantage.com/

StrutsWizard
- BW*Wizard for Struts (aka StrutsWizard) builds database transactions using templates based on the open-source Jakarta Struts framework. [Shareware]
- http://www.strutswizard.com/

Netspective
- The platform for J2EE and Web Services integration. [Commercial]
- http://www.netspective.com

Scottit
- A web based performance monitoring and administration console for both developers and administrators working with Resin application server.
- http://www.ustobe.com/scottit/