Oracle JDeveloper

Oracle JDeveloper 10g (10.1.3) preview is available now. Some of the new features are:

JSF Development including visual JSF pages development and integration with the ADF Faces rich set of JSF components. Also a visual page flow diagram and declarative editing of the jsf-config.xml file.

J2EE 1.4 support with:
EJB 2.1 development including toplink based CMP and XDoclet generation
JSP 2.0 visual editing, Expression Language builder, easy tld creation, prelude/Coda support
J2EE 1.4 Web Services support including JAX-RPC, WS-Security
JSR 88 and 77 (JMX) features

TopLink integration
Better integration with the new Toplink release for both POJO and CMP entity beans.
(The new Toplink release also offers XML to Java mapping and JCA support).

Revamped coding environment including new look and feel, enhanced coding editor, live code template, code assist and insight, J2SE 5.0 support, and many other goodies.
Comprehensive refactoring functionality including undo and integration with version control systems.
File versions view/merge locally
Better team development support

Open Source integration
Visual Struts page flow modeling
Greatly improved CVS support
Visual Ant script building and integrated Ant runner
Enhanced JUnit test case creations and integrated JUnit runner
XDoclet generation for EJB

Other features include
Advance XML development (XML from XSD, JAX-B, XML Schema Modeler, Xpath search, XSLT debugger).
More UML modeler
More DB development capabilities
And many other features.