Hi Simon,
Oracle has recently released Oracle JDeveloper 9i
IDE, which contains an integrated UML modelling tool along with providing a Java Development Environment.You may download this product for FREE from
Oracle Technet site.
For the earlier versions of JDeveloper IDE (i.e. Release 2.0, 3.0+), Oracle had partnered with
Ensemble Systems, who had developed a tool called "Rose Link for JDeveloper" which integrates Rational
Rose (98i, 2000e) with JDeveloper IDE.I think this partnership has ceased to exist with the latest release of JDeveloper.
With this new release of JDeveloper you can forward engineer UML artifacts to JDeveloper JPR projects, as well as reverse engineer JPR project changes in the UML artifacts.
Hope this helps,
Sandeep
SCJP2, OCSD(Oracle JDeveloper), OCED(Oracle Internet Platform)