SDE for JBuilder (SE) for Linux 

SDE for JBuilder is a UML tool tightly integrated with JBuilder. SDE supports the latest UML notation, code generation (model to Java), reverse engineering (Java to model), import Rational Rose, import/export XMI, UML document generation...
jbuilder uml modeler add-ins plugins uml 2.0 uml tools modelling tools uml diagrams case tools class diagrams use cases rational rose

Visual Paradigm for UML (Standard Edition) for Windows 

Visual Paradigm for UML is an easy-to-use UML tool that supports reverse engineering (code to model), code generation (models to code), import Rational Rose, export/import XMI, report generator, MS Visio integration, version control, plug-in, etc.
visual paradigm uml uml 2.0 uml tools modelling tools uml diagrams case tools class diagrams use cases rational rose object oriented oo ood

SDE for JBuilder (SE) for Mac OS X 

SDE for JBuilder is a UML plug-in for JBuilder. You can draw all types of UML diagrams (class, use case, sequence, component ...) in JBuilder, generate Java code, reverse engineer Java code to class diagram, import Rational Rose...
jbuilder uml modeler add-ins plugins uml 2.0 uml tools modelling tools uml diagrams case tools class diagrams use cases rational rose