GIN (GWT INjection) brings automatic dependency injection to Google Web Toolkit client-side code. GIN is built on top of Guice and uses (a subset of) Guice's binding language.
The peaberry project is an extension library for Google-Guice
that supports dependency injection of dynamic services.
It provides OSGi integration out of the box, and has plug-in
support for other registry-based service frameworks.