Mini-OSGi that can run in a sandbox (like AppEngine or WebStart)?
I really like the concept of modular bundles as implemented by OSGi. I also like "managed deployment" services like Google AppEngine (for web application) or Java WebStart (for client software). These two ideas seem to complement each-other rather well conceptually. However, the OSGi standard includes a couple of features that make it impossible for implementations like Felix or Equinox to run on top of sandboxed virtual machines, such as AppEngine or Webstart. In these environments, it is not possible to get direct access to a file system, for example, which precludes the OSGi bundle cache