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Each OSGi bundle is a tightly coupled, dynamically loadable collection of classes, jars, and configuration files. Each OSGi bundle explicitly declares the packages they provide and the packages they require. By enforcing explicit declarations, the OSGi framework can provide a powerful component model.
The key difference with OSGi is that a JAR is now all private, adding metadata in the manifest makes it a bundle that can safely share with other bundles. OSGi makes sure violations are detected ahead of time. So, can a bundle be used in place of a jar in a JavaEE application? yes, it is a normal JAR.
The OSGi (Open Service Gateway Initiative) specification is a Java framework for developing and deploying modular software programs and libraries.
I have found by pure luck some promising Open Source (Apache License 2) framework that might be of interest. It's called DEMUX Framework . Feel free to evaluate this solution. I haven't myself but browsing through the features and source code let me think it has a good potential and neat integration. Regarding the GUI support, it uses an approach similar to FelixDroid. It could become an Open Source alternative to Prosyst mBS SDK.
This is how its designer defines the framework:
DEMUX Framework makes it easy for Java developers to build applications for desktop, web and mobile devices from single code base. It provides modular applications architecture based on OSGI, which makes it easy to build robust and extensible applications.
However Android is the only mobile OS supported at this stage and I wish him good luck for the other two (I had some painful experiences in the past on this subject)
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