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The current known state for each of these components in Geronimo is detailed here. Feel free to update this information as new details emerge.
Component: Java EE 6
Support for new "java:global", "java:app", and "java:module" namespaces will be required for all profiles of Java EE 6. Unfortunately, the semantics for adding and referencing names in these new namespaces is still up in the air and is one of the items holding the spec open.
Component: Servlet 3.0
Current Geronimo Spec Versions
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Current Geronimo Spec Versions
geronimo-ejb_3.0_spec_-1.0.011
Current Geronimo Provider
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Like the web profile itself, this appears to describe a minimal feature set, but an implementation can provide more than the minimum, if desired. This appears fairly easy to meet, once the 3.1 feature set is implemented. Portions of the 3.1 features have already been implemented in OpenEJB.
The major EJB 3.1 features yet to be completed in OpenEJB are async interfaces, schedule based timers and the no-interface view. Of the three, only the no-interface view is required for EJB Lite. Several updates are required for changes to the EJB 3.1 spec in the last few months mostly around deployment descriptor, additional annotations, Singleton bean lifecycle tweaks and support of the official javax.ejb.embedded.EJBContainer API based on the existing OpenEJB InitialContext/embedded API. Rough estimate of the time required to complete the no-interface view and updates required for the EJB Lite profile are 2-3 weeks and 4-6 weeks respectively. Rough estimate on async invocations/interfaces is 3-5 weeks and schedule based timer support 4-?. The schedule based timer support is the largest undertaking, based on de facto standards like Cron and Quartz, but different enough that it is not possible to use any existing library as-is. Actual completion dates depend on time spent in other priorities.
A major new JEE6/EJB/Servlet feature to be completed in Geronimo is the ability to include EJBs in .war files which required as part of the JEE6 Web Profile. Any EJBs in the webapp share the classloader of the webapp and the java:comp/env namespace of the webapp. The Geronimo deployment process will also need to be updated to treat all webapps as potential sources for EJBs to support this feature. Rough estimate is 3-4 weeks of likely both David Blevins' and David Jencks' time.
Additional Notes
The embedded version of OpenEJB is capable of handling a dynamic provisioning of the different subsystems from the Lite profile version up to the full capability (minus the CORBA integration, which is handled by Geronimo). It appears there will be some work required on the part of Geronimo to create profiles/plugins that will selectively start the GBeans that integrate different portions of the OpenEJB stack with the configuration. Currently, the Geronimo EJB configuration is an all-or-nothing proposition.
EJB 3.1 API libraries currently being developed in asf/openejb/trunk/openejb3/api/ejb31-api-experimental/ with plans to move it to asf/geronimo/specs/trunk/geronimo-ejb_3.1_spec once the specification closes. Current close date is slated for some time in September 2009.
Component: Java Transaction API (JTA) 1.1
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