Where are all the J2EE 1.4 implementations?
It's still relatively early days for J2EE 1.4 in the real world, but compare the number of J2EE 1.4 implementations (6) with the number of J2EE 1.3 implementations (21). I remember that prior to the final J2EE 1.3 release, vendors seemed to be falling over themselves to get their implementations out but this doesn't seem to be happening anymore. Most J2EE app servers have some ability to support web services (the key addition for J2EE 1.4) so I'd be surprised if the lack of implementations is due to the complexity involved. Even JSP 2.0 and Servlet 2.4 containers were fairly thin on the ground until recently. What do you think?