Java but the J2EE additions. Its happened many times, and with 3rd party Java solutions as well. The pattern is the same each time. A technology will emerge as a good solution. As it is used, its found to address 95% of the use cases that occur in development. But, the other 5% of the use cases cause more complexity to be added. Unfortunately, 95% of the complexity is there only for 5% of the use cases.

They should have “expert” packages for those 5% people… I agree… just look at what spring and hibernate did…