On JBoss EAP 6.0.0 we had a problem specializing the BusinessProcess bean, because recent implementations of Weld now conform to the JSR-299 spec, which states:
"When an enabled bean [...] specializes a second bean, we can be certain that the second bean is never instantiated or called by the container. Even if the second bean defines a producer or observer method, the method will never be called."
This forces one to redefine all producer methods provided by the BusinessProcess bean in order to specialize it.
I already discussed this with Daniel and a colleague at an affected customer. We agreed on the proposal to move the producer methods into separate bean.