AFAICS the weld proxies doesn't implement all methods from every class/interface in the inheritance hierarchy, if the bean class is a abstract class or a interface.

The easiest way to reproduce it, is to run the DeltaSpike partial bean implementation module tests (with e.g.: -PWeld -Dweld.version=2.1.2Final) and removing
@Ignore
from
org.apache.deltaspike.test.core.api.partialbean.uc011.ScopedPartialBeanTest#testPartialBeanWithApplicationScope