CDI specification 1.1 in 5.2.4 Assignability of raw and parameterized types says:
"A raw bean type is considered assignable to a parameterized required type if the raw types are identical and all type parameters
of the required type are either unbounded type variables or java.lang.Object."

This is a clarification added after discussion in https://issues.jboss.org/browse/CDI-304. It should work the same way in CDI 1.0.