It seems like furnace provides multiple services for one service extending another ---------------------------------------------------------------------------------- Key: FURNACE-90 URL: https://issues.jboss.org/browse/FURNACE-90 Project: Forge: Furnace Issue Type: Bug Components: Container - CDI Affects Versions: 2.22.5.Final Reporter: Matej Briskar For example class A, class B extends A and then find all classes of type "A" returns 3 possibilities, two for class B. Will hopefully provide test for this later.