A member declared with
protected DocumentReferenceResolver<EntityReference> currentDocumentEntityReferenceResolver;
works on 3.5.1, doesn't work anymore on 4.0; exception is:
Caused by: org.xwiki.component.manager.ComponentLookupException: Can't find descriptor for the component [role = [org.xwiki.model.reference.DocumentReferenceResolver<org.xwiki.model.reference.EntityReference>] hint = [current/reference]]
Note that this issue is the same issue as
XWIKI-8082 but particularized for current/reference. Since XWIKI-8082 was fixed for several hints but not for current/reference hint.