when:
        def match = candidates.findByHashValue(hash)

        then:
        1 * c1.findByHashValue(hash) >> null

        and:
        1 * c2.findByHashValue(hash) >> Mock(LocallyAvailableResource)
        0 * c3.findByHashValue(_)
    }

Class <org.gradle.internal.resource.local.LocallyAvailableResource> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (LocallyAvailableResource.java:0)