when:
        def schema = addClass(cl, "@${Managed.name} $type ManagedType {}")

        then:
        store.cache.size() > 0

        when:
        forcefullyClearReferences(schema)

        then:
        ConcurrentTestUtil.poll(10) {
            System.gc()
            store.cleanUp()
            store.size() == 0
        }

        where:

            }
        ''')

        when:
        extractor.extract(source)

        then:
        extractor.cache.size() == 1

        when:
        cl.clearCache()
        forcefullyClearReferences(source)
        source = null

        then:
        ConcurrentTestUtil.poll(10) {
            System.gc()
            extractor.cache.cleanUp()
            extractor.cache.size() == 0
        }