} finally {
            jarFile.close()
        }
    }

    Manifest getManifest() {
        return theManifest.get()
    }

    def assertIsMultiRelease() {
        assert "true" == manifest.mainAttributes.getValue("Multi-Release")
        this
    }

    def assertContainsVersioned(int version, String basePath) {

        }

        expect:
        with(transformJar(factory, testFile)) {
            assertManifestPresentAndFirstEntry()

            assertIsMultiRelease()
            assertContainsFile("Foo.class")
            assertContainsVersioned(AsmConstants.MAX_SUPPORTED_JAVA_VERSION, "Foo.class")
        }

        where:
        factory << [AGENT, LEGACY]
    }