else -> { _ -> null }
        }

    private
    fun jarClassBytesIndexFor(jar: File): ClassBytesIndex = { classFilePath ->
        openJarFile(jar).run {
            getJarEntry(classFilePath)?.let { jarEntry ->
                { getInputStream(jarEntry).use { jarInput -> jarInput.readBytes() } }
            }
        }
    }

    private