override fun close() {
        openJars.values.forEach(JarFile::close)
    }
}


/**
 * See https://docs.oracle.com/javase/8/docs/technotes/tools/findingclasses.html#userclass
 */
private
val File.isClassPathArchive
    get() = extension.run { equals("jar", ignoreCase = true) || equals("zip", ignoreCase = true) }


private
val String.isClassFilePath