val entryName = dir.relativize(file).joinToString(separator = "/") { it.toString() }
                            jarStream.putNextEntry(JarEntry(entryName))
                            Files.copy(file, jarStream)
                            jarStream.closeEntry()
                            return FileVisitResult.CONTINUE
                        }

            }
        )
    }
}


fun JarOutputStream.addJarEntry(entryName: String, sourceFile: File) {
    val entry = ZipEntry(entryName)
    entry.time = zipEntryBaseTimestamp
    putNextEntry(entry)
    BufferedInputStream(FileInputStream(sourceFile)).use { inputStream -> inputStream.copyTo(this) }
    closeEntry()
}


fun File.getClassSuperTypes(): Set<String> {