entry.isDirectory -> sourceNamesFromDir(entry)
            else -> emptySequence()
        }

    private
    fun sourceNamesFromJar(jar: File): Sequence<String> =
        openJarFile(jar).run {
            entries().asSequence()
                .filter { it.name.isClassFilePath }
                .map { kotlinSourceNameOf(it.name) }
        }

    private

        val DEFAULT_INCLUDES: List<String> = listOf(
            "org/gradle/fileevents"
        )

        @Throws(IOException::class)
        private
        fun openJarFile(file: Path): ZipInputStream {
            return ZipInputStream(Files.newInputStream(file))
        }
    }

    /**
     * Implementation code that can be unit-tested.
     *
     * <p>Visible for testing.</p>