``` public static long copy(InputStream input,...

# kobalt

[ethauvin]

public static long copy(InputStream input, OutputStream output, int buffersize) throws IOException {
        byte[] buffer = new byte[buffersize];
        int n = false;

        long count;
        int n;
        for(count = 0L; -1 != (n = input.read(buffer)); count += (long)n) {
            output.write(buffer, 0, n);
        }

        return count;
    }

vs.

public fun InputStream.copyTo(out: OutputStream, bufferSize: Int = DEFAULT_BUFFER_SIZE): Long {
    var bytesCopied: Long = 0
    val buffer = ByteArray(bufferSize)
    var bytes = read(buffer)
    while (bytes >= 0) {
        out.write(buffer, 0, bytes)
        bytesCopied += bytes
        bytes = read(buffer)
    }
    return bytesCopied
}