Here is the BibTeX entry, you can use to cite the same.
@UNPUBLISHED{byteml,
author = {Karthik Kumar Arun Kumar},
title = {ByteML - Bytecode Markup Language},
note = {Bytecode Markup Language is a JVM - XML interoperability framework},
month = {November},
year = {2002},
owner = {Karthik Kumar Arun Kumar},
keywords = {ByteML},
url = {http://byteml.sourceforge.net},
}