http://jakarta.apache.org/
http://slashdot.jp/article.pl?sid=01/09/26/0947202&mode=nested&threshold=
http://muimi.com/j/jakarta/
http://www.atmarkit.co.jp/fjava/special/javasite/javasite.02.html
http://www.atmarkit.co.jp/fjava/rensai2/jakarta01/jakarta01.html