2006 J2me specifications (CLDC, Doja)

Sun:
http://java.sun.com/javame/reference/apis.jsp

NTT D0CoMo:
http://www.nttdocomo.co.jp/english/service/imode/make/content/iappli/about/index.html
http://www.doja-developer.net/

AU/KDDI:
http://www.au.kddi.com/ezfactory/tec/spec/openappli.html

Softbank Mobile:
http://developers.softbankmobile.co.jp/dp/tech_svc/java/appli.php

Nokia:

http://www.forum.nokia.com/main/resources/technologies/java/

Sony-Ericsson Developer Network
https://developer.sonyericsson.com/site/global/docstools/java/p_java.jsp