Doja

DoJa profile is Java environment specification for DoCoMo's mobile phone.

DoJa operates on J2ME CLDC APIs that were defined by the Java Community Process (JCP), DoJa extension library that was defined by NTT DoCoMo to provide communications and other input-output processing, user interface (GUI) and other features/functions unique to i-mode, and extension libraries defined by individual phone terminal makers to add original functions. Please note that DoJa applications that use an API to provide a function that is unique to a particular phone terminal can only work with that particular model.

DoJa allows i-mode to offer more dynamic and interactive content than conventional HTML-based i-mode content. Java for i-mode consists of J2ME CLDC1.0 with Doja 1.0 and Doja 2.0 corresponding to MIDP 1.0 and MIDP2.0. The Doja Profile provides for use with i-mode extension library (Java for i-mode profiles), including user interfaces and HTTP communications.

NTTDoCoMo later fully accepted the full open J2ME standards, introduced by Sun Microsystems, with full MIDP 2.0 deployment in place of Doja 2.0 Profile on i-Mode networks.

For its technology:
Doja Developer Network
http://www.doja-developer.net/