J2ME in a Nutshell

J2ME Specifications

All of the J2ME configurations and profiles have been developed as part of the Java Community Process (JCP). The JCP brings together leading players in the relevant industries with the aim of agreeing on a common specification to which they can all design their products. Each configuration or profile started out as a Java Specification Request(JSR), which describes the scope of the work to be done and an outline of the areas to be covered. An expert group is assembled to create the specification, which is then subject to an internal ballot and revision before being made available for public review. Following public review and a possible last revision, the final draft is produced, and the JSR is completed.

The current list of JSRs, including those that have been completed, can be found on the JCP web site at http://jcp.org/jsr/all/. The JSRs that define the current J2ME configurations and profiles are as follows:

Number	Scope
JSR 30	J2ME Connected Limited Device Configuration (CLDC)
JSR 37	Mobile Information Device Profile for the J2ME Platform (MIDP)
JSR 75	PDA Profile for the J2ME Platform
JSR 36	J2ME Connected Device Configuration (CDC)
JSR 46	J2ME Foundation Profile
JSR 129	Personal Basis Profile Specification
JSR 62	Personal Profile Specification
JSR 66	J2ME RMI Profile
JSR 134	Java Game Profile

There is also work in progress that is not directly related to any configuration or profile:

Number	Scope
JSR 82	Java APIs for Bluetooth
JSR 120	Wireless Telephony Communication APIs (WTCA)
JSR 135	J2ME Multimedia API

Finally, even though some of the current profiles have not yet been fully defined, work is already underway to define the next generation of the J2ME platform. At the time of writing, nothing is available for public review, but it would be worth keeping an eye on the following JSRs:

Number	Scope
JSR 68	J2ME Platform Specification
JSR 118	Mobile Information Device Next Generation
JSR 139	Connected Limited Device Configuration Next Generation