Is there a way to develop new JSRs for Java ME enabled devices?

Question

I have a MIDP2.0 mobile device without support for a specific JSR (this is the JSR 180 SIP API for J2ME). The Sun website says there is a reference implementation, but it seems to have already been removed.

The question is, can I develop a JSR 180 and deploy it on a device so that applications can use it? Or should it be in the device’s firmware (obviously, I don’t have easy access to it)?

Thanks for the answers, links, manuals, any information I can get (for noob trying to remember Java ME).

Answer 1

JSR Java ME , ( ) ( ).

, ( ) JSR , . , "" JSR.

JSR 180 , , , - JSR 172 (XML/Web Services), XML -.

Answer 2

, , , JSR.

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