A.6 Deployment
MIDP applications can be deployed conveniently Over-the-Air (OTA) to mobile devices. The MIDP v2.0 specification includes a formal OTA specification that defines the exact OTA process. In summary, there are the following steps:
Prepare an OTA server: The OTA server could be any HTTP Web server with the following correct MIME type setup. Please refer to your server documentation on how to set it up.
text/vnd.sun.j2me.app-descriptor jad
application/java-archive jar
Make the MIDP application available: You can copy the JAD and JAR files to the server's public directory. You also need to make an HTML or WML file that contains a link to the JAD file.Start the OTA process on the client side: On an MIDP-enabled mobile device, you can start the WAP or HTML browser and load the page that contains the JAD link. Click on the link and the JAD MIME type will cause the browser to invoke the MIDP AMS.Verification and security check: The AMS downloads the JAR application, verifies its size and manifest with corresponding properties in the JAD file, and checks that it is properly signed and has the correct permissions. If all of those tests pass, the AMS will install the application and notify a server optionally specified in the JAD file.Application management: The AMS can also update and uninstall the MIDP application.
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